ACP - Metrics - Physico-chemical characterization of SOA derived from catechol and guaiacol - a model substance for the...
Physico-chemical characterization of SOA derived from catechol and guaiacol - a model substance for the aromatic fraction of ... DRIFTS Studies on the Role of Surface Water in Stabilizing Catechol-Iron(III) Complexes at the Gas/Solid Interface J. Tofan- ... DRIFTS Studies on the Role of Surface Water in Stabilizing Catechol-Iron(III) Complexes at the Gas/Solid Interface J. Tofan- ... of Light Absorbing Soluble Secondary Organics and Insoluble Polymeric Particles from the Dark Reaction of Catechol and Guaiacol ...https://www.atmos-chem-phys.net/11/1/2011/acp-11-1-2011-metrics.html
Análise de compostos organoclorados em efluentes de branqueamento de celulose por cromatografia gasosa com colunas capilares
... guaiacol (993); catechol (1192); 4,5,6-trichologuaiacol (1623); 3 , 4- di c h 1 o r o cate cho 1 (1668}; 3,4,5- ... guaiacol catechol; 3,4-dichlorocatecho1 (288 119!1); 4, 5, 6 5-trichlorocate(hol (5885 11911); pentachlorophenol (21 l-1911) ... guaiacol; catecol; 3,4-diclorocatecol (288 ug/l); triclorocatecol (5885 ug(l); tetraclorocatecol (16461 ug/l); 4,5,6- ...http://www.lume.ufrgs.br/handle/10183/130109
Renewable bio-phenols from in situ and ex situ catalytic pyrolysis of Douglas fir pellet over biobased activated carbons -...
The chemical compounds in bio-oil can be classified into phenols, furfurals, guaiacols, catechols, ketones and other oxygenates ... 6 Plots of main effects on phenol (a), furfural (b), and guaiacol (c) yield in bio-oil from in situ catalytic pyrolysis.. ... High guaiacols content (5.3-35%) was noticed for most of bio-oils from ex situ upgrading. The actual concentrations of phenols ... The calibrated values for phenols, furfurals, and guaiacol were obtained for all bio-oil samples and were reported in mg ml−1 ...https://pubs.rsc.org/en/content/articlehtml/2018/se/c7se00607a
Starguar™ | Solvay
Thanks to our historical expertise, Rhodiantal® Original is manufactured from catechol through guaiacol to IBCH (isobornyl ... Catechol. Catechol, also known as pyrocatechol or 1,2-dihydroxybenzene, is an organic compound essentially used as building ...https://www.solvay.com/en/products/brands/starguar
Repel-O-Tex® CRYSTAL | Solvay
Thanks to our historical expertise, Rhodiantal® Original is manufactured from catechol through guaiacol to IBCH (isobornyl ... Catechol. Catechol, also known as pyrocatechol or 1,2-dihydroxybenzene, is an organic compound essentially used as building ...https://www.solvay.com/en/products/brands/repel-o-tex-crystal
I. Reductive decomposition with metallic sodium in liquid ammonia of 1-(4-hydroxyphenyl)-2-(2′-methoxyphenoxy)propane-1,3-diol ...
... and the presence in the decomposition products of guaiacol, catechol, 4-hydroxyphenylpropane, 1-(4-hydroxyphenyl)propane-1-ol ... Decomposition Product Guaiacol Liquid Ammonia Dimethyl Sulfate Metallic Sodium S. M. Kirov Belorussian Technologic Institute. ...https://link.springer.com/article/10.1007/BF00567033
Influence of RANEY Nickel on the Formation of Intermediates in the Degradation of Lignin
... guaiacol and catechol. Phenol is a secondary or even tertiary product derived from guaiacol or catechol [23, 24]. At 603 K long ... Experiments with catechol and guaiacol showed that RANEY Nickel helps convert catechol into phenol (see Figure 5) in the ... The yield of guaiacol (CG/CL,0) is thus calculated using the following equation: ... The yield of guaiacol within the liquefaction of lignin will depend not only on its degradation to catechol, in principle, but ...https://www.hindawi.com/journals/ijce/2012/589749/
Food preservation - Wikipedia
Smoke deposits a number of pyrolysis products onto the food, including the phenols syringol, guaiacol and catechol. Salt ...https://en.wikipedia.org/wiki/Food_preservation
Influence of RANEY Nickel on the Formation of Intermediates in the Degradation of Lignin
... catechol and guaiacol, was studied. The cleavage of the ether bonds, which are abundant in the molecular structure of lignin, ... The main product from hydrodeoxygenation of guaiacol with RANEY Nickel was cyclohexanol. Reaction mechanism and kinetics of the ... especially catechol. RANEY Nickel was found to be an adequate catalyst for hydrodeoxygenation. Although it does not influence ... the cleavage of ether bonds, RANEY Nickel favours the production of phenol from both lignin and catechol. ...https://www.hindawi.com/journals/ijce/2012/589749/abs/
Dividends from wood research
to 310 C. were: guaiacol, catechol, methyl and ethyl-guaiacols,. methyl and ethyl-catechols, phenol, and p-cresol. Maximum. ... Mixtures of catechols, guatacols and other phenols were. resolved by gas chromatography on column that used Apiezon L,. Apiezon ...http://ufdc.ufl.edu/AA00013728/00001
US3092464A - Blood detecting composition - Google Patents
... catechol, guaiacol, pyrogallol, etc., may be used. ...https://patents.google.com/patent/US3092464A/en
Identification of white campion (Silene latifolia) guaiacol O-methyltransferase involved in the biosynthesis of veratrole, a...
Biochemical analysis showed that both S. latifolia guaiacol O-methyltransferase1 (SlGOMT1) & S. latifolia guaiacol O- ... but the proteins they encode did not methylate guaiacol, consistent with the lack of veratrole emission in the flowers of this ... methyltransferase2 (SlGOMT2) encode proteins that catalyze the methylation of guaiacol to form veratrole. A large Km value ... In tomato, both catechol and guaiacol have been detected in the fruit, but in S. latifolia flowers, only guaiacol emission, but ...https://bmcplantbiol.biomedcentral.com/articles/10.1186/1471-2229-12-158
Polyol and utilization thereof - Patent # 5198475 - PatentGenius
... catechol, guaiacol, bisphenol A or bisphenol S withaldehydes such as formaldehyde or acetaldehyde, .alpha.,.alpha.'- ...http://www.patentgenius.com/patent/5198475.html
Methods Manual | NCASI, the Environmental Resource for the Forest Products Industry
Methods Manual (02.B.003): Method PC-97 Determination of Phenol and Catechol in Weak and Strong Black Liquors, Wastewater ... Method CP 86.07 is used to determine and confirm the concentrations of selected chlorinated phenols, chlorinated guaiacols, ... chlorinated catechols, chlorinated benzaldehydes (i.e., vanillins and syringaldehydes), and trichlorosyringol in extracts ...http://www.ncasi.org/Programs/Analytical-Resources-and-Methods/Resources/Methods-Manual/Index.aspx
Methylation, by catechol-O-methyltransferase, of an ortho-catechol, resulting in a guaiacol, would explain the observed ... Thus, there are possible reactive metabolites, even though only the catechol is obvious. Catechols can be oxidized to quinines ... 4). The formation of a catechol from a fully brominated aromatic compound is not obvious, since formation of an areneoxide ... The extent and mechanism of absorption of decaBDE, as well as the mechanism of metabolite formation, e.g., guaiacol metabolites ...http://dmd.aspetjournals.org/content/31/7/900
Ritonavir | p53 modulates acquired resistance to EGFR inhibitors
... guaiacol, catechol and vanillyl alcoholic beverages) and aldehydes (vanillin, syringic aldehyde and 4-hydroxylbenzaldehyde) 61 ...http://boothampitheatre.com/tag/ritonavir/
Catechol - Wikipedia
Guaiacol is prepared by methylation of catechol and is then converted to vanillin on a scale of about 10M kg per year (1990). ... catechol was listed as pyrocatechol. In 1879, the Journal of the Chemical Society recommended that catechol be called "catechol ... Its methyl ether derivative, guaiacol, converts to catechol via hydrolysis of the CH3-O bond as promoted by hydriodic acid. ... 3-Trans-Isocamphylcyclohexanol, widely used as a replacement for sandalwood oil, is prepared from catechol via guaiacol and ...https://en.wikipedia.org/wiki/Catechol
Recent Developments in Using Advanced Sequencing Technologies for the Genomic Studies of Lignin and Cellulose Degrading...
... catechol, gentisate, guaiacol, p-coumarate, protocatechuate, ferulate, producing several commercially valuable products like ... YS-1r strain also codes for enzymes like phenol 2 monooxygenase, 4-hydroxybenzoate-3-monooxygenase, catechol-2,3-dioxygenase, ... and for the catechol branch of the ketoadipate pathway. Genome sequence of MBES04 also revealed information about the genes ... catechol 2, 3-dioxygenase, protocatechuate 3, 4-dioxygenase, and gentisate 1,2-dioxygenase were highly detected in YS-1P genome ...http://www.ijbs.com/v12p0156.htm
Guaiacol at Thomas Scientific
Guaiacol natural, =98%, FG, Guaiacol, 2-Methoxyphenol, 98+%, 3-(2-Methoxyphenoxy)-1,2-propanediol, 99+%, Guaiacol oxidation ... Synonym(s): Catechol monomethyl ether, Guaiacol Formula: C7H8O2 Formula weight: 124.14 Purity: 98+% CAS Number: 90-05-1 ... Guaiacol MilliporeSigma. European Pharmacopoeia (EP) Reference Standard Synonym(s): 2-Methoxyphenol; Catechol monomethyl ether ... Guaiacol oxidation indicator MilliporeSigma. Synonym(s): 2-Methoxyphenol; Catechol monomethyl ether; Pyrocatechol monomethyl ...https://www.thomassci.com/scientific-supplies/Guaiacol
Characterization of thiol-conjugated metabolites of ginger components shogaols in mouse and human urine and modulation of the...
0/(10)-shogaol; 0/(8)-shogaol; 0/Antineoplastic Agents, Phytogenic; 0/Catechols; 0/Sulfhydryl Compounds; 6JKA7MAH9C/Guaiacol; ... Guaiacol / analogs & derivatives, chemistry, urine. HCT116 Cells / drug effects, metabolism. Humans. Male. Mice. Mice, Inbred ... Catechols / pharmacokinetics, pharmacology*, urine*. Cell Line, Tumor. Female. Ginger / chemistry*, metabolism. Glutathione / ...http://www.biomedsearch.com/nih/Characterization-thiol-conjugated-metabolites-ginger/23322393.html
Smoke - Wikipedia
... guaiacol, syringol, catechol, and cresols), carboxylic acids (formic acid, acetic acid, etc.). The visible particulate matter ... Guaiacol and its derivatives are products of pyrolysis of lignin and are characteristic of wood smoke; other markers are ... Hardwood vs softwood smokes differ in the ratio of guaiacols/syringols. Markers for vehicle exhaust include polycyclic aromatic ...https://en.wikipedia.org/wiki/Smoke
Hydrothermally stable Ru/HZSM-5-catalyzed selective hydrogenolysis of lignin-derived substituted phenols to bio-arenes in water...
... guaiacols, and syringols into bioaromatic hydrocarbons in a one-pot aqueous-phase process in moderate conditions (240 °C, 2 bar ... Moreover, routes via the hydrogenation of guaiacol, as well as the hydrogenolysis of catechol and anisole, have been rationally ... catechol rather than phenol is formed as the major product from guaiacol over Ru/HZSM-5. However, in the highly diluted aqueous ... The selective cleavage of guaiacol at the C-O position of the Csp3-OAr group is influenced by space hindrance and the ...http://pubs.rsc.org/en/content/articlelanding/2016/gc/c6gc01971d/unauth
Synthesis And Characterization Dumbbell Shaped Copolymers Ethylene Oxide Structure Res File Molecular Weight Ethene Formula...
Guaiacol is a phenolic compound with a methoxy group and is the monomethyl ether of catechol. Guaiacol is readily oxidized by ... Guaiacol is used in traditional dental pulp sedation, and has the property of inducing cell proliferation; guaiacol is a potent ... Guaiacol is a phenolic natural product first isolated from Guaiac resin and the oxidation of lignin. It is a yellowish aromatic ...http://www.sentinellemedical.com/7991mutvoy/8051fQNPpx/
ACPD - Precursors and formation of secondary organic aerosols from wildfires in the Euro-Mediterranean region
Amongst the VOCs, the main contributors to SOA formation are phenol, benzene and catechol (47%), USC>6 compounds (23%), and ... guaiacol and structurally assigned and unassigned compounds with at least 6 carbon atoms per molecule (USC>6). This mechanism H ... The aromatic VOCs included in the mechanism are toluene, xylene, benzene, phenol, cresol, catechol, furan, naphthalene, ...https://www.atmos-chem-phys-discuss.net/acp-2018-1065/
... catechol (CHEBI:18135). guaiacol (CHEBI:28591) has functional parent catechol (CHEBI:18135). guaiacol sulfate (CHEBI:133460) ... catechol (CHEBI:18135) has role plant metabolite (CHEBI:76924) catechol (CHEBI:18135) is a catechols (CHEBI:33566) catechol ( ... catechol (CHEBI:18135) has role allelochemical (CHEBI:62215) catechol (CHEBI:18135) has role genotoxin (CHEBI:50902) ... aspalathin (CHEBI:79078) is a catechol (CHEBI:18135). caffeyl alcohol (CHEBI:86071) is a catechol (CHEBI:18135). droxidopa ( ...http://www.ebi.ac.uk/chebi/searchId.do?chebiId=CHEBI:18135