An arsenical that has been used as a dermatologic agent and as an herbicide.

Interference in the quantitation of methylated arsenic species in human urine. (1/89)

The aim of this paper is to report on the presence of chemical interferences in the quantitation of methylated arsenic species in human urine when using a method based on selective volatile arsine species generation, chromatographic separation, and hydride generation atomic absorption spectrometry (HGAAS) detection. An abnormal profile of methylated arsenic species characterized by the absence of the peak corresponding to dimethylarsinic acid (DMA) was observed in urine from some individuals exposed to arsenic via drinking water and living in rural communities of northwestern Argentina. The absence of this peak persisted even after the addition of known amounts of DMA to the samples. However, the DMA peak appeared after urine digestion with hydrochloric acid (2M). Samples showing interferences were provided by individuals who had mate consumption and coca-leaf chewing habits. Because the relative proportions of methylated arsenic species present in urine have been used to evaluate the efficiency of the methylation process, interferences in the formation or detection of methylarsines may cause underestimation of As exposure and also lead to erroneous conclusions about relative biomethylation efficiencies. Therefore, we recommend that urine samples should be digested with 2M HCl before performing speciation analysis using HGAA techniques. Further studies on the impact of this type of interferences on other arsenic speciation methods are also required.  (+info)

Determination of monomethylarsonic acid and dimethylarsinic acid in urine by liquid chromatography-tandem mass spectrometry. (2/89)

A method for the simultaneous measurement of monomethylarsonic acid (MMA) and dimethylarsinic acid (DMA) in human urine using liquid chromatography-tandem mass spectrometry with electrospray ionization (LC-ES-MS-MS) was developed. The multiple reaction monitoring mode (MRM) was used for quantitation. The protonated molecule ions (m/z 141.0 for MMA and m/z 139.0 for DMA) were selected as precursor ions, and the same fragment ion AsO+ (m/z 91.1) was monitored as the product ion. A two-step liquid-liquid extraction of MMA and DMA from urine provided recoveries of 92-100%. The coefficients of variation were lower than 7% for the within-day precision and lower than 11% for the between-day precision. The limit of quantitation was 25 microg/L as As for the two analytes. The assay was linear over the range of 25-800 microg/L.  (+info)

Urinary bladder carcinogenicity of dimethylarsinic acid in male F344 rats. (3/89)

The present study was conducted to determine the carcinogenicity of dimethylarsinic acid (DMA) administered to male F344 rats in a 2 year bioassay. A total of 144 rats (10 weeks old at the start) were divided into four groups of 36 rats each. Groups 1-4 received DMA (purity 100%) at concentrations of 200, 50, 12.5 and 0 p.p.m. in the drinking water, respectively, for 104 weeks. From weeks 97 to 104, urinary bladder tumors were observed in 12 of 31, eight of 31 and none of 33 in groups 1-3, respectively. No bladder tumors were observed in group 4. The present study demonstrated that long-term p. o. administration of DMA induced urinary bladder carcinomas in male F344 rats. Therefore, the results indicate that DMA is carcinogenic for the rat urinary bladder, which may be related to the human carcinogenicity of arsenicals.  (+info)

Crystal structure of human glyoxalase II and its complex with a glutathione thiolester substrate analogue. (4/89)

BACKGROUND: Glyoxalase II, the second of two enzymes in the glyoxalase system, is a thiolesterase that catalyses the hydrolysis of S-D-lactoylglutathione to form glutathione and D-lactic acid. RESULTS: The structure of human glyoxalase II was solved initially by single isomorphous replacement with anomalous scattering and refined at a resolution of 1.9 A. The enzyme consists of two domains. The first domain folds into a four-layered beta sandwich, similar to that seen in the metallo-beta-lactamases. The second domain is predominantly alpha-helical. The active site contains a binuclear zinc-binding site and a substrate-binding site extending over the domain interface. The model contains acetate and cacodylate in the active site. A second complex was derived from crystals soaked in a solution containing the slow substrate, S-(N-hydroxy-N-bromophenylcarbamoyl)glutathione. This complex was refined at a resolution of 1.45 A. It contains the added ligand in one molecule of the asymmetric unit and glutathione in the other. CONCLUSIONS: The arrangement of ligands around the zinc ions includes a water molecule, presumably in the form of a hydroxide ion, coordinated to both metal ions. This hydroxide ion is situated 2.9 A from the carbonyl carbon of the substrate in such a position that it could act as the nucleophile during catalysis. The reaction mechanism may also have implications for the action of metallo-beta-lactamases.  (+info)

Effects of dietary dimethylarsinic acid on the urine and urothelium of rats. (5/89)

Dimethylarsinic acid (DMA), fed to rats for 2 years, produced bladder hyperplasia and tumors at doses of 40 and 100 p.p.m., more in females than males. No urothelial proliferation was seen in mice. Our objectives were to investigate the mode of action of bladder tumor formation, evaluate the dose-response and the role of diet and to determine if the urothelial effects were reversible. The study included groups of female F344 rats fed DMA in Purina 5002 diet at doses of 0, 2, 10, 40 or 100 p.p.m. for 10 weeks; two groups of females fed DMA (0 and 100 p.p.m.) in Altromin 1321 for 10 weeks; two groups of males fed DMA (0 and 100 p.p.m.) in Purina 5002 for 10 weeks; a female high-dose recovery group (100 p.p.m. in Purina 5002 diet for 10 weeks followed by control diet for 10 weeks); and two female groups (0 and 100 p.p.m.) in Purina diet for 20 weeks. Urothelial toxicity and hyperplasia were detected by light and scanning electron microscopy (SEM), and the bromodeoxyuridine labeling index was increased in the female 40 and 100 p.p.m. groups. The effects were less in males, but were similar in females fed DMA in Altromin 1321. SEM detected no abnormal urinary solids related to treatment in any group. Urinary calcium was increased in the females fed 40 and 100 p.p.m. in Purina diet, despite overall urinary dilution. Calcification was increased in kidneys of female rats fed Purina diet. The urothelial effects of DMA were reversible. The findings support a non-DNA reactive mechanism for DMA rat bladder carcinogenicity related to urothelial toxicity and regeneration. The toxicity is probably not due to urinary solids. The toxicity and regeneration are produced in a dose-responsive manner in female rats, are greater in female than in male rats, and are reversible.  (+info)

Simple and rapid determination of Gtpase activity by capillary electrophoresis without radioisotope. (6/89)

In order to determine guanosine-5'-triphosphatase (GTPase) activity, we developed a simple, rapid and reliable method that utilizes capillary electrophoresis without radioisotope. Tubulin-GTPase was used for simple measurement of GTPase activity utilizing capillary electrophoresis. Tubulin, a component of microtubules, was incubated with guanosine-5'-triphosphate (GTP) in 100 mM 2-(N-morpholino) ethanesulfonic acid (MES) buffer (pH 6.5). Guanosine-5'-diphosphate (GDP) was determined as the hydrolyzed product of GTP. Guanosine-5'-monophosphate, GDP and GTP in the filtrate of the mixture were clearly separated using 10 mM MES buffer (pH 6.5) (migration time, 3.8, 5.5 and 7.2 minutes, respectively) with a fused-silica capillary column. The quantification of GDP was based on the peak area, which increased linearly with the concentration of GDP from 1 to 50 microM (r2=0.995). The peak area and migration time had good reproducibility; the intra-assay coefficient of variation (n=6) was 1.3% for peak area and 0.6% for migration time. As an application of this method, we examined the effect of dimethylarsinic acid, an effective antimitotic agent, on tubulin-GTPase. Dimethylarsinic acid inhibited tubulin-GTPase activity in a dose-dependent manner. The inhibition was not complete and the maximum decrease of the activity was about 50% at 200 microM dimethylarsinic acid. Thus, since this method is clean, simple and rapid, its application to the study of various GTPase proteins is expected to be useful.  (+info)

Urothelial cytotoxicity and regeneration induced by dimethylarsinic acid in rats. (7/89)

Inorganic arsenic is a known human carcinogen of the skin and respiratory tract. Epidemiologic evidence indicates that it is also carcinogenic to the urinary bladder and other internal organs. Lack of an animal model has limited progress on understanding the mechanism of arsenic carcinogenesis. It was recently reported that high doses of an organic arsenical, dimethylarsinic acid (DMA), increased urinary bladder tumors in rats when administered in the diet or in the drinking water for 2 years, with the female being more sensitive than the male. We previously showed that high doses of DMA (40 or 100 ppm of the diet) fed for 10 weeks increased urothelial cell proliferation in the rat. Treatment with DMA also increased renal calcification and increased urinary calcium concentration. In 2 experiments, we examined the urothelial proliferative effects of treatment with 100 ppm DMA in the diet in female F344 rats for 2 and 10 weeks and for 6 and 24 h, and 3, 7, and 14 days. Cytotoxic changes in the urothelium were evident by SEM as early as 6 h after treatment was begun. Foci of cellular necrosis were detected after 3 days of treatment, followed by widespread necrosis of the urothelium after 7 days of treatment. The bromodeoxyuridine (BrdU) labeling index was not increased until after 7 days of treatment, suggesting that administration of DMA results in cytotoxicity with necrosis, followed by regenerative hyperplasia of the bladder epithelium. Although the rat provides an animal model to study the urothelial effects of DMA, the relevance of this finding to inorganic arsenic carcinogenesis in humans must be extrapolated cautiously, due to the high doses of DMA necessary to produce these changes in the rat and the differences in metabolism of arsenicals in rodents, especially rats, compared to humans.  (+info)

The perturbation of thrombin binding to human platelets by anions. (8/89)

Thrombin binds with high affinity to specific cell-surface receptors on washed human platelets. We present experiments indicating that thrombin binding correlates withe the release reaction when binding is perturbed by anions. Marked differences in the affinity of human 125I-thrombin for platelets wer observed in various isotonic buffers at pH 7.4. At low concentrations of thrombin (0.001-0.01 U/ml), binding was 5-fold greater in Tris-sodium acetate and 12-fold greater in Tris-sodium cacodylate than in Tris-sodium chloride. These anion-induced changes in 125I-thrombin binding paralleled changes in [14C] serotonin release when both parameters were measured in the same platelets. Thus, equivalent release occurred for equal amounts of thrombin bound in all buffers, even though the thrombin concentration varied by up to 30-fold. After approximately 100 molecules of thrombin bound per platelet, complete release occurred in all buffers in 2 min. The effect of anions was specific for the thrombin-receptor interaction as there was no corresponding effect on the binding of erythroagglutinating phytohemagglutinin (E-PHA) to platelets nor on E-PHA or collagen-induced serotonin release. The various anions did not alter platelet morphology as judged by electron microscopy. The anions had no effect on thrombin esterase catalytic activity. In addition, the total number of thrombin receptors per platelet was approximately the same in all buffers. Thus anions alter the affinity between platelet thrombin receptors and a site on thrombin distinct from the catalytic site. We conclude that the thrombin receptor is essential for thrombin-induced platelet reactions.  (+info)

Cacodylic acid is an organic compound with the formula (CH3)2AsO2. It is the simplest dialkyl arsenic acid and is classified as a toxic organoarsenic compound. Cacodylic acid was once used in various medical applications, but its use has been largely discontinued due to its high toxicity and environmental concerns.

It's important to note that cacodylic acid is not commonly encountered in modern medicine or clinical practice. Its historical medical uses included as a treatment for some parasitic infections, but it has since been replaced by safer and more effective alternatives. Nowadays, cacodylic acid is primarily used in research and industrial settings, where it serves as a precursor for the synthesis of other organoarsenic compounds.

... is a weak acid with a pKa of around 6.25. Cacodylic acid can be reduced to dimethylarsine , which is a versatile ... "Spectrophotometric determination of the acid dissociation constants for cacodylic acid and p-Nitrophenol at elevated ... Cacodylic acid is an organoarsenic compound with the formula (CH3)2AsO2H. With the formula R2As(O)OH, it is the simplest of the ... sold cacodylic acid and its salts under the Phytar brand name. The variety used in Vietnam (as Agent Blue) was Phytar 560G. " ...
... cacodylic acid is the major As compound. A very unusual composition of organoarsenic compounds was found in deer truffles ( ... including 4-hydroxy-3-nitrobenzenearsonic acid (3-NHPAA or Roxarsone), ureidophenylarsonic acid, and p-arsanilic acid. These ... The monomethylated acid, methanearsonic acid (CH3AsO(OH)2), is a precursor to fungicides (tradename Neoasozin) in the ... dimethylarsinous acid) and (CH3)2As(O)OH (dimethylarsinic acid), which have the oxidation states As(III) and As(V), ...
Cacodylic acid Monosodium methyl arsenate Grund, S. C.; Hanusch, K.; Wolf, H. U. "Arsenic and Arsenic Compounds". Ullmann's ... It is a colorless, water-soluble solid derived from methanearsonic acid. It is used as a herbicide. Tradenames include ...
Arsenic Arsine Cacodylic acid Lewisite Cacodyl cyanide Elschenbroich, C. (2006). Organometallics. Weinheim: Wiley-VCH. ISBN ...
It contained a mixture of dimethylarsinic acid (also known as cacodylic acid) and its related salt, sodium cacodylate, and ... Cacodylic acid is still used on crops throughout the United States. Taken from ZNet Ecology in 1983: "It has been over twelve ... Agent Blue, a herbicide containing cacodylic acid and sodium cacodylate, was used by the United States military during the ... Arsenical herbicides containing cacodylic acid as an active ingredient are still used today as weed-killers. It sprayed on ...
Cacodylic acid Dimethyl(trifluoromethylthio)arsine Lewisite Trimethylarsine Cacodyl cyanide Cacodyl oxide Seyferth, Dietmar ( ...
Arsinic acids are related to phosphinic acids (R2PO2H.). Well known arsinic acids include diphenylarsinic acid and cacodylic ... Arsinic acids are monoprotic, weak acids. They react with sodium sulfide to give the dithioarinates R2AsS2Na. ... Arsinic acids are organoarsenic compounds with the formula R2AsO2H. They are formally, but not actually, related to arsinic ... doi:10.1016/S0022-328X(00)99179-4. Henry B.F.Dixon (1996). "The Biochemical Action of Arsonic Acids Especially As Phosphate ...
He also claimed to have cured thousands of "ephebes" with iodine syrup and injections of cacodylic acid. He used similar ... as well as by oxalic acid as found in chocolate. Sterian thought that chronic male masturbators could be recognized by their " ...
Cacodylic acid, which is of historic and practical interest, arises from the methylation of arsenic trioxide, a reaction that ... Arsenic(V) acid is a weak acid and the salts are called arsenates, the most common arsenic contamination of groundwater, and a ... Unlike phosphorous acid, arsenous acid is genuinely tribasic, with the formula As(OH)3. A broad variety of sulfur compounds of ... The protonation steps between the arsenate and arsenic acid are similar to those between phosphate and phosphoric acid. ...
Cacodylic acid, which is of historic and practical interest, arises from the methylation of arsenic trioxide, a reaction that ... Arsenic makes arsenic acid with concentrated nitric acid, arsenous acid with dilute nitric acid, and arsenic trioxide with ... Arsenic(V) acid is a weak acid and the salts are called arsenates, the most common arsenic contamination of groundwater, and a ... Unlike phosphorous acid, arsenous acid is genuinely tribasic, with the formula As(OH)3. A broad variety of sulfur compounds of ...
As herbicides are pesticides used to kill unwanted plants, silvicides are special pesticides (cacodylic acid or MSMA for ...
Cacodylic acid Cacodyl oxide Devarda's alloy, also used to produce arsine in the lab List of highly toxic gases Scheele's Green ... a) This is the only [metal] of all whole- as well as semi-metals that effervesces on digestion with arsenic acid.) Scheele ... Scheele, Carl Wilhelm (1775) "Om Arsenik och dess syra" Archived 2016-01-05 at the Wayback Machine (On arsenic and its acid), ... or nitric acid. AsH3 is used as a precursor to metal complexes of "naked" (or "nearly naked") arsenic. An example is the ...
... even though more effective arsenic-based anti-pest agents are available such as cacodylic acid, (CH3)2As(O)OH, an organoarsenic ...
... arsinous acids (R2AsOH), rare arsinic acids (R2As(O)OH), common, illustrated by cacodylic acid (R = CH3) arsonic acids (RAs(O)( ... Cacodylic acid arises from the methylation of arsenic(III) oxide. Phenylarsonic acids can be accessed by the reaction of ... including 4-hydroxy-3-nitrobenzenearsonic acid (3-NHPAA or Roxarsone), ureidophenylarsonic acid and p-arsanilic acid. These ... An important route to dimethylarsenic compounds begin with reduction of cacodylic acid (see above): (CH3)2AsO2H + 2 Zn + 4 HCl ...
... butachlor butafenacil butamifos butenachlor buthidazole buthiuron butralin butroxydim buturon butylate cacodylic acid ... oryzalin oxadiargyl oxadiazon oxapyrazon oxasulfuron oxaziclomefone oxyfluorfen parafluron paraquat pebulate pelargonic acid ... sodium azide sodium chlorate sulcotrione sulfallate sulfathiadiazuron sulfentrazone sulfometuron sulfosulfuron sulfuric acid ... chloreturon chlorfenac chlorfenprop chlorflurazole chloridazon chlorimuron chlornidine chlornitrofen chloroacetic acid ...
The other most common color-coded Ranch Hand herbicides were Agent Blue (cacodylic acid) that was primarily used against food ... cacodylic acid (Ansar 138) and its sodium salt sodium cacodylate) used from 1962-1971 in powder and water solution Agent White ... 4-dichlorophenoxyacetic acid) and 2,4,5-T (2,4,5-trichlorophenoxyacetic acid) manufactured for the U.S. Department of Defense ... Tordon 101): 21.2% (acid weight basis) triisopropanolamine salts of 2,4-D and 5.7% picloram used 1966-1971 Agent Orange or ...
... mixture Brodifacoum Bromadiolone Bromethalin Bromine monochloride Bromomethane Bromoxynil Burgundy mixture Cacodylic acid ... 5-Trichlorophenoxyacetic acid Triclopyr Trifluralin Triazofos Trophobiosis Ultra-low volume Uragan D2 UK Pesticides Campaign ... 4-Dichlorophenoxyacetic acid 1,3-Dichloropropene Dichlorprop Dichlorvos Dicrotophos 1,3-Difluoro-2-propanol Dimethenamid ... Cyhalothrin Cyromazine Davicil DCMU DDT DDT in Australia DDT in New Zealand DDT in the United States Dehydroacetic acid ...
... in the urine of mammals is dimethylarsinic acid or cacodylic acid, DMA(V). Dimethylarsenic acid is also known as Agent Blue and ... Resulting metabolites are monomethylarsonous acid, MMA(III), and dimethylarsinous acid, DMA(III). Methylation had been regarded ... Dimethylarsinic acid, DMA(V), caused DNA single strand breaks resulting from inhibition of repair enzymes at levels of 5 to 100 ... Both DMA(III) and DMA(V) were shown to release iron from horse spleen as well as from human liver ferritin if ascorbic acid was ...
... cacodylic acid MeSH D02.691.088.500 - melarsoprol MeSH D02.691.088.700 - roxarsone MeSH D02.691.340.350 - iron-dextran complex ... quinic acid MeSH D02.241.511.852 - shikimic acid MeSH D02.241.511.902 - sugar acids MeSH D02.241.511.902.107 - ascorbic acid ... edetic acid MeSH D02.241.081.038.455 - egtazic acid MeSH D02.241.081.038.581 - iodoacetic acid MeSH D02.241.081.038.581.400 - ... hexuronic acids MeSH D02.241.081.844.915.400.500 - iduronic acid MeSH D02.241.081.901.177 - aconitic acid MeSH D02.241.081.901. ...
... and uric acid derivatives (1860 and onwards) (including the discovery of barbituric acid (1864), the parent compound of the ... or cacodylic chloride. After completing his doctorate, he followed Kekulé to the University of Ghent, when Kekulé became ... Antimanic drugs Barbituric acid Hydantoin Indole Nitrosobenzene Phenolphthalein Picoline Resorcinarene "Johann Friedrich ...
Cacodylic acid is a weak acid with a pKa of around 6.25. Cacodylic acid can be reduced to dimethylarsine , which is a versatile ... "Spectrophotometric determination of the acid dissociation constants for cacodylic acid and p-Nitrophenol at elevated ... Cacodylic acid is an organoarsenic compound with the formula (CH3)2AsO2H. With the formula R2As(O)OH, it is the simplest of the ... sold cacodylic acid and its salts under the Phytar brand name. The variety used in Vietnam (as Agent Blue) was Phytar 560G. " ...
organic acid any organic compound with an acid group (e.g. carboxyl group, sulfo group) ... nowiki,ácido orgánico; asid organik; organic acid; Органична киселина; Acizi organici; 有機酸; organisk syra; acid organic; 有機酸; 有 ... ATPase-coupled organic acid transmembrane transporter activity (cargo). *organic acid transmembrane transporter activity (cargo ... acid hữu cơ; Organiese suur; органска киселина; 有机酸; organisk syre; organisk syre; organic acid; حمض عضوي; szerves sav; azido ...
Trichloroethylene, trichloroacetic acid: end of work week, 100 mg/g or trichloroacetic acid plus trichloroethanol, 300 mg/g ... Trichloroethylene, trichloroacetic acid: end of work week, 100 mg/g or trichloroacetic acid plus trichloroethanol, 300 mg/g ... Mandelic acid: start of shift, 300 mg/g; end of shift, 800 mg/g ... monomethyl-arsonic acid, cacodylic acid (days). Hair (ingestion ... Phenylglyoxylic acid: start of shift, 100 mg/g; end of shift, 240 mg/g ...
HRAC 15 (Very Long-Chain Fatty Acid Synthesis inhibitors). *HRAC 18 (Inhibition of Dihydropteroate Synthase) ...
HRAC 15 (Very Long-Chain Fatty Acid Synthesis inhibitors). *HRAC 18 (Inhibition of Dihydropteroate Synthase) ...
HRAC 15 (Very Long-Chain Fatty Acid Synthesis inhibitors). *HRAC 18 (Inhibition of Dihydropteroate Synthase) ...
Cacodylic Acid Trihydrate, Sodium Salt, Sodium Salt Catalog No: 920-30 Form: Crystalline ... L-(+)-Lactic Acid Catalog No: 950-20 Form: Crystalline Powder 950-20. Organic. > 99% (Titration). Crystalline Powder. More Info ... L-(+)-Lactic Acid - 30% Solution Catalog No: 950-10 Form: Aqueous Solution ... Coenzyme A (Co A), Free Acid, Hydrate Catalog No: 951-50 Form: Crystalline Powder ...
However, organic arsenic compounds, namely cacodylic acid, disodium methyl¬arsenate (DSMA), and monosodium methylarsenate (MSMA ... The greatest use of arsenic in alloys is in lead-acid batteries for automobiles. Another important use of arsenic compounds is ...
Agent Blue was made of cacodylic acid and sodium cacodylate: arsenic compounds. Arsenic, the favored poison of the Middle Ages ... cacodylic acid and butyl 2, 4, and 5-T). Vietnamese pilots flying Vietnamese helicopters fitted with spray rigs provided by the ... Agent Blue, the only agent not derived from phenoxyacatic acid was used in all phases of the war. All these herbicides were ...
... cacodylic acid, or picloram), and Competent medical evidence that the disease began within the deadline for that disease (if ... cacodylic acid, or picloram), and Competent medical evidence that the disease began within the deadline for that disease (if ...
Finally, long-term storage of tissue specimens in 0.1 M cacodylic acid buffer is possible if the buffer is changed on a monthly ... These results were achieved when specimens were washed three times in a cacodylic acid buffer after completion of the in vitro ...
Cacodylate use Cacodylic Acid Cacodylic Acid Cacosmia use Olfaction Disorders Cacosmias use Olfaction Disorders ...
... a 2-12 months examine of F344 rats uncovered to cacodylic acid at 0100 ppm and B6C3F1 mice exposed at zero500 ppm didnt detect ... Using a lemon or vinegar and honey beverage helps with di- gestion although this provides citric or acetic acid, not hydro- ... Oxygen is required for the oxidative phosphorylation of the lactic acid produced by glycolysis. Implicitly, continued therapy ...
Cacodylate use Cacodylic Acid Cacodylic Acid Cacosmia use Olfaction Disorders Cacosmias use Olfaction Disorders ...
Cacodylate use Cacodylic Acid Cacodylic Acid Cacosmia use Olfaction Disorders Cacosmias use Olfaction Disorders ...
Cacodylate use Cacodylic Acid Cacodylic Acid Cacosmia use Olfaction Disorders Cacosmias use Olfaction Disorders ...
Cacodylate use Cacodylic Acid Cacodylic Acid Cacosmia use Olfaction Disorders Cacosmias use Olfaction Disorders ...
Dimethylarsinic acid (Cacodylic acid). Back Events See the complete list of deadlines! ...
Cacodylic acid ; Dose-response relationships ; Reprints ; Rats ; Supernumerary ribs ; Ethylene-bis-isothiocyanate ; ... Dichlorophenoxyacetic acids ; Trichlorophenols Holdings. Library. Call Number. Additional Info. Location. Last. Modified. ... Acetylsalicylic acid ; Reprints ; Fetal development ; Aspirin ; Teratogens ; Immobilization ...
... wastes from MSMA and cacodylic acid. 270 Other specified organic sludges, slurries and solids Tank bottoms from mixed organic ... 114 Other inorganic acid wastes Off-specification acids; by-product hydrochloric acid; dilute acid solutions; acid test ... 267 Organic acids Carboxylic or fatty acids; formic, acetic, propionic acid wastes; sulphamic and other organic acids that may ... equipment cleaning acids; cation regenerant; reactor acid washes; catalyst acid and acid washes. ...
A solution was prepared from 10.0 mL of 0.100 M cacodylic acid and 10.0 mL of 0.080 0 M NaOH. To this mixture was added 1.00 mL ... A solution was prepared from 10.0 mL of 0.100 M cacodylic acid and 10.0 mL of 0.080 0 M NaOH. To this mixture was added 1.00 mL ... Calling morphine B, calcu- late the fraction of morphine present in the form BH CHz ;(CHzJAsOH Cacodylic acid Ka = 6.4 X 10- ... Calling morphine B, calcu- late the fraction of morphine present in the form BH CHz ; (CHzJAsOH Cacodylic acid Ka = 6.4 X 10- ...
Cacodylic acid. U372. 10605-21-7. Calcium chromate. U271. 17804-35-2. Carbamic acid, 1H-benzimidazol-2-yl, methyl ester.. ... Carbamic acid, 1H-benzimidazol-2-yl, methyl ester.. U280. 101-27-9. Carbamic acid, [1-[(butylamino)carbonyl]-1H-benzimidazol-2- ... Carbamic acid, [1-[(butylamino)carbonyl]-1H-benzimidazol-2-yl]-,methyl ester.. U238. 51-79-6. Carbamic acid, (3-chlorophenyl ... Ethanimidothioic acid, N,N-[thiobis[(methylimino)carbonyloxy]]bis-, dimethyl ester. U359. 110-80-5. Ethanimidothioic acid, 2-( ...
Filters: Keyword is Cacodylic Acid and Author is Scannell Bryan, Molly [Clear All Filters] ...
Stabilization of Al(III) solutions by complexation with cacodylic acid: Speciation and binding features Physical Chemistry ... Hydroxamic acids as weak base indicators: Protonation in strong acid media Journal of Organic Chemistry, Vol. 66, Núm. 24, pp. ... Acid-base behaviour of organopalladium complexes [Pd(CNN)R]BF4 New Journal of Chemistry, Vol. 28, Núm. 12, pp. 1450-1456 ... Hydrolysis mechanisms for the organopalladium complex [Pd(CNN)P(OMe) 3]BF4 in sulfuric acid Journal of Physical Chemistry A, ...
QUANTITATIVE-EVALUATION OF FRONTALURE AND CACODYLIC ACID TREATMENT EFFECTS ON WITHIN-TREE POPULATIONS OF SOUTHERN PINE BEETLE. ...
There were also significant genotype effects in percentage inorganic As (F=15.8, P,0.001) and percentage cacodylic acid (F=22.1 ... There were also significant genotype effects in percentage inorganic As (F=15.8, P,0.001) and percentage cacodylic acid (F=22.1 ... There were also significant genotype effects in percentage inorganic As (F=15.8, P,0.001) and percentage cacodylic acid (F=22.1 ... There were also significant genotype effects in percentage inorganic As (F=15.8, P,0.001) and percentage cacodylic acid (F=22.1 ...
  • Urinary levels of total arsenic, inorganic arsenite (AsIII) and arsenate (AsV), monomethylarsonic acid (MMAV), and dimethylarsinic acid (DMA V) were determined. (tmu.edu.tw)
  • Neutralization of cacodylic acid with base gives cacodylate salts, e.g. sodium cacodylate. (wikipedia.org)
  • Cacodylic acid and its salts were incorporated into herbicides by a large variety of manufacturers under numerous brand names. (wikipedia.org)
  • APC Holdings Corp. sold cacodylic acid and its salts under the Phytar brand name. (wikipedia.org)
  • 111 Spent pickle liquor Acid solutions of sulphuric and hydrochloric acids containing ferrous salts from steel pickling. (greenlightsinc.ca)
  • Cacodylic acid/sodium cacodylate is a buffering agent in the preparation and fixation of biological samples for electron microscopy and in protein crystallography. (wikipedia.org)
  • Agent Blue", a mixture of cacodylic acid and sodium cacodylate was used during the Vietnam War as a defoliant. (wikipedia.org)
  • With the formula R2As(O)OH, it is the simplest of the arsinic acids. (wikipedia.org)
  • Cacodylic acid is a weak acid with a pKa of around 6.25. (wikipedia.org)
  • The greatest use of arsenic in alloys is in lead-acid batteries for automobiles. (cdc.gov)
  • Cacodylic acid is probably not metabolized to inorganic arsenic since the disposition of 14 C and 74 As-cacodylic acid were identical. (nih.gov)
  • The greatest use of arsenic in alloys is in lead-acid batteries for automobiles. (cdc.gov)
  • BACKGROUND: Common genetic variation in the arsenic methyltransferase (AS3MT) gene region is known to be associated with arsenic metabolism efficiency (AME), measured as the percentage of dimethylarsinic acid (DMA%) in the urine. (nih.gov)
  • Urinary concentrations of trimethyl selenonium ion (TMSe) were measured by HPLC-vapor generation-ICPMS, as were inorganic arsenic (iAs), methylarsonic acid (MMA), and dimethylarsinic acid (DMA). (nih.gov)
  • Considering published data from occupational not exposed persons, new BAR for the arsenic species of 0.5 µg/l urine for arsenic (+III), 0.5 µg/l urine for arsenic (+V), 2 µg/l urine for monomethylarsonic acid (MMA) and 10 µg/l urine for dimethylarsinic acid (DMA) were evaluated. (uni-luebeck.de)
  • Cacodylic acid and its salts were incorporated into herbicides by a large variety of manufacturers under numerous brand names. (wikipedia.org)
  • Analysis of a sample of the article by this department showed that it con- sisted essentially of guaiacol, cacodylic acid, strychnine sulphate, and water. (nih.gov)
  • It is made up in 0.1 ionic strength cacodylic acid buffer which is 0.08 M NaCl. (nih.gov)