Composés deutérés

<p>Applications Diphenyl-2,2',4,4',6,6'-d6-amine (CAS# 99234-91-0) is a useful isotopically labeled research compound.<br></p>

<p>Applications Pyruvic Acid-13C3 is labelled Pyruvic acid (P998900).Pyruvic acid is an Intermediate in sugar metabolism and in enzymatic carbohydrate degradation (alcoholic fermentation) where it is converted to acetaldehyde and CO2 by carboxylase. In muscle, Pyruvic acid (derived from glycogen) is reduced to lactic acid during exertion, which is reoxidized and partially retransformed to glycogen during rest. The liver can convert Pyruvic acid to alanine by amination.<br>References Wenzel, A., et al.: J. Neurosci., 21, 53 (2001); Martinez., et al.: Development, 6, 851 (2002); Nakayama, K., et al.: J. Biochem., 146, 757 (2009); Tanaka, T., et al.: J. Pharmacol. Sci., 109, 24 (2009)<br></p>

<p>Applications 4-Nitrophenol-13C6 is an intermediate in the synthesis of labelled 4-Aminophenol (A618920). It is also a nephrotoxic metabolite of Acetaminophen (A161220) and Phenacetin (P294580) (1,2).<br> Not a dangerous good if item is equal to or less than 1g/ml and there is less than 100g/ml in the package<br>References (1) Watanabe, et al.: Drug Metab. Dispos., 38, 1532 (2010)(2) Batuta, S. and Begum, N. A. Synth. Commun. 47, 137-147 (2017)<br></p>

<p>Applications 4,5-Dimethyl-3-hydroxy-2(5H)-furanone-13C2 is a labelled analogue of 4,5-Dimethyl-3-hydroxy-2(5H)-furanone (D473600). 4,5-Dimethyl-3-hydroxy-2(5H)-furanone is a fragrant compound that is a key indicator of maple syrup urine disease, a disorder affecting newborn children that is the result of its inability to properly metabolize Valine (V094205), Leucine (L330110) and Isoleucine (I820175). 4,5-Dimethyl-3-hydroxy-2(5H)-furanone is naturally found in fenugreek seeds, and is an odourant present in sherry wines.<br> Not a dangerous good if item is equal to or less than 1g/ml and there is less than 100g/ml in the package<br>References Blank, I., et al.: Prog. Flav. Prec. Stud., No vol. given, 103 (1993); Guerra, P. &amp; Yaylayan, V.: J. Agr. Food Chem., 59, 4699 (2011); Mackenzie, D. &amp; Woolf, L.: Brit. Med. J., 1, 90 (1959); Podebrad, F., et al.: J. Inh. Metab. Dis., 22, 107 (1999)<br></p>

<p>Applications 1,4-Butane-2,2,3,3-d4-diamine 2HCl (CAS# 88972-24-1) is a useful isotopically labeled research compound.<br></p>

<p>Applications 2-Butan-3,3,4,4,4-d5-ol was used to prepare and oxidize 3,3-disubstituted cyclobutenes.<br>References Curry, M., et al.: J. Chem. Soc., 10, 1391 (1980)<br></p>

<p>Stability Hygroscopic<br>Applications Isotope labelled Drometrizole is an intermediate reactant in the synthesis of UV light absorbers for polyester fibers.<br></p>

<p>Applications N-Methylsuccinimide-d3 is the isotope labelled analog of N-Methylsuccinimide (M329425); a model compound used to investigate the mechanism of enolization step by density-functional theory (DFT) calculations. N-Methylsuccinimide is a metabolite of N-methyl-2-pyrrolidone (NMP) and its presence in plasma and urine can be used as a biomarker of exposure to NMP<br>References Takahashi, O., et al.: Chem. Biodivers., 7, 1349 (2010)<br></p>

<p>Applications Ademethionine-d3 1,4-Butanedisulfonate, is a labeled analogue of Ademethionine 1,4-Butanedisulfonate (A280355), used in the synthesis of sulfonio-adenosyl-L-methionine (SAMe) salts.<br></p>

<p>Applications Aclonifen-d5, is the labeled analogue of Aclonifen, which is used as a pesticide and herbicide.<br> Not a dangerous good if item is equal to or less than 1g/ml and there is less than 100g/ml in the package<br>References Laini, A., et al.: Sci. Total Environ., 438, 312 (2012); Fantke, P., et al.: Enviorn. Int., 49, 9 (2012);<br></p>

<p>Applications A labelled form of Fenoxycarb (F248870), a carbamate insect growth regulator by preventing immature insects from reaching maturity by mimicking juvenile hormone. Used as a standard for Pesticide detection. Fenoxycarb is also used in cannabis testing kits as a component of pesticide mixes (P698235).<br>References El-Saeid, M.H., et al.: J. Chem., 10, (2013); Coors, A., et al.: Environ. Toxicol. Chem., 31, 1239 (2012);<br></p>

<p>Applications The compund has cytotoxic effects. Labelled Norharmane.<br>References Elfarra, A., et al.: Drug Metab. Dispos., 26, 779 (1998), Da Costa, A., et al.: Biocell, 23, 65 (1999), Janetzky, B., et al.: Drug Dev. Res., 46, 51 (1999), Kutty, R., et al.: Toxicol. Appl. Pharmacol., 107, 377 (1991), Riederer, F., et al.: J. Neurochem., 81, 814 (2002), Schott, Y., et al.: Bioorg. Med. Chem. Lett., 16, 5840 (2006),<br></p>

<p>Applications Bis(4-hydroxyphenyl) Sulfone-d4 is the isotope labelled compound commonly used as a reactant in epoxy reactions and is also used as a latent thermal catalyst for epoxy resin.<br>References Fu, J.W., et al.: Adv. Mat. Rsch., 266, 1022 (2011); Li, J.X., et al.: Polymers. Adv. Tech., 23, 803 (2012);<br></p>

<p>Applications 2-(Chloromethyl)-8-(1,1-dimethylethyl)-1,4-dioxaspiro[4.5]decane-d4 is an intermediate used in the synthesis of Spiroxamine-d4 (S683502), which is the labeled analogue of Spiroxamine (S683500), which is a spiroketalamine fungicide for use on cereal crops. Spiroxamine inhibits ergosterol synthesis. Spiroxamine is used as agricultural fungicide.<br>References Wang, J., et al.: J. Agric. Food Chem., 53, 1857 (2005), Abrahim, A., et al.: J. Pharm. Biomed. Anal., 51, 131 (2010), Wang, J., et al.: Anal. Bioanal. Chem., 396, 1513 (2010),<br></p>

<p>Applications Isotope labelled Molinate (M486477), which is a herbicide that is used to control broad-leaved and grassy plants in rice and other crops (1,2). Drinking water contaminant candidate list 3 (CCL 3) compound as per United States Environmental Protection Agency (EPA), environmental, and food contaminants.<br> Not a dangerous good if item is equal to or less than 1g/ml and there is less than 100g/ml in the package<br>References 1. Nacher-Mestre, J. et al.: J. Agri. Food. Chem. 2014 Mar 12;62(10):2165-742. Sugrue, E. et al.: Appl. Environ. Microbiol. 2015 Apr;81(7):2612-24.<br></p>

<p>Applications A labelled metabolite of Dichloropropanols.<br> Not a dangerous good if item is equal to or less than 1g/ml and there is less than 100g/ml in the package<br>References Velisek, J., et al.: J. Agric. Food Chem., 28, 1142 (1980), Johnson, J., et al.: Anal. Chem., 62, 2162 (1990),<br></p>

<p>Applications o-Anisidine is a highly toxic environmental pollutant and digestive system carcinogen. It is also a toxin that has been identified to be present in cigarettes.<br> Not a dangerous good if item is equal to or less than 1g/ml and there is less than 100g/ml in the package<br>References Coggins, C.R.E. et al.: Inhal. Toxicol., 23, 41 (2011); Dracinska, H. et al.: Neuroendorinol. Lett., 27, 9 (2006); Naiman, K. et al.: Neuroendocrinol. Lett., 31, 36 (2010);<br></p>