Carbon-Nitrogen Lyases
Pseudomonas pseudoalcaligenes
Carbamates
Derivatives of carbamic acid, H2NC(=O)OH. Included under this heading are N-substituted and O-substituted carbamic acids. In general carbamate esters are referred to as urethanes, and polymers that include repeating units of carbamate are referred to as POLYURETHANES. Note however that polyurethanes are derived from the polymerization of ISOCYANATES and the singular term URETHANE refers to the ethyl ester of carbamic acid.
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Nitric Acid
Nitric acid (HNO3). A colorless liquid that is used in the manufacture of inorganic and organic nitrates and nitro compounds for fertilizers, dye intermediates, explosives, and many different organic chemicals. Continued exposure to vapor may cause chronic bronchitis; chemical pneumonitis may occur. (From Merck Index, 11th ed)
Silver Nitrate
X-Ray Absorption Spectroscopy
Potassium Cyanide
Potassium
An element in the alkali group of metals with an atomic symbol K, atomic number 19, and atomic weight 39.10. It is the chief cation in the intracellular fluid of muscle and other cells. Potassium ion is a strong electrolyte that plays a significant role in the regulation of fluid volume and maintenance of the WATER-ELECTROLYTE BALANCE.
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Messages between computer users via COMPUTER COMMUNICATION NETWORKS. This feature duplicates most of the features of paper mail, such as forwarding, multiple copies, and attachments of images and other file types, but with a speed advantage. The term also refers to an individual message sent in this way.
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2,3-Diphosphoglycerate
A highly anionic organic phosphate which is present in human red blood cells at about the same molar ratio as hemoglobin. It binds to deoxyhemoglobin but not the oxygenated form, therefore diminishing the oxygen affinity of hemoglobin. This is essential in enabling hemoglobin to unload oxygen in tissue capillaries. It is also an intermediate in the conversion of 3-phosphoglycerate to 2-phosphoglycerate by phosphoglycerate mutase (EC 5.4.2.1). (From Stryer Biochemistry, 4th ed, p160; Enzyme Nomenclature, 1992, p508)
Boidae
A family of snakes comprising the boas, anacondas, and pythons. They occupy a variety of habitats through the tropics and subtropics and are arboreal, aquatic or fossorial (burrowing). Some are oviparous, others ovoviviparous. Contrary to popular opinion, they do not crush the bones of their victims: their coils exert enough pressure to stop a prey's breathing, thus suffocating it. There are five subfamilies: Boinae, Bolyerinae, Erycinae, Pythoninae, and Tropidophiinae. (Goin, Goin, and Zug, Introduction to Herpetology, 3d ed, p315-320)
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Flammable, amorphous, vegetable products of secretion or disintegration, usually formed in special cavities of plants. They are generally insoluble in water and soluble in alcohol, carbon tetrachloride, ether, or volatile oils. They are fusible and have a conchoidal fracture. They are the oxidation or polymerization products of the terpenes, and are mixtures of aromatic acids and esters. Most are soft and sticky, but harden after exposure to cold. (From Grant & Hackh's Chemical Dictionary, 5th ed & Dorland, 28th ed)
Plant Transpiration
Multivariate Analysis
Shaw Potassium Channels
Reactivity of cyanate with valine-1 (alpha) of hemoglobin. A probe of conformational change and anion binding. (1/258)
The 3-fold increase in the carbamylation rate of Val-1 (alpha) of hemoglobin upon deoxygenation described earlier is now shown to be a sensitive probe of conformational change. Thus, whereas this residue in methemoglobin A is carbamylated at the same rate as in liganded hemoglobin, upon addition of inositol hexaphosphate its carbamylation rate is enhanced 30% as much as the total change in the rate between the CO and deoxy states. For CO-hemoglobin Kansas in the presence of the organic phosphate, the relative increase in the carbamylation rate of this residue is about 50%. These results indicate that methemoglobin A and hemoglobin Kansas in the presence of inositol hexaphosphate do not assume a conformation identical with deoxyhemoglobin but rather form either a mixture of R and T states or an intermediate conformation in the region around Val-1 (alpha). Studies on the mechanism for the rate enhancement in deoxyhemoglobin suggest that the cyanate anion binds to groups in the vicinity of Val-1 (alpha) prior to proton transfer and carbamylation of this NH2-terminal residue. Thus, specific removal with carboxypeptidase B of Arg-141 (alpha), which is close to Val-1 (alpha) in deoxyhemoglobin, abolishes the enhancement in carbamylation. Chloride, which has the same valency as cyanate, is a better competitive inhibitor of the carbamylation of deoxyhemoglobin (Ki = 50 mM) compared with liganded hemoglobin. Nitrate and iodide are also effective inhibitors of the carbamylation of Val-1 (alpha) of deoxyhemoglobin (Ki = 35 mM); inorganic phosphate, sulfate, and fluoride are poor competitive inhibitors. The change in pKa of Val-1 (alpha) upon deoxygenation may be due to its differential interaction with chloride. (+info)Effect of chronic sodium cyanate administration on O2 transport and uptake in hypoxic and normoxic exercise. (2/258)
Systemic O2 transport during maximal exercise at different inspired PO2 (PIO2) values was studied in sodium cyanate-treated (CY) and nontreated (NT) rats. CY rats exhibited increased O2 affinity of Hb (exercise O2 half-saturation pressure of Hb = 27.5 vs. 42.5 Torr), elevated blood Hb concentration, pulmonary hypertension, blunted hypoxic pulmonary vasoconstriction, and normal ventilatory response to exercise. Maximal rate of convective O2 transport was higher and tissue O2 extraction was lower in CY than in NT rats. The relative magnitude of these opposing changes, which determined the net effect of cyanate on maximal O2 uptake (VO2 max), varied at different PIO2: VO2 max (ml. min-1. kg-1) was lower in normoxia (72.8 +/- 1.9 vs. 81. 1 +/- 1.2), the same at 70 Torr PIO2 (55.4 +/- 1.4 vs. 54.1 +/- 1.4), and higher at 55 Torr PIO2 (48 +/- 0.7 vs. 40.4 +/- 1.9) in CY than in NT rats. The beneficial effect of cyanate on VO2 max at 55 Torr PIO2 disappeared when Hb concentration was lowered to normal. It is concluded that the effect of cyanate on VO2 max depends on the relative changes in blood O2 convection and tissue O2 extraction, which vary at different PIO2. Although uptake of O2 by the blood in the lungs is enhanced by cyanate, its release at the tissues is limited, probably because of a reduction in the capillary-to-tissue PO2 diffusion gradient secondary to the increased O2 affinity of Hb. (+info)Subchronic exposure to diisocyanates increases guinea pig tracheal smooth muscle responses to acetylcholine. (3/258)
OBJECTIVE: In order to study the threshold concentrations of isocyanates (IC) for induction of lung disorders, constrictive responses of tracheal smooth muscles to acetylcholine (ACH) in guinea pigs with and without diisocyanate [toluene diisocyanate (TDI), hexamethylene diisocyanate (HDI) and diphenylmethane diisocyanate (MDI)] exposure were investigated. METHODS: An IC-induced increase in smooth muscle responsiveness was studied by measuring cumulative ACH dose responses (10(-10) to 10(-4) M ACH). Basal ACH dose-response curves, measured twice in intervals of 1 h using tracheal preparations of 11 guinea pigs previously not exposed to IC, were reproducible. RESULTS: Subchronic in vivo exposures to TDI, HDI, and MDI atmospheres of 10 and 20 parts per billion (ppb) on 5 consecutive days led to significantly (p < 0.05) increased ACH responsiveness of tracheal smooth muscle, whereas concentrations of 2.5 and 5 ppb were not effective. Exposure to HDI atmospheres of 10 ppb for 1, 2, 4, or 8 weeks resulted in a time-dependent increase in ACH responses (p < 0.05) of guinea pig tracheal smooth muscle. Increased tracheal muscle responses to ACH were transient since tracheal preparations from animals exposed to 10 and 20 ppb MDI for 4 weeks and with an exposure-free interval of 8 weeks before preparation did not show enlarged ACH responses, which were present in preparations at the end of the exposure period (p < 0.05). Exposure to low IC concentrations as present in workplaces cause increased ACH responsiveness of guinea pig tracheal smooth muscle. The increased responsiveness of the airways seems to be largely reversible, since normal responses were found after 8 weeks of IC avoidance. CONCLUSION: Reversibility of IC-induced airway hyperresponsiveness is of great occupational and preventive medical importance. Workers with acquired airway hyperresponsiveness might escape lung damage if the changes are detected in an early stage before alterations in lung function are in a chronic stage. (+info)Bioactivation of cyanide to cyanate in sulfur amino acid deficiency: relevance to neurological disease in humans subsisting on cassava. (4/258)
Neurological disorders have been reported from parts of Africa with protein-deficient populations and attributed to cyanide (CN-) exposure from prolonged dietary use of cassava, a cyanophoric plant. Cyanide is normally metabolized to thiocyanate (SCN-) by the sulfur-dependent enzyme rhodanese. However, in protein-deficient subjects where sulfur amino acids (SAA) are low, CN may conceivably be converted to cyanate (OCN-), which is known to cause neurodegenerative disease in humans and animals. This study investigates the fate of potassium cyanide administered orally to rats maintained for up to 4 weeks on either a balanced diet (BD) or a diet lacking the SAAs, L-cystine and L-methionine. In both groups, there was a time-dependent increase in plasma cyanate, with exponential OCN- increases in SAA-deficient rats. A strongly positive linear relationship between blood CN- and plasma OCN- concentrations was observed in these animals. These data are consistent with the hypothesis that cyanate is an important mediator of chronic cyanide neurotoxicity during protein-calorie deficiency. The potential role of thiocyanate in cassava-associated konzo is discussed in relationship to the etiology of the comparable pattern of motor-system disease (spastic paraparesis) seen in lathyrism. (+info)Treatment of intradural paraclinoidal aneurysms. (5/258)
Intradural paraclinoidal aneurysm still presents conceptual confusion and technical surgical problems. The clinical features of 68 consecutive patients with paraclinoidal aneurysms were analyzed. The pterional approach was used in all patients. Subarachnoid hemorrhage (SAH) occurred in 37 patients from the paraclinoidal aneurysm and in 10 patients from another associated aneurysm. Thirty-four of the 37 ruptured paraclinoidal aneurysms were clipped, two blister-like aneurysms required trapping, and one blister-like aneurysm was coated. Thirteen of the 31 unruptured paraclinoidal aneurysms, consisting of 10 with ruptured associated aneurysm, four symptomatic, and 17 incidental, were clipped and 18 were coated. Favorable outcomes were obtained in 38 of 47 patients with SAH and 17 of 21 patients without SAH. Nine unfavorable outcomes in SAH patients were caused by primary brain damage (5), vasospasm (2), cerebral infarction after trapping (1), and pneumonia (1). All four unfavorable outcomes in non-SAH patients were due to surgical procedures for giant aneurysms or associated basilar artery aneurysm. Removal of the anterior clinoid process was performed to secure the proximal neck in 15 patients with large or giant aneurysms. Multiple clips with or without fenestrated clips were required in all giant aneurysms, and exposure of the cervical internal carotid artery (ICA) in 17 giant or large aneurysms. Fenestrated clips were also useful for one small aneurysm projecting posteriorly. A favorable outcome was achieved in 17 of 19 patients undergoing coating. Coating without clipping might be better for some blister-like ICA aneurysms, even if ruptured. Paraclinoidal aneurysms can be clipped with favorable results using these techniques except for giant aneurysms and associated basilar artery aneurysm. (+info)Biological monitoring to assess exposure from use of isocyanates in motor vehicle repair. (6/258)
OBJECTIVES: To develop a method for the measurement of a metabolite of hexamethylene diisocyanate (HDI), an isocyanate, and use it to assess the exposure of sprayers employed in motor vehicle repair shops. METHODS: Urine samples were taken from sprayers wearing personal protective equipment and spraying in booths or with local exhaust ventilation, from bystanders, and from unexposed subjects. Samples were analyzed for a metabolite of HDI, hexamethylene diamine (HDA), by gas chromatography-mass spectrometry (GC-MS). RESULTS: HDA was detected in four sprayers and one bystander out of 22 workers. No HDA was detected in the urine of unexposed subjects. CONCLUSIONS: Exposure to isocyanates still occurs despite the use of personal protective equipment and the use of a booth or extracted space. Health surveillance is likely to be required to provide feedback on the adequacy of controls even if such precautions are used and to identify cases of early asthma. Biological monitoring can provide a useful additional tool to assess exposure and the adequacy of controls in this group of exposed workers. (+info)Histological changes in the rat common carotid artery following simultaneous topical application of cotton sheet and cyanoacrylate glue. (7/258)
Histological changes in and around the arterial walls of rats were investigated following simultaneous topical application of cotton sheet and cyanoacrylate glue. The bilateral common carotid arteries were exposed using sterile techniques, and the test materials were applied to the right artery. The left artery served as a control. Changes in arterial histology were evaluated at 2 weeks, 1 month, 2 months, and 3 months after surgery. Extensive inflammation consisting primarily of histiocytes and multinuclear giant cells was observed around the materials, but tended to decrease by 3 months. Necrosis in the media and fibrosis in the adventitia initially appeared around 2 weeks, and became advanced by 2-3 months. At 2-3 months, disruption of elastic fibers and marked fibrosis in the media were seen, and endothelial proliferation in the intima appeared. Intimal proliferation was observed at both the experimental and other sites of the vessels. The present results suggest that simultaneous use of the test materials can cause the arterial occlusive lesions observed following aneurysmal surgery. (+info)Exposure biomarkers and risk from gluing and heating of polyurethane: a cross sectional study of respiratory symptoms. (8/258)
OBJECTIVES: To define the relation between exposure to polyurethane (PUR) glue, biomarkers of exposure and effect, and work related symptoms that occur at least once a week. METHODS: In a cross sectional study, 152 workers and 14 clerks in a factory with exposure to sprayed and heated PUR glue containing 4, 4'-diphenylmethane (MDI) or 1,6-hexamethylene (HDI) di-isocyanate were examined with gas chromatography-mass spectrometry (GC-MS) for metabolites of MDI in plasma (P-MDX) and urine (U-MDX), 2,4- and 2, 6-toluene di-isocyanate (TDI; P-TDX, U-TDX) and HDI in plasma and urine, specific serum IgG (S-IgG-MDI, S-IgG-HDI, and S-IgG-TDI, respectively) and IgE (S-IgE-MDI). Work related symptoms of the eyes and airways (nose or lower airways, or both), and lung function were also evaluated. RESULTS: P-MDX was detected in 65% of the workers, U-TDX in 47%, HDX in none. Three per cent were positive for S-IgE-MDI, 33% for S-IgG-MDI, 32% for S-IgG-TDI, and 12% for S-IgG-HDI. A few clerks had metabolites, and some had antibodies. Most metabolites and immunoglobulins were slightly correlated-for example, P-MDX v S-IgG-MDI: r(s)=0.21. Workers who heated glue had increased P-MDX (odds ratio (OR)=12 for a value above the median) and S-IgG-MDI (OR=3.7), sprayers P-2,4-TDX (OR=6.2) and P-2,6-TDX (OR=16). Twenty six per cent of the workers had work related symptoms of the airways, 21% from the nose, 11% from the lower airways. Spraying of glue increased the risk of work related symptoms and slightly decreased lung function. U-MDX was associated with work related symptoms from the airways (OR=3.7) and P-2,6-TDX with work related symptoms from the lower airways (OR=6.6). S-IgG-MDI was related to work related symptoms from the airways (OR=2.6). CONCLUSIONS: There were relations between exposures to sprayed and heated PUR glue based on MDI and HDI, concentrations of metabolites of MDI and TDI in plasma and urine, specific IgG serum antibodies against MDI, TDI, and HDI, and work related symptoms. (+info)
Sodium Cyanate Manufacturers, Stockists, Suppliers, Dealers in Dubai - Dubai Yellow Pages Online
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EC 4.2.1.104
Ammonium cyanate | chemical compound | Britannica
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SMART: CXC domain annotation
Impaired O2 Delivery in Cyanate-Treated Animals. | Annals of Internal Medicine | American College of Physicians
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Water uptake effects in resins based on alkenyl-modified cyanate ester-bismaleimide blends - Surrey Research Insight Open...
Friedrich Woehler (1800-1882) - International Society for the Study of Xenobiotics
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Antibody Purification (Affinity)
Date naissance viggo mortensen
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Hexim1 MGI Mouse Gene Detail - MGI:2385923 - hexamethylene bis-acetamide inducible 1
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2012 Citroen C3 Picasso Picasso Code HDI £3,750
Hastings woman too scared to run after pavement fall - Hastings and St. Leonards Observer
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Global Research Analysis: Toluene Diisocyanate Based Flexible Foam to Account for 86.1% of the Global Toluene Diisocyanate...
methyl isocyanate
Biomarkers of exposure, antibodies, and respiratory symptoms in workers heating polyurethane glue. | Occupational &...
Compatibilization of poly(3-hydroxybutyrate-co-3-hydroxyvalerate)- poly(lactic acid) blends with diisocyanates
SciELO - Public Health - Susceptibility of the Bhopal-methyl isocyanate (MIC)-gas-tragedy survivors and their offspring to...
3D printing of high performance cyanate ester thermoset polymers - Journal of Materials Chemistry A (RSC Publishing)
Patent US5185200 - Aqueous polyisocyanate dispersions with reduced isocyanate contents and ... - Google Patents
Isocyanate - What does isocyanate stand for? The Free Dictionary
TDI 80/20(Toluene diisocyanate) shop for sale in China (Mainland) - Wuqiang County Huiquan Dyestuff Chemicals Co., Ltd.
New PDF release: Chemistry of Heterocyclic Compounds: The Purines, Supplement - Rigid Flex PCB Library
4-Methylbenzyl isocyanate 56651-57-1 Route Of Synthesis Synthetic Routes
4-tolyl isocyanate 622-58-2 Route Of Synthesis Synthetic Routes
o-Tolyl isocyanate, 99+%, ACROS Organicsâ„¢ 10g; Glass bottle o-Tolyl isocyanate, 99+%, ACROS Organicsâ„¢
environment | Links International Journal of Socialist Renewal
Articles | DeMarco, Negle & Lane LLP
Leicester Research Archive: Some aspects of the chemistry of chlorosulphonyl isocyanate.
Global 4-Chlorophenyl Isocyanate Industry : Market Research, Market Forecast and Industry Outlook 2019
Isocyanate
Prednisone, indomethacin and airway responsiveness in toluene diisocyanate sensitized subjects.
Reviewing the high-school text Chemistry in the Community:
ChemCom (2002; W.H. Freeman)
AJOU Open Repository: Clinical significance of specific IgG and IgE antibodies to toluene diisocyanate (TDI)-human-serum...
NIOSHTIC-2 Publications Search - 20040181 - Vapor conjugation of toluene diisocyanate to specific lysines of human albumin.
Toluene Diisocyanate Market | TDI Market, Industry Report, 2026
Japan: Toluene Diisocyanate (TDI) Industry Forecast to 2019
Chemical Database: Toluene diisocyanate (EnvironmentalChemistry.com)
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Toluene Diisocyanate China Report | IHS Markit
When it plays ethics, sport must raise its game | The Times & The Sunday Times
Publications | College of Health Sciences (CHS)
Isophorone diisocyanate, 98%, ACROS Organicsâ„¢ 1L; Glass bottle Isophorone diisocyanate, 98%, ACROS Organicsâ„¢
Global Isocyanates Market 2017 - BASF, Bayer, BorsodChem, Vencorex and CNIGC - World Of Wallstreet
Beckmann rearrangement - Wikipedia
4-Fluorophenethyl isocyanate | 65535-53-7 | Georganics Ltd.
Global Isocyanate Market Professional Survey Report 2016 : ReportsnReports
2,3-Dimethylphenyl isocyanate | CAS 1591-99-7 | SCBT - Santa Cruz Biotechnology
tert-Butyl isocyanate 97% | Sigma-Aldrich
Improving the properties of ionic liquid-treated lignin-urea-formaldehyde resins by a small addition of isocyanate for wood...
Two-component adhesive
Coherence and anticoherence resonance in high-concentration erbium-doped fiber laser
Reaction mass of 4,4-methylenediphenyl... - Registration Dossier - ECHA
Controlling Residual Isocyanate - METTLER TOLEDO
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Termwiki Industry
Patent US9168396 - Composition and method - Google Patentsuche
Thiocyanate
... is analogous to the cyanate ion, [OCN]−, wherein oxygen is replaced by sulfur. [SCN]− is one of the pseudohalides, ... Guy, R. G. (1977). "Syntheses and Preparative Applications of Thiocyanates". In Patai, S. (ed.). Chemistry of Cyanates and ...
Carbon monoxide
Cyanates [:O-C≡N:]-. *Thiocyanates [:S-C≡N:]-. *Fulminates [:C≡N-O:]- ...
Carbide
Cyanates [:O-C≡N:]-. *Thiocyanates [:S-C≡N:]-. *Fulminates [:C≡N-O:]- ...
Carbonyl sulfide
Cyanates [:O-C≡N:]-. *Thiocyanates [:S-C≡N:]-. *Fulminates [:C≡N-O:]- ...
Bicarbonate
Cyanates [:O-C≡N:]-. *Thiocyanates [:S-C≡N:]-. *Fulminates [:C≡N-O:]- ...
Thiocarbamate
... as well as between thiols and cyanates. Alternatively, they arise by the reaction of amines with carbonyl sulfide. 2 R2NH + COS ...
Ate complex
Also cyanate, isocyanate, thiocyanate, fulminate. Sulfur oxoanions, thioacetate, thiolates. Chlorosulfate, chloroacetate, etc. ...
List of inorganic compounds
Sodium cyanate - NaCNO. *Sodium cyanide - NaCN. *Sodium dichromate - Na2Cr2O7.2H2O ...
Homocitrulline
The metabolite is generated from a lysine residue after lysine reacts with cyanate. Cyanate is present in the human body in ... This enzyme converts thiocyanate to cyanate. Increased levels of cyanate can now carbamylate lysine residues. Myeloperoxidase ... 2001 Mar 24;131(11-12):139-4. Kraus LM, Elberger AJ, Handorf CR, Pabst MJ, Kraus AP Jr: Urea-derived cyanate forms epsilon- ... Myeloperoxidase can use SCN− as a cosubstrate together with hydrogen peroxide (H2O2) to form cyanate. In patients with kidney ...
Amide
"Ueber einige Reaktionen der aromatischen Cyanate". Berichte der deutschen chemischen Gesellschaft. 18: 873-877. doi:10.1002/ ...
Ureas
Frederick Kurzer (1951). "Arylureas I. Cyanate Method p-Bromophenylurea". Org. Synth. 31: 8. doi:10.15227/orgsyn.031.0008. Roy ... NaCl The artificial sweetener dulcin is produced by the condensation of ethoxyaniline with potassium cyanate. Si(NCO)4 is also ... unsymmetrical primary ureas are generated by condensation of ammonium salts and alkali metal cyanates: Na+NCO− + [R2NH2]Cl → ( ...
Ozone
... can be used to detoxify cyanide wastes (for example from gold and silver mining) by oxidizing cyanide to cyanate and ... Ozone will also detoxify cyanides by converting them to cyanates. CN− + O3 → CNO− + O2 Ozone will also completely decompose ...
Nitrososphaera gargensis
As a chemolithoautotroph, Nitrososphaera gargensis performs aerobic oxidation of ammonia to nitrite and breaks down cyanate for ... "Cyanate as an Energy Source for Nitrifiers". Nature. 524 (7563): 105-08. Bibcode:2015Natur.524..105P. doi:10.1038/nature14856. ... or urea and potentially cyanate as other sources of ammonia. Nitrososphaera gargensis was discovered in a Garga hot spring and ...
Mercury(II) fulminate
Mercury(II) cyanate, though its chemical formula is identical, has a different atomic arrangement; the cyanate and fulminate ... 4 Hg(CNO)2 → 2 CO2 + N2 + HgO + 3 Hg(OCN)CN Hg(CNO)2 → 2 CO + N2 + Hg Hg(CNO)2 → :Hg(OCN)2 (cyanate or / and isocyanate) 2 Hg( ...
Gold cyanidation
Caro's acid - peroxomonosulfuric acid (H2SO5) - converts cyanide to cyanate. Cyanate then hydrolyses to ammonium and carbonate ... The INCO-licensed process and the Caro's acid process oxidise the cyanide to cyanate, which is not as toxic as the cyanide ion ... Over 90 mines worldwide now use an Inco SO2/air detoxification circuit to convert cyanide to the much less toxic cyanate before ... Remaining free cyanide degrades in the pond, while cyanate ions hydrolyse to ammonium. Studies show that residual cyanide ...
Thermoset polymer matrix
Kessler, Michael R. (2012). "Cyanate Ester Resins adapted from Cyanate Ester Resins". Wiley Encyclopedia of Composites. doi: ... The reaction of bisphenols or multifunctional phenol novolac resins with cyanogen bromide or chloride leads to cyanate ... When postcured, all residual cyanate ester functionality polymerises by cyclotrimerisation leading to tightly crosslinked ... Cyanate ester resin prepregs combine the high temperature stability of polyimides with the flame and fire resistance of ...
Methylene diphenyl diisocyanate
Compared to other organic cyanates, MDI has a relatively low human toxicity. It is a potentially violently reactive material ...
Tetracyanomethane
In alkaline solutions tricyanomethanide and cyanate ions are produced. Tricyanomethane (cyanoform) Barnes, D.S.; Mortimer, C.T ...
Matrix (composite)
... in space applications when they are cyanate-ester-based; in auto body and outdoor equipment repairs when they are epoxy-based. ...
Curtius rearrangement
Wentrup, C.; Bornemann, H. (2005). "Curtius rearrangment of acyl azides revisited - formation of cyanate". Eur. J. Org. Chem.: ...
Friedrich Wöhler
Urea and ammonium cyanate are further examples of structural isomers of chemical compounds. Heating ammonium cyanate converts ... Silver fulminate is explosive, while silver cyanate is a stable compound. Liebig and Wöhler recognized these as being examples ... Liebig and Wöhler investigated silver fulminate and silver cyanate. These two compounds have the same chemical composition, yet ... a pioneer in organic chemistry as a result of his 1828 demonstration of the laboratory synthesis of urea from ammonium cyanate ...
Ferritic nitrocarburizing
The process uses a salt bath of alkali cyanate. This is contained in a steel pot that has an aeration system. The cyanate ... The bath is then treated to convert the carbonate back to a cyanate. The surface formed from the reaction has a compound layer ... This is done to minimize distortion and to destroy any lingering cyanates or cyanides left on the workpiece. Other trademarked ...
Cyanogen bromide
Because cyanate esters are more reactive than are cyclic imidocarbonates, the amine will react mostly with the ester, yielding ... The cyanide can then be oxidized by sodium or calcium hypochlorite to the less toxic cyanate ion. Note that deactivation is ... Cyanogen bromide is also often used because it reacts with the hydroxyl groups on agarose to form cyanate esters and ... Cyanogen bromide can be used to prepare aryl nitriles, nitriles, anhydrides, and cyanates. It can also serve as a cleaving ...
Mercury(II) thiocyanate
Reaction of Photogenerated Vinyl Cations with Cyanate and Thiocyanate Ions". Journal of Organic Chemistry. 55 (6): 1801-1805. ...
Heterocumulene
These include carbon dioxide, carbon disulfide, carbon diselenide, cyanate, thiocyanate. Some definitions of heterocumulenes ...
Pseudohalogen
Well-known pseudohalogen functional groups include cyanide, cyanate, thiocyanate, and azide. Many pseudohalogens are known by ... cyanates, fulminate, rhodanide and azide. A common complex pseudohalide is a tetracarbonylcobaltate [Co(CO) 4]− . The acid HCo( ...
Wöhler synthesis
... a combination of lead cyanate and ammonia and finally from a combination of mercury cyanate and cyanatic ammonia (which is ... The actual reaction taking place is a double displacement reaction to form ammonium cyanate: Pb ( OCN ) 2 + 2 NH 3 + 2 H 2 O ⟶ ... The Wöhler synthesis is the conversion of ammonium cyanate into urea. This chemical reaction was described in 1828 by Friedrich ... Although the Wöhler reaction concerns the conversion of ammonium cyanate, this salt appears only as an (unstable) intermediate ...
Imidoyl chloride
Most of these syntheses involve replacing the chloride with alcohols, thiols, amines, and cyanates, respectively. Imidoyl ...
Methylobacterium thiocyanatum
nov., capable of growth on thiocyanate or cyanate as sole nitrogen sources". Archives of Microbiology. 169 (2): 148-58. doi: ... nov., capable of growth on thiocyanate or cyanate as sole nitrogen sources". Archives of Microbiology. 169 (2): 148-58. doi: ...
Phosphaethynolate
Lu, Y., Wang, H., Xie, Y., Liu, H. and Schaefer, H. F. (2014) 'The cyanate and 2-phosphaethynolate anion congeners ECO-(E = N, ... The same applies for the cyanate anion hence why PCO is observed to have similar pseudo-halogenic behaviour. Coordination via ... The phosphaethynolate anion is the phosphorus-containing analogue of the cyanate anion with the chemical formula [PCO]− or [OCP ... The phosphaethynolate anion is the heavier isoelectronic congener of the cyanate anion. It has been shown that it behaves in a ...
Ammonium cyanate - Wikipedia
Ammonium cyanate is an inorganic compound with the formula NH4OCN. It is a colorless solid. ... Shorter, J. (1978). "The conversion of ammonium cyanate into urea. A saga in Reaction mechanisms". Chemical Society Reviews. 7 ... "Ammonium cyanate shows N-H···N hydrogen bonding, not N-H···O". Journal of the American Chemical Society. 125: 14449-14451. doi: ... Retrieved from "https://en.wikipedia.org/w/index.php?title=Ammonium_cyanate&oldid=840644401" ...
Cyanate - Wikipedia
Compounds that contain the group −O−C≡N, are known as a cyanates, or cyanate esters. Aryl cyanates such are phenyl cyanate, ... A cyanate ester is an organic compound containing the cyanate group. The cyanate ion is an ambidentate ligand, forming ... In N-bonded cyanate complexes the M−NCO unit sometimes has a linear structure, but with O-bonded cyanate the M−O−C unit is bent ... Sodium cyanate is isostructural with sodium fulminate, confirming the linear structure of the cyanate ion. It is made ...
Ammonium cyanate | chemical compound | Britannica
German chemist Friedrich Wöhler from ammonium cyanate in 1828 was the first generally accepted laboratory synthesis of a ... Other articles where Ammonium cyanate is discussed: urea: … ... to make the inorganic substance ammonium cyanate. To his ... German chemist Friedrich Wöhler from ammonium cyanate in 1828 was the first generally accepted laboratory synthesis of a ... complete surprise, he obtained a product that had the same molecular formula as ammonium cyanate but was instead the well-known ...
Silver cyanate - Wikipedia
Silver cyanate is the cyanate salt of silver. It can be made by the reaction of potassium cyanate with silver nitrate in ... with the cyanate ions perpendicular to that axis. Silver cyanate reacts with nitric acid to form silver nitrate, carbon dioxide ... analogous to the reaction used for the industrial production of sodium cyanate, may be used. Silver cyanate is a beige to gray ... 1965). 18, 424-428, doi:10.1107/S0365110X65000944 J. Milbauer: Bestimmung und Trennung der Cyanate, Cyanide, Rhodanide und ...
Potassium Cyanate | Definition of Potassium Cyanate by Merriam-Webster
Potassium cyanate definition is - a crystalline salt KOCN made by oxidizing potassium cyanide or by heating a mixture of ... Share potassium cyanate Post the Definition of potassium cyanate to Facebook Share the Definition of potassium cyanate on ... Comments on potassium cyanate What made you want to look up potassium cyanate? Please tell us where you read or heard it ( ... Dictionary Entries near potassium cyanate. potassium chloride potassium chromate potassium cobaltinitrite potassium cyanate ...
Silver cyanate 99% | 3315-16-0
Sodium cyanate - Registration Dossier - ECHA
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice ...
Kinetics and mechanisms of reactions of cyanates and related compounds - Cyanates and Their Thio Derivatives: Volume 1 (1977) -...
Non-enzymatic ATP synthesis by the phosphorylation of ADP with the assistance of cyanate and magnesium ion | SpringerLink
Sodium Cyanate - 917-61-3 Latest Price, Manufacturers & Suppliers
A physiological role for cyanate-induced carbonic anhydrase in Escherichia coli. | Journal of Bacteriology
... it was significantly less sensitive to the toxic effects of cyanate and could degrade cyanate and use cyanate as the sole ... and the mutant strain was unable to degrade cyanate and therefore could not use cyanate as the sole nitrogen source when grown ... A physiological role for cyanate-induced carbonic anhydrase in Escherichia coli.. M B Guilloton, A F Lamblin, E I Kozliak, M ... A physiological role for cyanate-induced carbonic anhydrase in Escherichia coli.. M B Guilloton, A F Lamblin, E I Kozliak, M ...
Red Cell Survival of Cyanate Reacted Sickle Cells | Clinical Science
Impaired O2 Delivery in Cyanate-Treated Animals. | Annals of Internal Medicine | American College of Physicians
Since cyanate-treated erythrocytes have increased oxygen affinity, we studied the effect of chronic cyanate administration on ... Sodium cyanate (CNO) was administered for 8 weeks to two groups of rats. Thirty received 625 mg/kg body weight-week orally, and ... Impaired O2 Delivery in Cyanate-Treated Animals. Anthony Melaragno, B.S.; Patrick W. Flanigan, M.D.; Philip A. Bromberg, M.D., ... Impaired O2 Delivery in Cyanate-Treated Animals.. Ann Intern Med. 1973;78:823. doi: 10.7326/0003-4819-78-5-823_2 ...
Human Metabolome Database: Showing metabocard for Cyanate (HMDB0002078)
Cyanate. Description. The cyanate ion is an anion consisting of one oxygen atom, one carbon atom, and one nitrogen atom, [OCN ... The cyanate ion is an ambident nucleophile in nucleophilic substitution because it can react to form an alkyl cyanate R-OCN ( ... The cyanate ion possesses 1 unit of negative charge, borne mainly by the nitrogen atom. In organic compounds the cyanate group ... Cyanate can be decomposed by the enzyme cyanate lyase (or cyanase), which is found in bacteria and plants. In particular ...
3D printing of high performance cyanate ester thermoset polymers - Journal of Materials Chemistry A (RSC Publishing)
... thermal cure cyanate ester for the fabrication of robust 3D printed structures through the formulation, tailoring and post ... 3D printing of high performance cyanate ester thermoset polymers S. Chandrasekaran, E. B. Duoss, M. A. Worsley and J. P. ... We report 3D printing of a pure thermal cure cyanate ester for the fabrication of robust 3D printed structures through the ...
Sodium Cyanate | Sodium Cyanate Dealers, Suppliers & Manufacturer List | IndianYellowPages
Yellow Pages Directory of Sodium Cyanate, Sodium Cyanate manufacturers, Traders, and Sodium Cyanate, Sodium Cyanate Suppliers ... Find the list of best Sodium Cyanate suppliers & Manufacturers. ... Deals in Sodium Cyanate, Chemical Products Send Inquiry. View ... Deals in Sodium Cyanate, aniline 2 4 disulfonic acid, aniline 2 5 disulfonic acid ... Deals in Sodium Cyanate, Cement, Clinkers, Pig Iron, Rock Phosphate, Zinc Ash ...
Global and Chinese Potassium cyanate Industry, 2016 Market Research Report
Global and Chinese Potassium cyanate Industry, 2011-2021 Market Research Report is a professional and - Market research ... Global and Chinese Potassium cyanate Industry, 2016 Market Research Report The ... 8.3 Effects to Potassium cyanate Industry. Chapter Nine Market Dynamics of Potassium cyanate Industry. 9.1 Potassium cyanate ... 1.1 Brief Introduction of Potassium cyanate. 1.2 Development of Potassium cyanate Industry. 1.3 Status of Potassium cyanate ...
CONVERSION OF NITRIC OXIDE TO ISOCYANIC ACID AND AMMONIUM CYANATE OVER PALLADIUM, IRIDIUM, AND PLATINUM-10% RUTHENIUM CATALYSTS...
Plus it
Chick fibroblasts which are normally insensitive to the cyanate metabolite become cyanate sensitive after transformation by the ... Activation of Sodium Cyanate for Selective Inhibition of Protein Synthesis in Cultured Tumor Cells. Lidia C. Boffa, Susan Kozak ... Sodium cyanate, a selective inhibitor of protein synthesis in animal tumors in situ, has no comparable effect when added to ... However, a rapid inhibition of protein synthesis in cultured tumor cells can be achieved by reaction of cyanate with the drug- ...
Paper of the month: A Diels-Alder reaction between cyanates and cyclopentadienone-derivatives - a new class of crosslinkable...
of cyanate ester was added.. *The cyclopentadienone possesses a deep purple color while the polymer is colorless. Therefore, UV ... Cyanate esters are also well renowned for their thermal stability as thermosetting materials. To combine these properties, Voit ... Hyperbranched polyphenylenes and cyanate esters are two unique classes of materials that possess complementary properties. On ... Different to fully phenylene-based systems which are difficult to analyze by 13C NMR spectroscopy, the reaction with cyanate ...
Cyanate - What does cyanate stand for? The Free Dictionary
... cyanate is listed in the Worlds largest and most authoritative dictionary database of abbreviations and acronyms ... Looking for online definition of cyanate or what cyanate stands for? ... redirected from cyanate). Also found in: Dictionary, Medical, Encyclopedia, Wikipedia.. Related to cyanate: Ammonium cyanate, ... Cyanate - What does cyanate stand for? The Free Dictionary https://acronyms.thefreedictionary.com/cyanate ...
Difunctional Cyanates And Polymers Thereof
Disclosed is the preparation of novel difunctional cyanate monomers with increased aromatic chain length between the cyanate ... Difunctional Cyanates And Polymers Thereof. Disclosed is the preparation of novel difunctional cyanate. monomers with increased ... Disclosed is the preparation of novel difunctional cyanate monomers with increased aromatic chain length between the cyanate ... Difunctional Cyanates And Polymers Thereof. IP.com Disclosure Number: IPCOM000103347D Original Publication Date: 1990-Oct-01 ...
Sciencemadness Discussion Board - Failure to isolate Calcium Cyanate - Powered by XMB 1.9.11
Failure to isolate Calcium Cyanate. Hey guys, just hoping for an explanation or insight into why my procedure isnt working. ... Adding acid to sodium cyanate will decompose it when hot for sure its also a terrible way to purify it,you need to dissolve in ... Im attempting to make pure calcium cyanate, so I did the urea/ sodium carbonate melt to collect a product of solid off-white ... To remove contaminants such as sodium carbonate, the crude sodium cyanate was dissolved in 50% hot acetic acid. The resulting ...
Water uptake effects in resins based on alkenyl-modified cyanate ester-bismaleimide blends - Surrey Research Insight Open...
Water uptake effects in resins based on alkenyl-modified cyanate ester-bismaleimide blends ... Science & Technology, Physical Sciences, Polymer Science, POLYMER SCIENCE, cyanate ester, bismaleimide, blends, alkenyl ... Water uptake effects in resins based on alkenyl-modified cyanate ester-bismaleimide blends POLYMER INTERNATIONAL, 50 (4). pp. ... cyanates, reactive modifiers, water uptake, MECHANICAL-PROPERTIES, MONOMERS, POLYMERIZATION, POLYMERS, COMPOSITES Related URLs ...
Multivariate analysis of spectra of cyanate ester/bismaleimide blends and correlations with properties - Surrey Research...
Hamerton, I, Herman, H, Mudhar, AK, Chaplin, A and Shaw, SJ (2002) Multivariate analysis of spectra of cyanate ester/ ... Multivariate analysis of spectra of cyanate ester/bismaleimide blends and correlations with properties ... Science & Technology, Physical Sciences, Polymer Science, POLYMER SCIENCE, near infrared, chemometrics, cyanate ester ...
Cyanate - Wikipedia
Compounds that contain the group −O−C≡N, are known as a cyanates, or cyanate esters. Aryl cyanates such are phenyl cyanate, C6H ... Cyanate salts[edit]. Sodium cyanate is isostructural with sodium fulminate, confirming the linear structure of the cyanate ion. ... Cyanate ion[edit]. The three atoms in a cyanate ion lie on a straight line, giving the ion a linear structure. The electronic ... Complexes with the cyanate ion[edit]. Cyanate is an ambidentate ligand which can donate the pair of electrons on the nitrogen ...
Potassium Cyanate | RMI
Potassium cyanate | VWR
Potassium cyanate | 590-28-3
You can also browse global suppliers,vendor,prices,Price,manufacturers of Potassium cyanate(590-28-3). At last,Potassium ... cyanate(590-28-3) safety, risk, hazard and MSDS, CAS,cas number,Use,cas no may also be you need. ... Visit ChemicalBook To find more Potassium cyanate(590-28-3) information like chemical properties,Structure,melting point, ... Potassium cyanate. Product Name:. Potassium cyanate. CAS No.. 590-28-3. Chemical Name:. Potassium cyanate. CBNumber:. CB6853893 ...
CyanidePotassiumCarbon dioxideEstersCompoundsThioAmmoniumBased on cyanate esterResinsNitrogenPhenyl cyanateSuggest that cyanateUreaArylABSTRACTMonomersInhibitionDifunctional cyanateReactionThiocyanateAcetic AcidAnionIsocyanatesInorganicNucleophilic substitutionWater solubleReactivitySaltsSynthesisReactionsPowderEscherichiaDegradationCyanaseGlutathioneAcidToxicCompoundComplexesChemical2020MonomerSensitivity
Cyanide8
- Use of this fact is made in cyanide decontamination processes where oxidants such as permanganate and hydrogen peroxide are used to convert toxic cyanide to safer cyanate. (wikipedia.org)
- 1965). 18, 424-428, doi:10.1107/S0365110X65000944 J. Milbauer: Bestimmung und Trennung der Cyanate, Cyanide, Rhodanide und Sulfide in Fresenius' Journal of Analytical Chemistry 42 (1903) 77-95, doi:10.1007/BF01302741. (wikipedia.org)
- Use of this fact is made in cyanide decontamination processes where a permanganate oxidation converts toxic cyanide to safer cyanate. (hmdb.ca)
- Therefore a distinction between free, WAD and total cyanide forms (other compounds such as cyanates or thiocyanates are also present) in tailings water is useful for legal regulatory purposes [8]. (thefreedictionary.com)
- Potassium cyanate, KCNO, white solid, soluble, formed along with lead metal by reaction of potassium cyanide and lead monoxide solids upon heating. (chemicalbook.com)
- Cardiac blood was collected for cyanide and cyanate analysis. (duq.edu)
- The findings of increased cyanate levels in 2-CAN, combined with the hind-limb paralysis data suggest that cyanate, not cyanide, is the toxic metabolic product resulting from acute 2-CAN exposure. (duq.edu)
- This ebook Silver Azide, Cyanide, Cyanamides, Cyanate, Selenocyanate happens examples to organisation and tree becoming in statistical administrator considered by a dropdown of economists and structure companies and solid ' changes. (crowd-estate.de)
Potassium21
- Na2CO3 + 2 OC(NH2)2 → 2 NaNCO + CO2 + 2 NH3 + H2O A similar reaction is used to make potassium cyanate. (wikipedia.org)
- Material Safety Data Sheet for potassium cyanate Greenwood, Norman N. (wikipedia.org)
- It can be made by the reaction of potassium cyanate with silver nitrate in aqueous solution, from which it precipitates as a solid. (wikipedia.org)
- What made you want to look up potassium cyanate ? (merriam-webster.com)
- The ' Global and Chinese Potassium cyanate Industry, 2011-2021 Market Research Report ' is a professional and in-depth study on the current state of the global Potassium cyanate industry with a focus on the Chinese market. (marketresearch.com)
- The report provides key statistics on the market status of the Potassium cyanate manufacturers and is a valuable source of guidance and direction for companies and individuals interested in the industry.Firstly, the report provides a basic overview of the industry including its definition, applications and manufacturing technology. (marketresearch.com)
- Through the statistical analysis, the report depicts the global and Chinese total market of Potassium cyanate industry including capacity, production, production value, cost/profit, supply/demand and Chinese import/export. (marketresearch.com)
- The report then estimates 2016-2021 market development trends of Potassium cyanate industry. (marketresearch.com)
- In the end, the report makes some important proposals for a new project of Potassium cyanate Industry before evaluating its feasibility. (marketresearch.com)
- Overall, the report provides an in-depth insight of 2011-2021 global and Chinese Potassium cyanate industry covering all important parameters. (marketresearch.com)
- 5.2 Market Competition of Potassium cyanate Industry by Country (USA, EU, Japan, Chinese etc. (marketresearch.com)
- A similar reaction is used to make potassium cyanate . (marbk-65d.win)
- Potassium cyanate is used as chemical intermediate and as a weed killer. (chemicalbook.com)
- Exotic Associates started its operations as manufacturer of sodium cyanate and potassium cyanate in 1995. (cyanate.net)
- It has today, established its position as the major sodium cyanate and potassium cyanate provider in bulk to various herbicide & dye-intermediates manufacturing units in India. (cyanate.net)
- Exotic Associates is exporters of sodium cyanate, potassium cyanate and different grades of cyanates in volumes to cater to the demands of its customers in india and around the world. (cyanate.net)
- As a leading manufacturer of sodium cyanate and potassium cyanate from India, Exotic Associates is ready to fulfill your cyanates requirements in different qualities, and in small or bulk quantities. (cyanate.net)
- We undertake custom synthesis and manufacture sodium and potassium cyanate on exclusive basis and under secrecy agreement. (cyanate.net)
- Please enquire and contact us for further information on potassium cyanate and sodium cynate mentioning your specific requirements. (cyanate.net)
- Especially-Potassium Cyanate) In the manufacture of Pharmaceuticals being used in the treatment of Parkinson's disease, Diabetes, Epilepsy and Others. (cyanate.net)
- Note: Potassium Cyanate, due to its higher solubility value, gives better result in different types of chemical reactions. (cyanate.net)
Carbon dioxide5
- Silver cyanate reacts with nitric acid to form silver nitrate, carbon dioxide, and ammonium nitrate. (wikipedia.org)
- The cyn operon includes the gene cynS, encoding cyanase, which catalyzes the reaction of cyanate with bicarbonate to give ammonia and carbon dioxide. (asm.org)
- In particular cyanate can be decomposed to carbamate (ammonia) and carbon dioxide. (hmdb.ca)
- Alternately the same enzyme can be used to synthesize cyanate using carbamate and carbon dioxide. (hmdb.ca)
- Cyanase is an enzyme found in bacteria and plants that catalyses the reaction of cyanate with bicarbonate to produce ammonia and carbon dioxide in response to extracellular cyanate [ PMID: 10801492 ]. (ebi.ac.uk)
Esters7
- Compounds that contain the group −O−C≡N, are known as a cyanates, or cyanate esters. (wikipedia.org)
- investigate the combination of cyanate esters with polyphenylenes through a Diels-Alder reaction. (rsc.org)
- Hyperbranched polyphenylenes and cyanate esters are two unique classes of materials that possess complementary properties. (rsc.org)
- Cyanate esters are also well renowned for their thermal stability as thermosetting materials. (rsc.org)
- Thus, the resulting materials simultaneously possess the strengths of polyphenylene polymers while retaining the curing potential of the cyanate esters but at only the tenth of the activation energy of pure cyanate monomers, lowering the risk factors during handling. (rsc.org)
- However, under these conditions the trimerisation reaction of cyanate esters also takes place. (rsc.org)
- Phenolic, epoxy resins, cyanate esters, polyester resins, polyurethane and vinyl ester resins among others are the types of thermosets. (researchbeam.com)
Compounds7
- Giles, D. E. (1977) Kinetics and mechanisms of reactions of cyanates and related compounds, in Cyanates and Their Thio Derivatives: Volume 1 (1977) (ed S. Patai), John Wiley & Sons, Ltd., Chichester, UK. (wiley.com)
- In organic compounds the cyanate group is a functional group. (hmdb.ca)
- belongs to the class of organic compounds known as cyanates. (hmdb.ca)
- Accordingly, the present invention also provides a process for preparing 3-heterocyclyl-substituted phenylsulfamoylcarboxamides starting with phenyl iso(thio)cyanates I. Contrary to expectation, the compounds I according to the invention are stable compounds which are readily prepared, even on an industrial scale. (allindianpatents.com)
- The cytotoxic activity of Iso(thio) cyanate derivatives and some new organophosphorus compounds were determined,using MTT assay against human hepatocellular carcinoma (HepG2) and adenocarcinoma breast (MCF-7) incomparison with the reference drug 5-flurouracil. (bvsalud.org)
- Then, this text presents the chemistry and chemical properties of the elements, specifically discussing topics such as the reactions of the metals, intermetallic compounds, hydrides, halides, cyanides and cyanates, and oxides and peroxides. (elsevier.com)
- Two compounds that inhibit the sickling of erythrocytes in vitro are sodium cyanate and glyceraldehyde. (elsevier.com)
Thio11
- Fluorescence iso thio cyanate (FITC), procured from M/s Sigma, USA, was used, and Fluorescence Microscope model BH2 RFL1 PM 10 ADS, (OLYMPUS, Japan) was used to view the detection of virus as fluorescence. (thefreedictionary.com)
- A process for preparing phenyl iso (thio)cyanates of the formula I in which a compound of the formula II or its HCl adduct is reacted with a phosgenating agents. (allindianpatents.com)
- Moreover,the invention relates to the use of the pheny1 iso (thio)cyanates for preparing crop protection agents. (allindianpatents.com)
- The invention also relates to bifunctional phenyl iso(thio)cyanates. (allindianpatents.com)
- Common to all of the processes described is that the phenyl iso(thio)cyanates used do not carry an acylsulfonamide group. (allindianpatents.com)
- Against this background, both the preparation of phenyl iso (thio) cyanates which, in the same molecule, also carry a reactive acylsulfonamide function and their isolation - without subsequent intermolecular reactions - have been thought to be impossible. (allindianpatents.com)
- A person skilled in the art would have assumed that, owing to their acidic proton, sulfonamides would react with phenyl iso(thio)cyanates to give sulfonylurea derivatives. (allindianpatents.com)
- Hitherto, no process for the preparation of phenyl iso(thio)cyanates which, as further functional group, carry an acylsulfonamide group has been described. (allindianpatents.com)
- Accordingly, the present invention relates to a process for preparing phenyl iso(thio)cyanates of the formula I which comprises reacting a compound of the formula II or its HC1 adduct with phosgene, thiophosgene or diphosgene (see Scheme 1). (allindianpatents.com)
- The phenyl iso(thio)cyanates I obtainable in high yield by the process according to the invention are useful intermediates for the preparation of crop protection agents, in particular of 3-(triazolidinone)-substituted phenylsulfamoylcarboxamides. (allindianpatents.com)
- In addition, the cytotoxic activity of the iso(thio) cyanates , and malonamic acid methyl ester compound were also investigated. (bvsalud.org)
Ammonium8
- Ammonium cyanate is an inorganic compound with the formula NH 4 OCN. (wikipedia.org)
- Ammonium cyanate shows N-H···N hydrogen bonding, not N-H···O". Journal of the American Chemical Society . (wikipedia.org)
- The conversion of ammonium cyanate into urea. (wikipedia.org)
- German chemist Friedrich Wöhler from ammonium cyanate in 1828 was the first generally accepted laboratory synthesis of a naturally occurring organic compound from inorganic materials. (britannica.com)
- to make the inorganic substance ammonium cyanate. (britannica.com)
- To his complete surprise, he obtained a product that had the same molecular formula as ammonium cyanate but was instead the well-known organic compound urea. (britannica.com)
- It also refers to any salt containing it, such as ammonium cyanate. (wikipedia.org)
- By showing that ammonium cyanate can become urea by an internal re-arrangement of its atoms, without gaining or losing in weight, Wohler furnished one of the first and best examples of isomerism. (thefreedictionary.com)
Based on cyanate ester1
- This disclosure covers a new methodology to produce high performance, high temperature, thermoset resins having shape memory characteristics based on cyanate ester resins. (patentsencyclopedia.com)
Resins1
- Disclosed is the preparation of novel difunctional cyanate monomers with increased aromatic chain length between the cyanate groups and thermosetting resins resulting from the cyclotrimerization of such monomers. (ip.com)
Nitrogen8
- The cyanate ion is an ambidentate ligand, forming complexes with a metal ion in which either the nitrogen or oxygen atom may be the electron-pair donor. (wikipedia.org)
- Cyanate is an ambidentate ligand which can donate the pair of electrons on the nitrogen atom or the oxygen atom, or both. (wikipedia.org)
- However, the crystal structure of silver cyanate shows zigzag chains of nitrogen atoms and silver atoms. (wikipedia.org)
- The nitrogen atoms are each coordinated to two silver atoms, so that there are zigzag chains of alternating silver and nitrogen atoms going in the direction of the monoclinic "b" axis, with the cyanate ions perpendicular to that axis. (wikipedia.org)
- In contrast to the wild-type strain, the growth of the delta cynT strain was inhibited by cyanate, and the mutant strain was unable to degrade cyanate and therefore could not use cyanate as the sole nitrogen source when grown at a partial CO2 pressures (pCO2) of 0.03% (air). (asm.org)
- it was significantly less sensitive to the toxic effects of cyanate and could degrade cyanate and use cyanate as the sole nitrogen source for growth. (asm.org)
- The cyanate ion is an anion consisting of one oxygen atom, one carbon atom, and one nitrogen atom, [OCN], in that order. (hmdb.ca)
- The cyanate ion possesses 1 unit of negative charge, borne mainly by the nitrogen atom. (hmdb.ca)
Phenyl cyanate2
- Aryl cyanates such are phenyl cyanate, C6H5OCN, can be formed by a reaction of phenol with cyanogen chloride, ClCN, in the presence of a base. (wikipedia.org)
- 4. The method for making shape memory polymer of claim 3 wherein said monofunctional cyanate ester monomer is selected from the group consisting of 4-methoxyphenyl cyanate ester, 4-nonylphenyl cyanate, 4-phenylphenyl cyanate, 4-cumylphenol cyanate ester, and phenyl cyanate. (patentsencyclopedia.com)
Suggest that cyanate1
- The results of this study suggest that cyanate neurotoxicity, and perhaps cassava-associated neurodegenerative diseases, are mediated in part by disruption of glutathione homeostasis in neural tissue. (oregonstate.edu)
Urea1
- I'm attempting to make pure calcium cyanate, so I did the urea/ sodium carbonate melt to collect a product of solid off-white sodium cyanate. (sciencemadness.org)
Aryl1
- However, by introducing an aryl ether bond, para or meta, to the cyanate group, wide highly desirable processing windows were demonstrated. (vt.edu)
ABSTRACT1
- abstract = "The diffusion phenomena, including the molecular diffusion processes and the effect of diffusion on the cure kinetics and molecular size distribution, during the curing of a zinc-catalysed cyanate ester resin have been studied. (syr.edu)
Monomers2
- While cyclopentadienone monomers are sometimes challenging to synthesize there is a wide variety of commercial cyanate ester monomers and prepolymers allowing for a high degree of tunability of the resulting resin without changing the cyclopentadienone unit. (rsc.org)
- The second portion of the thesis focused on cyanate ester or polycyanurate networks generated from dicyanate monomers. (vt.edu)
Inhibition4
- kan mutant was found to be much less sensitive to cyanate than the delta cynT mutant at a low pCO2, indicating that bicarbonate depletion due to the reaction of bicarbonate with cyanate catalyzed by cyanase is more deleterious to growth than direct inhibition by cyanate. (asm.org)
- However, a rapid inhibition of protein synthesis in cultured tumor cells can be achieved by reaction of cyanate with the drug-metabolizing system of liver microsomes. (aacrjournals.org)
- Selective inhibition with sodium cyanate of protein synthesis in colon cancer cells. (thefreedictionary.com)
- The disruption of GSH homeotasis, as evidenced by reduced tissue GSH/GSSG ratios, likely results from cyanate-induced inhibition of glutathione reductase activity. (oregonstate.edu)
Difunctional cyanate1
- The resulting compound is heated and reacted with a difunctional cyanate ester resin and cured. (patentsencyclopedia.com)
Reaction3
- AgNO 3 + KNCO → Ag ( NCO ) + K + + NO 3 − {\displaystyle {\ce {{AgNO3}+{KNCO}\rightarrow {Ag(NCO)}+{K+}+{NO3^{-}}}}} Alternatively, the reaction AgNO 3 + H 2 N − C ( O ) − NH 2 → AgNCO + NH 4 NO 3 {\displaystyle {\ce {{AgNO3}+{H2N-C(O)-NH2}\rightarrow {AgNCO}+{NH4NO3}}}} analogous to the reaction used for the industrial production of sodium cyanate, may be used. (wikipedia.org)
- The suppression of tumor protein synthesis is not due to a general toxicity reaction because thymidine incorporation into the DNA of tumor cells is not inhibited by the cyanate metabolite. (aacrjournals.org)
- Different to fully phenylene-based systems which are difficult to analyze by 13 C NMR spectroscopy, the reaction with cyanate results in pyridine and cyanurate structures that can be well identified thus improving the structural characterization of such oligomers. (rsc.org)
Thiocyanate1
- Cyanate may also derive from thiocyanate metabolism (15), because myeloperoxidase catalyzes thiocyanate oxidation in the presence of hydrogen peroxide and then promotes protein carbamylation at inflammation sites (16, 17). (thefreedictionary.com)
Acetic Acid2
- To remove contaminants such as sodium carbonate, the crude sodium cyanate was dissolved in 50% hot acetic acid. (sciencemadness.org)
- The acetic acid addition was my own idea, since I thought it would dissolve all the contaminants mentioned in the patent without affecting the cyanate/ cyanurate. (sciencemadness.org)
Anion2
- It is an isomer of the much less stable fulminate anion [C−≡N+O]−. A cyanate ester is an organic compound containing the cyanate group. (wikipedia.org)
- Space-filling model of the cyanate anion. (marbk-65d.win)
Isocyanates1
- Organic cyanates are called isocyanates when there is a C−NCO bond and cyanates when there is a C−OCN bond. (marbk-65d.win)
Inorganic1
- Sodium-cyanate, a herbicide belonging to the group Inorganic is used for controlling weeds. (wordpress.com)
Nucleophilic substitution2
- In nucleophilic substitution reactions cyanate usually forms an isocyanate. (wikipedia.org)
- The cyanate ion is an ambident nucleophile in nucleophilic substitution because it can react to form an alkyl cyanate R-OCN (exception) or an alkyl isocyanate R-NCO (rule). (hmdb.ca)
Water soluble1
- Sodium cyanate is water soluble but not very .11.6g in 100 ml. (sciencemadness.org)
Reactivity2
- It was demonstrated that electron withdrawing characteristics, such as carbonyl, sulfone, or phenylphosphine oxide increased the reactivity of the cyanate group above the melting point of the monomer. (vt.edu)
- Hence the reactivity of cyanate towards the thiol group of papain, as determined by extrapolation to zero substrate concentration, is 3000 times greater than the reactivity of the thiol group of free cysteine. (tue.nl)
Salts1
- On second thought I was probably wrong and the calcium cyanate/ cyanurate is decently soluble considering the properties of similar salts. (sciencemadness.org)
Synthesis2
- Sodium cyanate, a selective inhibitor of protein synthesis in animal tumors in situ , has no comparable effect when added to tumor cells in culture. (aacrjournals.org)
- Procedures are described for the induction, preparation, and testing of an active cytochrome P-450 fraction which converts cyanate to a short-lived dialyzable metabolite that selectively inhibits amino acid incorporation in tumor cells without a corresponding effect on protein synthesis in normal cells. (aacrjournals.org)
Reactions1
- Consequently, it can be clearly seen that the consumption rate of both cyanate groups and EP groups in existence of PESC is faster than that of the neat CE/EP blend, which indicates that the presence of PES-C could accelerate both trimerization reactions of cyanate groups and copolymerization between cyanate groups and EP groups. (thefreedictionary.com)
Powder1
- Silver cyanate is a beige to gray powder. (wikipedia.org)
Escherichia2
Degradation1
- Even though most of the information known about the function(s) of carbonic anhydrase primarily relates to its role in cyanobacterial CO(2) fixation, the prokaryotic enzyme has also been shown to function in cyanate degradation and the survival of intracellular pathogens within their host. (nih.gov)
Cyanase1
- Cyanate can be decomposed by the enzyme cyanate lyase (or cyanase), which is found in bacteria and plants. (hmdb.ca)
Glutathione3
- Sodium cyanate alters glutathione homeostasis in rodent brain: relationship to neurodegenerative diseases in protein-deficient malnourished populations in Africa. (oregonstate.edu)
- This study investigates the effect of sodium cyanate on glutathione (GSH) homeostasis in rodent brain and liver in vitro and in vivo. (oregonstate.edu)
- Brain glutathione reductase activity was dose-dependently inhibited, while glutathione peroxidase activity was not affected by sodium cyanate. (oregonstate.edu)
Acid2
- The acid step might have decomposed your cyanate. (sciencemadness.org)
- Isocyanic acid , HNCO, is produced when a cyanate salt is acidified. (marbk-65d.win)
Toxic2
- The cyanate ion is relatively non-toxic in comparison with cyanides. (hmdb.ca)
- The protective effect of melatonin has been documented also against other toxic substances that elicit increased oxidative potential, such as ammonia (Lena & Subramanian, 2003), cyanate (Melchiori et al. (thefreedictionary.com)
Compound1
- For example, this structure is found in the compound [Ni2(NCO)2(en)2][BPh4]2. (wikipedia.org)
Complexes1
- In N-bonded cyanate complexes the M−NCO unit sometimes has a linear structure, but with O-bonded cyanate the M−O−C unit is bent. (wikipedia.org)
Chemical1
- Sodium cyanate, a neurotoxic chemical in rodents, primates and humans, is implicated in neurodegenerative disorders in protein-deficient populations subsisting in parts of Africa on the cyanogenic plant cassava. (oregonstate.edu)
20204
- Marketresearchdata.net has added a new report on Sodium-cyanate: Global Product Intelligence (2015-2020). (wordpress.com)
- The report predicts the market size of Sodium-cyanate: Global Product Intelligence (2015-2020) is expected to reach XX billion by 2020. (wordpress.com)
- The report covers the analysis of global as well as regional markets of Sodium-cyanate: Global Product Intelligence (2015-2020). (wordpress.com)
- The report " Sodium-cyanate: Global Product Intelligence (2011-2020) " provides market intelligence on the different segments of the agrochemical, based on type of formulation, crop type, pest, and geography. (wordpress.com)
Monomer1
- 3. The method for making shape memory polymer of claim 2 wherein said monofunctional cyanate ester monomer has only one cyanate ester moiety per molecule. (patentsencyclopedia.com)
Sensitivity1
- When HeLa cells are exposed to sodium butyrate, a substance reported to suppress the malignant phenotype in several tumor cell lines, they lose their sensitivity to the cyanate metabolite. (aacrjournals.org)