Toxicology

<p>Applications A synthetic derivative of Dehydroepiandrosterone. The reduced androgenicity of Fluasterone may obviate toxicities associated with the androgenicity of the parent compound. Antitumor agent. Used in clinical trials for prostate cancer prevention.<br>References Bentley, P., et al.: Food Chem. Toxicol., 31, 857 (1993), Rao, K., et al.: Cancer Res., 59, 3084 (1999), Masuzaki, H., et al.: Science, 294, 2166 (2001), Osawa, E., et al.: Life Sci., 70, 2623 (2002),<br></p>

<p>Stability Very Very Hygroscopic<br>Applications Tiazofurin has antitumor activity and is a potential therapeutic agent in the treatment of cancer. Tiazofurin acts as an inhibitor of Inosine-5'-monophosphate (IMP) dehydrogenase.<br>References Streeter, D.G. et al.: Biochem. Biophys. Res. Comm., 115, 544 (1983); Boritzki, T. et al.: Biochem. Pharmacol., 34, 1109 (1985); Malek, K. et al.: Leuk. Res., 28, 1125 (2004);<br></p>

<p>Applications Ibrutinib-d4 is the labelled analogue of Ibrutinib (I124970). Ibrutinib is a highly selective Bruton’s tyrosine kinase (Btk) irreversible inhibitor.<br>References MacGlashan, D., et. al.: Int. Immunol., 11, 475 (2011)<br></p>

<p>Applications A 5-chloro substitued analogue of Bupropion (B689625) 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 Labelled derivative of Artemisinin. Antimalarial.<br>References Zhao, Y., et al.: J. Nat. Prod., 49, 139 (1986), Lin, A.J., et al.: J. Med. Chem., 30, 2147 (1987), Price, R. N., et al.: Expert Opin. Invest. Drugs, 9, 1815 (2000),<br></p>

<p>Stability Hygroscopic<br>Applications Metabolites of butadiene.<br>References Heavner, D., et al.: J. Pharm. Biomed. Anal., 40, 928 (2006), Carmella, S., et al.: Chem. Res. Toxicol., 22, 734 (2009),<br></p>

<p>Applications Labelled Telmisartan (T017000). Telmisartan is an angiotensin II receptor antagonist.<br>References Wienen, W. et al.: Br. J. Pharmacol., 110, 245 (1993); Neutel, J.M. et al: Adv. Therap., 15, 206 (1998);<br></p>

<p>Applications A labelled metabolite of Nitazoxanide (N490100); a potent inhibitor of hepatitis B virus and hepatitis C virus. Kills Mycobacterium tuberculosis.<br>References Allen, M., et al.: Hepatology, 27, 1670 (1998), Blight, K., et al.: Science, 290, 1972 (2000), Blight, K., et al.: J. Virol., 77, 3181 (2003), Courcambeck, J., et al.: Antivir Ther., 11, 847 (2006), Hoffman, P., et al.: Antimicrob. Agents Chemother., 51, 868 (2007); de Carvalho et. al., J. Med. Chem., 52, 5789 (2009)<br></p>

<p>Stability Air Sensitive, Light Sensitive<br>Applications Isotope labelled Phenserine is inhibitor of amyloid precursor protein (APP). Used in Alzheimer’s treatments.<br>References Nordberg, A. et al.: J. Alz. DIsease., 47, 691 (2015); Reale, M. et al.: Curr. Alzheimer. Treatments., 11, 608 (2014);<br></p>

<p>Applications A triazinetrione anticoccidial. Coccidiostat.<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 Eberts, T., et al.: Clin. Chem., 25, 1440 (1979), Goodwin, M., et al.: Avian Dis., 29, 630 (1985), Sorensen, S., et al.: Clin. Chim. Acta, 264, 103 (1997), Conway, D., et al.: Poult. Sci., 280, 426 (2001),<br></p>

<p>Applications Methyl (2E)-[2-(chloromethyl)phenyl)](methoxyimino)acetate is an impurity from the pesticide active ingredient, Trifloxystrobin, a broad-spectrum foliar fungicide used in plant pritection.<br>References Margot, P. et al.: Bright. Crop Prot. Conf. Pest Dis., 2, 375 (1998); Karadimos, D.A. et al.: Crop Prot., 24, 23 (2005); Prom, L.K. et al.: Plant Dis., 87, 252 (2003);<br></p>

<p>Applications Cyhalofop is used as a pesticide for controlling pests.<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 Sada, Y. et al.: Jpn. Kok. Tok. Koh. 408 pp. (2020)<br></p>

<p>Applications Labelled Diflufenican (D445640). (Pre and post emergence foliar absorbed herbicide for winter weed control in cereal crops; carotenoid biosynthesis inhibitor.<br>References Conte, E., et al.: J. Agric. Food Chem., 46, 4766 (1998),<br></p>

<p>Applications Labelled Benzydamine (B209950). A nonsteroidal anti-inflammatory drug with local anaesthetic, analgesic and antipyretic properties.<br>References Passali, D., et al.: Clin. Ther., 23, 1508 (2001), Erbagci, Z., et al.: J. Dermatol., 31, 376 (2004), Sarveiya, V., et al.: Eur. J. Pharm. Sci., 26, 39 (2005),<br></p>

<p>Applications An antihypertensive, with affinity for multiple GPCR receptors.<br>References Zhu, Y., et al.: Biol. Pharm. Bull., 32, 1173 (2009), Shen, K., et al.: J. Pharm. Pharmacol., 61, 517 (2009), Brea, J., et al.: Mol. Pharmacol., 75, 1380 (2009), Varma, M., et al.: J. Med. Chem., 52, 4844 (2009),<br></p>

<p>Applications Nithiazine is a useful building block and insecticide.<br>References Quaranta, L.; et al.: WO 2018149851 (2018).<br></p>

<p>Applications Spiromesifen is a useful insecticide and miticide in plant breeding. Also useful in cannabis testing kits as a component of pesticide mixes (P698240).<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, Light Sensitive<br>Applications Dopamine (D1 and D2) receptor agonist. Emetic. Antiparkinsonian.<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 Neumeyer, J.L., et al.: J. Pharm. Sci., 59, 1850 (1970), Ginos, J.Z., et al.: J. Med. Chem., 18, 1194 (1975), Muhtadi, F.J., et al.: Anal. Profiles Drug Subs., 20, 121 (1991),<br></p>

<p>Stability Hygroscopic<br>Applications Anorexic.<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 Pinder, et al.: Drugs, 10, 241 (1975), Caccia, S., et al.: Eur. J. Clin. Pharmacol., 29, 221 (1985), Finner, N., et al.: Curr. Ther. Res., 38, 847 (1985),<br></p>

<p>Applications Uric Acid-1,3-15N2 is the labeled analogue of Uric Acid (U829200), a heterocyclcic compound that is created when purine nucleotides are broken down of by the human body. High blood concetration of Uric Acid is known as hyperuricemia and is often associated with a wide range of disorders and medical conditions such as gout, diabetes and metabolic syndrome. Uric acid may be a marker of oxidative stress and may have a potential therapeutic role as an antioxidant.<br>References Heinig, M. et al.: Cle. Clin. J. Med., 73, 1059 (2006); Glantzounis, G.K. et al.: Curr. Pharmac. Des., 11, 4145 (2005); Dehghan, A. et al.: Diab. Care, 31, 361 (2008); Nakagawa, T. et al.: Am. J. Physiol. Renal Physiol., 290, F625 (2006)<br></p>

<p>Applications Labelled analogue of Axitinib, a tyrosine kinase inhibitor. Axitinib is used in cancer therapy.<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 Wasser, K. et al.: Eur. Radiol., 13, 80 (2003),; Park, J. et al.: Clin. Cancer Res., 8, 1172 (2002); Bergers, G. et al.: J. Clin. Invest., 111, 1287 (2003);<br></p>

<p>Stability Hygroscopic<br>Applications Labelled Ropivacaine (R675000). Anesthetic (local).<br>References Cederholm. I., et al.: Reg. Anesth., 19, 18 (1994), Johansson, B., et al.: Anesth. Analg., 78, 210 (1994), Oda, Y., et al.: Anesthesiology, 82, 214 (1995),<br></p>

<p>Applications (±)-Haloxyfop-d4 is the labeled analogue of (±)-Haloxyfop (H104040) a herbicide.<br>References Manalil, S., et. al.: Weed Sci., 59, 210 (2011);<br></p>

<p>Stability Unstable in Protic Solvent<br>Applications Cefalonium is a first-generation cephalosporin antibiotic used as a long-acting intramammary cerate for infusion of dairy cows.<br>References Endo, T.: Kach. Kokin. Kenk., 12, 8 (1991); Berry, E.A. et al.: J. Dairy Sci., 90, 760 (2007); Bradley, A.J. et al.: J. Dairy Sci., 93, 1566 (2010);<br></p>

<p>Applications Isotope labelled 24 Bisphenol S (B519620) is a material used in thermal printing. 24 Bisphenol S is also used in the development of black leuco dyes.<br>References Shima, H. et al.: J. Imag. Sci. Technol., 54, 020502 (2010)<br></p>

<p>Impurity Albendazole EP Impurity F<br>Applications 5-(S-Methyl) Albendazole is a metabolite of Albendazole (A511610). Albendazole EP Impurity F<br>References Gyurik, R.J., et al.: Drug Metab. Dispos., 9, 503 (1981),<br></p>

<p>Impurity Tenofovir Disoproxil USP Related Compound A<br>Applications The S-enantiomeric impurity of the antiviral Tenofovir Disoproxil Fumarate (T018505(P)), which is an acyclic phosphonate nucleotide analogue; reverse transcriptase inhibitor and used as an anti-HIV agent.Tenofovir Disoproxil USP Related Compound A.<br>References Shaw, J. P., et al.: Pharm. Res., 14, 1824 (1997), Wyles, D., et al.: Clin Infect. Dis., 40, 174 (2005), Peng, J., et al.: J. Clin. Pharmacol., 46, 265 (2006), Seminari, E., et al.: J. Antimicrob. Chemother., 60, 831 (2007)<br></p>

<p>Applications Labelled Tylosin (T947650). Tylosin is a macrolide antibiotic isolated from a strain of Streptomycetes fradiae found in soil from Thailand. Antibacterial.<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 Hamill, et al.: Antibiot. Chemother., 11, 328 (1961), Corcoran, J.W., et al.: J. Antibiot., 30, 1012 (1977), Seno, E.T., et al.: Antimicrob. Agents. Chemother., 11, 455 (1977),<br></p>

<p>Applications A labelled metabolite of Isoniazid (I821450) in plasma.<br>References Peloquin, C., et al.: Antimicrob. Agents Chemother., 41, 2670 (1997), Peloquin, C., et al.: Drugs, 62, 2169 (2002),<br></p>

<p>Applications A broad spectrum insecticide which actively disrupts the CNS of contacted insects by blocking the passage of chloride ions through GABA receptors. Fipronil is also useful in cannabis testing kits as a component of pesticide mixes (P698235).<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 Ling, S., et al.: App. Entomol. Zool., 44, 543 (2009), Li, X., et al.: Environ. Toxicol. Chem., 29, 127 (2010), Savant, R., et al.: J. Agric. Food Chem., 58, 1447 (2010),<br></p>

<p>Applications Tebutam is used as herbicide and pesticide.<br></p>

<p>Impurity Chlorhexidine Diacetate EP Impurity C<br>Applications An impurity standard for Chlorhexidine.<br></p>

<p>Impurity Azithromycin EP Impurity F / USP Azithromycin Related Compound F<br>Stability Hygroscopic<br>Applications Azithromycin impurity.<br>References Kirst, H., et al.: Antimicrob. Agents Chemother., 33, 1419 (1989), Fouda, H., et al.: Ther. Drug Monit., 17, 179 (1995), Gandhi, R., et al.: J. Pharm. Biomed. Anal., 23, 1073 (2000),<br></p>

<p>Applications Labelled (R)-Cetirizine (C281100). A nonsedating type histamine H1-receptor antagonist. A major metabolite of Hydroxyzine. Pharmacological activity resides primarily in the (R)-isomer. Antihystaminic.<br>References De Vos, C., et al.: Ann. Allergy, 59, 278 (1987), Juhlin, L., et al.: J. Allergy Clin. Immunol., 80, 599 (1987), Fadel, R., et al.: Clin. Allergy, 17, 373 (1987), Gengo, F.M., et al.: Clin. Pharmacol. Ther., 42, 265 (1987)<br></p>

<p>Applications Difenacoum is a 4-hydroxycouramin derivative. Difenacoum is a second generation anticoagulant rodenticide used against rodent pests such as rats and mice.<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 Hadler, M.R. et al.: J. Hygiene, 74, 441 (1975); Rehman, A.B. et al.: J. Pharm., 1, 1 (1982); Quy, R.J. et al.: Crop Prot., 11, 14 (1992);<br></p>

<p>Stability Very Hygroscopic<br>Applications Mildronate-d3 is the labeled analogue of Mildronate (M344450), a novel pharmaceutical composition based on a reverse transcriptase inhibitor and meldonium. May contain a significant amount of water.<br></p>

<p>Applications Cyclacillin is an aminosalicylic semisynthetic penicillin; Antibiotic.<br>References Scheld, W.M., et. al.: Antimicrob. Agents CH., 30, 350 (1986)<br></p>

<p>Applications Fosthiazate is a 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>References Lehotay, S., et al.: J. AOAC Int., 88, 595 (2005); Hiemstra, M., et al.: J. Chromat. A, 1154, 3 (2007)<br></p>

<p>Applications o-Isopropoxyphenol is used in the synthesis of α1-adrenoreceptor antagonist activity of tamsulosin analogues. Also used in the preparation of 5-HT1A receptor agonists.<br>References Sagratini, G. et al.: Eur. J. Med. Chem., 45, 5800 (2010); Franchini, S. et al.: Bioorg. Med. Chem. Lett., 2017 (2010);<br></p>

<p>Applications DEET is an Insect repellent.This compound is a contaminant of emerging concern (CECs).<br>References Gilbert, I.H., et al.: J. Econ. Entomol., 48, 741 (1955), Ambrose, A.M., et al.: Toxicol. Appl. Pharmacol., 1, 97 (1959), Blomquist, L., Acta Pharmacol. Toxicol., 41, 235 (1977), Yeung, J.M., et al.: Drug Metab. Dispos., 16, 600 (1988),<br></p>

<p>Applications An impurity of Rifampamycin (R508000).<br></p>