Toxicology

<p>Applications N-Methyl Ticlopidine-13C,D3 iodide is a labelled analogue of N-Methyl Ticlopidine iodide (M330270). N-Methyl Ticlopidine iodide is a derivative of Ticlopidine (T438325), a compound that antagonizes adenosine diphosphate-stimulated platelet aggregation.<br>References Kimchi, N., et al.: Digestion, 75, 36 (2007)<br></p>

<p>Applications O-Desethyl O-Isopropyl Dabigatran Etexilate-d13 is the labelled form of O-Desethyl O-Isopropyl Dabigatran Etexilate (D289378). O-Desethyl O-Isopropyl Dabigatran Etexilate is an impurity of Dabigatran Etexilate Mesylate (D100150). Dabigatran Etexilate Mesylate is a nonpeptide, direct thrombin inhibitor and an Antithrombotic agent.<br>References Hauel, N., et al.: J. Med. Chem., 45, 1757 (2002); Mungall, D., et al.: Curr. Opin. Invest. Drugs, 3, 095 (2002); Stangier, J., et al.: J. Clin. Pharmacol., 45, 555 (2005)<br></p>

<p>Applications Phosfolan was identified and determined to be a residual pesticide in okra samples.<br>References Lin, Y. C., et al.: Lihua Jianyan, Huaxue Fence, 52, 999 (2016)<br></p>

<p>Applications A metabolite of Demeton-S (D231360).<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 Szeto, S.Y., et al.: J. Agric. Food Chem., 30, 1082 (1982),<br></p>

<p>Applications A deuterated 4-chloro Bupropion (B689625) analogue used in the preparation of compounds for indirect dopamine agonist pharmacotherapy for treating cocaine, methamphetamine, nicotine, and other drugs of abuse addiction.<br>References Carroll, F.I. et al.: J. Med. Chem., 52, 6768 (2009);<br></p>

<p>Applications A metabolite of Bufuralol, a β-Adrenergic blocker with peripheral vasodilating activity.<br>References Francis, R.J., et al.: Eur. J. Clin. Pharmacol., 23, 529 (1982), Pringle, T.H., et al.: Br. J. Clin. Pharmacol., 22, 527 (1986),<br></p>

<p>Stability Hygroscopic<br>Applications Thiacloprid-d4 is the isotope labelled analog of Thiacloprid, which is a chloronicotinyl insecticide for use in fruits and vegetables.<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 Nauen, R., et al.: Pestic. Sci., 53, 133 (1998), Jetter, R., et al.: Plant Physiol., 126, 1725 (2001), Weichert, H., et al.: J. Agric. Food Chem., 54, 6294 (2006), Hoffmann, E., et al.: J. Insect. Sci., 8 (2008),<br></p>

<p>Applications Isotope labelled cis-5-Dodecenoyl Carnitine Inner Salt is an L-carnitine metobolite which are often used to diagnose specific inherited metabolic diseases especially glucose related ones.<br>References Yang, S. et l.: J. Chrom. B., Anal. Tech. Biomed. Life Sci., 857, 251 (2007);<br></p>

<p>Applications Diphenyl Sulfide is an aromatic organosulfur compound. Diphenyl Sulfide is metabolite of the fungicide Edifenphos as well as a potential impurity of Fenticonazole Nitrate (F279250).<br>References Ueyama, I. et al.: Agric. Biol. Chem., 42, 885 (1978); Tajana, A. Arzneim.-Forsch., 31, 2127 (1981);<br></p>

<p>Applications 7-Chlorokynurenic acid is an NMDA receptor antagonist and inhibitor of EAAT.<br></p>

<p>Applications 3-(3-Chlorophenyl)-1,1-dimethylurea has been to study, the quantitative structure-activity relations of substituted phenylureas on the Hill inhibitory activity; Simple and rapid screening method for photosystem II inhibitory herbicides using photoautotrophically cultured plant cells with chlorophyll fluorescence monitoring.<br>References Takemoto I., et al., Nippon Noyaku Gakkaishi, 9, 517-21 (1984); Yoneyama K., et al., Biosci. Biotechnol. Biochem., 57, 1389-90 (1993)<br></p>

<p>Applications 3,4-Dichloroaniline-d2 (cas# 1219803-22-1) is a compound useful in organic synthesis.<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></p>

<p>Stability Hygroscopic<br>Applications Mycophenolic Acid β-D-Glucuronide Disodium Salt is A metabolite of Mycophenolic Acid (M831500), an antibiotic produced by Penicillium brevi-compactum, P. Stoloniferum and related spp. A selective inhibitor of lymphocyte proliferation by blocking inosine monophosphate dehydrogenase, an enzyme involved in the de novo synthesis of purine nucleotides.<br>References Senda, M., et al.: Transplantation, 60, 1143 (1995); Nimmesgern, E., et al.: J. Biol. Chem., 271, 19421 (1996); Gummert, J.F., et al.: J. Pharmacol. Exp. Ther., 291, 1100 (1999)<br></p>

<p>Applications PSI 7411 is used in biological studies as nucleotide analog polymerase inhibitor for hepatitis C virus QS-9851.<br>References Denning, J., et al.: Antimicrob. Agents Chemother., 57, 1201 (2013)<br></p>

<p>Applications Endothion is an insecticide. A hazardous material.<br>References Faris, F., et al.: Agric. Res. Rev., 48, 71 (1970), Anon.: Dangerous Prop. of Ind. Mater. Rep., 13, 527 (1993), Mortensen, S. R., et al.: Toxicology of Organophosphate and Carbamate Compounds, 673 (2006),<br></p>

<p>Applications 2,4-Dimethylphenol is used both as a pesticide to ward of insects or other common pests from crops from crops as well as in the synthesis of anti-oxidant compounds due to the phenol moiety in the structure. This is a labelled analog.<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 Liu, B. et al.: J. Agri. Chem., 58, 2673 (2010); Guillen, M. et al.: J. Agri. Chem., 47, 3016 (1999); J. Agri. Chem., 46, 1276 (1999); Kim, S. et al.: J. Agri. Chem., 59, 4570 (2011);<br></p>

<p>Applications Acetophos is used as an insecticide.<br>References Saito, T., et al.: Bochu Kagaku. 31, 77 (1966)<br></p>

<p>Applications 3,5-Dibromo-4-hydroxybenzonitrile-2,6-d2 (CAS# 1219798-95-4) is a useful isotopically labeled research compound.<br></p>

<p>Applications Testosterone 17-Hexahydrobenzoate-d11 is the isotope analog of Testosterone 17-Hexahydrobenzoate. Testosterone 17-Hexahydrobenzoate is a metabolite of testosterone (T155000), which is used in biological studies to determine the hemolytic and lipophilic activity of this anabolic steroid.<br>References Biagi, G.L., et al.: J. Med. Chem., 13, 944 (1970); Biagi, G. L., et al.: J. Med. Chem., 18, 873 (1975)<br></p>

<p>Applications 10β-Hydroxyl Dextrorphan 3-O-β-D-Glucuronide is a metabolite of Dextrorphan.<br>References Thurman, E. Michael., et al.: J. Chrom. A., 1259, 158-166 (2012)<br></p>

<p>Applications Hecogenin Acetate, is a derivative of Hecogenin (H129945), which is a sapogenin present in the leaves of species from the Agave genus, possessing wide spectrum of pharmacology activities, such as having antinociceptive properties.<br>References Gama, K. B., et al.: J. Natural Prod., 76, 559 (2013);<br></p>

<p>Applications Dinocap is an acaricide and pesticide.<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></p>

<p>Stability Hygroscopic<br>Applications A metabolite of Codeine (C634075). Analgesic (narcotic); antitussive.<br>References Frances, B., et al.: J. Pharm. Exp. Ther., 25, 262 (1992), Osborne, R., et al.: Br. J. Clin. Pharm., 34, 130, (1992),<br></p>

<p>Stability Light Sensitive, Temperature Sensitive<br>Applications An anlogue of β-Carotene (C184250). Decapreno-β-carotene is used as an internal standard for the quantification of the hydrocarbon carotenoids by HPLC.<br>References Hemley, R., et al.: Biophysical J., 20, 377 (1977), Taylor, R.F, et al.: Methods Enzymol., 67, 233 (1980),<br></p>

<p>Applications An antitussive. Controlled substance (opium derivative).<br>References Kabayashi, S., et al.: Arzneim.-Forsch., 20, 43 (1970), Yanagita, T., et al.: Bull. Narc., 29, 33 (1977),<br></p>

<p>Applications 5R,6R-Benzylpenicilloate Disodium Salt is a derivative of Benzyl Penicillinate Potassium Salt (B288601), which is an antibiotic substance produced by Penicillium sp. Antibacterial.<br>References Fleming, A., et al.: Br. J. Exp. Pathol., 10, 226 (1929), Clutterbuck, P.W., et al.: Biochem. J., et al.: 26, 1907 (1932), Chain, E., et al.: Lancet, 2, 226 (1940),<br></p>

<p>Applications 5-cis-Tetradecenoyl-d3 Carnitine is labelled 5-cis-Tetradecenoyl Carnitine (T291425) which is one of the metabolites found in the lymph fluid collected from dietary stressed rats.<br>References Ardawi, M., et al.: Biochem. J., 212, 835 (1983), Otton, R., et al.: J. Endocrinol., 174, 55 (2002), Gu, H., et al.: Anal. Chem., 79, 89 (2007),<br></p>

<p>Applications Contact herbicide used also to produce desiccation and defoliation.<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 Brian, et al.: Nature, 181, 446 (1958), Gaines, T.B., et al.: Fundam. Appl. Toxicol., 7, 299 (1986),<br></p>

<p>Applications Nimbin (N476280) derivative.<br>References Cohen, E., et al.: Life Sci., 58, 1075 (1996), Roy, A., et al.: Biol. Pharm. Bull., 29, 191 (2006),<br></p>

<p>Applications ((2S,3S,4R,5S)-4-Fluoro-3-hydroxy-5-(5-methyl-2,4-dioxo-3,4-dihydropyrimidin-1(2H)-yl)tetrahydrofuran-2-yl)methyl Benzoate is an impurity of antiviral drug Clevudine (C574150), which is used for the treatment of Hepatitis B.<br>References Kwon, S., et al.: J. Virol., 84, 4494 (2010); Daga, P., et al.: Protein Sci., 19, 796 (2010);<br></p>

<p>Applications 20(3'-Oxo-caspofungin) Triflate Salt is derived from Pneumocandin B0 (P645300), which is the major analogue of a family of lipopeptides isolated from several species of several different genera, such as Cryptosporiopsis, Glarea and Pezicula. Pneumocandin B0 is a potent antifungal and acts by inhibition of the synthesis of β-(1,3)-D-glucan, an essential component of the cell wall of susceptible fungi.<br>References Schwartz, R., et al.: J. Antibiot., 45, 1853 (1992); Petersen, L., et al.: Appl. Microbiol. Biotechnol., 62, 263 (2003), Petersen, L., et al.: Appl. Microbiol. Biotechnol., 62, 263 (2003)<br></p>

<p>Applications A Nicotine metabolite. Carcinogen.<br></p>

<p>Stability Hygroscopic<br>Applications Raloxifene 6-Glucuronide Lithium Salt is A metabolite of Raloxifene (R100000), a nonsteroidal estrogen receptor mixed agonist/antagonist.<br>References Dodge, J., et al.: Bioorg. Med. Chem. Lett., 7, 993 (1997); Jeong, E., et al.: Drug Metab. Dispos., 33, 785 (2005); Trontelj, J., et al.: Pharmacol. Res., 52, 334 (2005); Oswald, S., et al.: Clin. Pharmacol. Ther., 79 206 (2006)<br></p>

<p>Applications 3,4-Dimethoxybenzenesulfonyl Chloride is used in the synthesis of aryl sulfonamides as selective carbonic anhydrase IX and XII inhibitors.<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 Rosatelli, E., et. al.: Bioorg. Med. Chem. Lett., 24, 3422 (2014)<br></p>

<p>Applications A Cobicistat (C633150) impurity. Cobicistat is a HIV protease inhibitor and have been coadministered with low-dose ritonavir (R535000) as a pharmacoenhancer, significantly increasing their plasma concentrations.<br>References Von, H., Exp. Rev. Clin. Pharmacol., 5, 557 (2012); Lepist, E.I., et al.: Antimicrob. Agent. Chemother., 56, 5409 (2012); Orr, S.T.M., et al.: J. Med. Chem., 55, 4896 (2012);<br></p>

<p>Applications 1-Chloro-2-(α-chlorophenylmethyl)benzene-d5 is the isotope labelled analog of 1-Chloro-2-(α-chlorophenylmethyl)benzene (C427570); a reagent in the synthesis of bifonazole analogs which have antibacterial and antifungal activities. It is also used in the preparation of diphenylpiperazine N-type calcium channel inhibitors.<br>References El Hage, S., et al.: Arch. Pharm., 344, 402 (2011); Pajouhesh, H., et al.: Bioorg. Med. Chem. Lett., 20, 1378 (2010)<br></p>

<p>Impurity Lopinavir EP Impurity K<br>Applications Lopinavir D-Valine Diastereomer (Lopinavir EP Impurity K) is a metabolite of Lopinavir (L469480); a selective HIV protease inhibitor and antiviral. It is a COVID19-related research product.<br>References Sham, H.L., et al.: Antimicrob. Ag. Chemother., 42, 3218 (1998); Kumar, G.N., et al.: Drug Metab. Dispos., 27, 86 (1999); Murphy, R.L., et al.: Antiviral Ther., 4, Suppl. 3, 85 (1999)<br></p>

<p>Applications 4-[4-(4-Methyloxy-phenyl)-piperazin-1-yl]-phenylamine, is an intermediate for the synthesis of Itraconazole (I937500), an Antifungal.<br></p>

<p>Applications Loratadine (L469575) Impurity. An isomer of N-Methyl Desloratadine (M316500).<br>References Zhong, D., et al.: Pharmazie, 49, 736 (1994); Ruperez, F., et al.: J. Pharm. Biomed. Anal., 29, 35 (2002);<br></p>

<p>Applications 2-[[3-[2-(Dimethylamino)ethyl]-1H-indol-5-yl]Methyl] Rizatriptan Benzoate is an impurity of the antimigraine drug rizatriptan benzoate.<br>References Sarma, P. S., et al.: Synth. Commun., 38, 603 (2008)<br></p>

<p>Applications Labelled 2-Furfurylthiol Acetate (F864600). 2-Furfurylthiol Acetate is a sulfur-substituted furan derivative used as flavouring agent. 2-Furfurylthiol Acetate is a precursor to furfurylmercaptan which is very prone to oxidation to the disulfide. We will provide a detailed procedure for the preparation of the thiol from the thioacetate with spectral data upon request.<br>References Engel, K., et al.: J. Agric. Food Chem., 39, 2249 (1991), Jones, M., et al.: J. Exp. Bot., 55, 1903 (2004), Gershater, M., et al.: J. Biol. Chem., 282, 21460 (2007),<br></p>

<p>Applications Testosterone (T155000) derivative. Inhibits estrogen biosynthesis. A steroid ligand for the cytosol androgen receptor (AR) of rat prostate.<br>References Ojasoo, T. et al.; J. Steroid Biochem. 27, 255 (1987); Schwarzel, W. et al.; Endrocrinology 92, 866 (1973);<br></p>

<p>Applications N-Desmethyl Sorafenib (Pyridine)-N-oxide is a metabolite of Sorafenib (S676850) and has anti-proliferative activity in human breast cancer cells.<br>References Tolcher, A.W., et al.: Cancer Chemoth. Pharm., 67, 751 (2011); Cui, P.H., et al.: Biochem. Pharmacol., 86, 419 (2013); Ghassabian, S., et al.: Biochem. Pharmacol., 84, 215 (2012)<br></p>

<p>Applications 4-Chloro-thiamethoxam is an over chlorinated impurity of thiamethoxam (T344180), which is a neonicotinoid insecticide. Reports show that when exposed to neonicotinid pesticides honeybees have problems returning home after foraging and bumblebee colonies grow poorly and produce fewer queens.<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 Oliver, J., et al.: J. Environ. Horticult., 28, 135 (2010), Ghosh, A., et al.: J. Entomol. Res., 34, 35 (2010), Chem. and Eng. News 90: 10 (2012)<br></p>

<p>Stability Hygroscopic<br>Applications Sodium salt of Fenoprofen (F248825), acts as an anti-inflammatory; analgesic.<br>References Rubin, et al.: J. Pharm. Sci., et al.: 60, 1797 (1971), Ward, C.K., et al.: Anal. Profiles Drug Subs., 6, 161 (1977); Hirsch, C. et al.: J. Pharm. Sci., 67, 231 (1978);<br></p>