Toxicology

Applications Labelled analogue of Fenthion Sulfoxide, the sulfoxide anlogue and metabolite of the organothiophosphate insecticide Fenthion (F278000).
Not a dangerous good if item is equal to or less than 1g/ml and there is less than 100g/ml in the package
References Wallnoefer, P. et al.: Pflanzensch.-Nach., 29, 236 (1976); Minelli, E.V. et al.: J. Agric. Food. Chem., 44, 936 (1996);

Applications Validamycin A is an antibiotic fungicide that inhibits trehalase activity in plants, insects, and fungi.

Applications 17α-Cyanomethyl-19-nortestosterone is a metabolite of Norethindrone (N676000), an progesteron used in combination with estrogen as contraceptive.
References Oettel, M., et al.: Pharmazie., 48, 541 (1993); Wong, T.C., et al.: J. Chem. Soc., Perk. Trans., 5, 765 (1988); Schubert, K., et al.: Org. Chem., 20, 143 (1985);

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.
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);

Applications 4,5-Dimethyl-N-2-propen-1-yl-3-thiophenecarboxamide is a derivative of Silthiofam (S465070(M)), which is a fungicide.
References Asrar, J., et al.: PCT Int. Appl. (2003), WO 2003026421 A1

Applications Cyprofuram
Not a dangerous good if item is equal to or less than 1g/ml and there is less than 100g/ml in the package

Applications Lynestrenol is an orally available progestogen hormone used in contraception to avoid hereditary angiodema as well as in treatment of ischemic stroke.
References Saule, C. et al.: Clin. Exp. Allergy, 43, 475 (2013); Beraki, S. et al.: PLoS One., 8, e69233 (2013);

Applications 3-Chloro-5-fluoro Clodinafop Propargyl is an impurity of Clodinafop Propargyl (C584515), which is a herbicide that is used for weed control in wheat.
Not a dangerous good if item is equal to or less than 1g/ml and there is less than 100g/ml in the package
References Aliverdi, A., et al.: Weed Biol. Management, 9, 292 (2009), Hochberg, O., et al.: Weed Res., 49, 37 (2009), Liu, B., et al.: J. Agric. Food Chem., 58, 2673 (2010),

Applications Protected Moxifloxacin metabolite.

Stability Hygroscopic
Applications Iso Desloratadine Hydrochloride Salt is a degradation product of Desloratadine (D290250).
References Anon, et al.: J. Biol. Chem., 266, 15575 (1991), Piwinski. et al.: J. Med. Chem., 34, 457 (1991),

Applications An derivative of Codeine
References Okuda, S., et al.: Chem. Pharm. Bull., 12, 104 (1964),

Applications Umeclidinium Bromide-d10 is the isotope labelled analog of Umeclidinium Bromide (U710000); a compound that is considered as a potentially long-acting antimuscarinic agent.
References Cazzola, M., et al.: Pharmacol., Rev., 64, 450 (2012); Laine, D., et al.: J. Med. Chem., 52, 2493 (2009)

Applications A labelled analogue of the active metabolite of Bosentan, a mixed endothelin receptor antagonist which is used as a vasodilator.
References Clozel, M., et al.: J. Pharmacol. Exp. Ther., 270, 228 (1994), Gutsch, G., et al.: Cardiovasc. Drugs Ther., 10, 717 (1996), Weber, C., et al.: Clin Pharmacol. Ther., 60, 124 (1996), Krum, H., et al.: N. Engl. J. Med., 338, 784 (1998)

Applications 5α-Dihydrocortisol 21-Tetrahydro-2H-pyran-2-yl is an intermediate in the synthesis of Allo-3α-tetrahydro Cortisol 3-O-β-D-Glucuronide Sodium Salt-d7 (A548512), which is a metabolite of Cortisol (H714615) in human plasma.
References Ikegawa, S. et al.: Anal. Chem., 81, 10124 (2009); Kornel, L. et al.: J. Steroid. Biochem., 13, 751 (1980); Kornel, L. et al.: J. Steroid Biochem., 6, 1267 (1975);

Stability Moisture Sensitive
Applications Thiodiphosphoric Acid Tetramethyl Ester is an impurity of Malathion (M111000), a pestanal and used primarily as an insecticide.
Not a dangerous good if item is equal to or less than 1g/ml and there is less than 100g/ml in the package
References Toia, R.F., et. al.: J. Agr. Food Chem., 28, 599 (1980); Josse, R et al.: Chem. Bio., Interact., 209, 76 (2014);

Applications Labeled rac-Ambrisentan (A575860) Nonpeptide endothelin ETA receptor antagonist. Antihypertensive.
References Riechers, H., et al.: J. Med. Chem., 39, 2123 (1996), Billman, G.E., et al.: Curr. Opin. Invest. Drugs, 3, 1483 (2002), Vatter, H., et al.: Clin. Neuropharmacol., 26, 73 (2003),

Applications The minor glucuronide metabolite of Chloramphenicol (C325030).
References Simons, P., et al.: Xenobiotica, 22, 1267 (1992), Kaji, H., et al.: Drug Metab. Dispos., 33, 60 (2005),

Stability Moisture Sensitive, Temperature Sensitive
Applications A metabolite of Lumiracoxib.
References Fu, J., et al.: J. Biol. Chem., 265, 16737 (1990), Goldstein, J., et al.: Am. J. Gastroenterol., 96, 1019 (2001), Flower, R., et al.: Nat. Rev. Drug Discov., 2, 179 (2003), Grillo, M., et al.: Drug Metab. Dispos., 31, 1327 (2003),

Applications Prometon-d3 (methoxy-d3) (CAS# 1219803-43-6) is a useful isotopically labeled research compound.

Applications Analgesic.
References Haddad, P., et al.: Drugs, 62, 1649 (2002), Chiu, P., et al.: J. Pharmacol. Sci., 95, 311 (2004), Dubin, A., et al.: J. Biomol. Screen, 10, 168 (2005),

Applications 3’-Hydroxy Darunavir is a metabolite of Darunavir (D193500), a novel inhibitor of human immunodeficiency virus protease and used in the treatment of HIV infection. It is a COVID19-related research product.
References Vermeir, M., et al.: Drug. Meta. Disp., 37, 809 (2009); Koh, Y., et al.: Antimicrob. Agents Chemother., 47, 3123 (2003), Arasteh, K., et al.: AIDS, 19, 943 (2005), Surleraux, D.L.N.G., et al.: J. Med. Chem., 48, 1813 (2005),

Applications 6-Methyl-1,3,5-triazine-2,4(1H,3H)-dione is a metabolite of metsulfuron methyl that has been found in soil.
References Ye, Q., Sun, J., Wu, J.: Environ. Pollut., 126, 417 (2003)

Applications Prometon-d14 (di-iso-propyl-d14) (CAS# 1219803-45-8) is a useful isotopically labeled research compound.

Applications N-Boc-3-hydroxy-L-valine is used as a reagent in the synthesis of metabolites of PPI-2458, which is a selective, irreversible inhibitor of methionine aminopeptidase-2 (MetAP2). N-Boc-3-hydroxy-L-valine is also used in the preparation of Boceprevir (B674500); an NS3 serine protease inhibitor of hepatitis C virus for the treatment of HCV infection.
References Arico-Muendel, C.C., et al.: Drug Metab. Dispos., 41, 814 (2013); Venkatraman, S., et al.: J. Med. Chem., 49, 6074 (2006)

Applications 2-Methylphenyl Diethylcarbamate-13C6 is an intermediate in the synthesis of o-Cresol-13C6 (C781912). Isotope labelled o-Cresol is a compound used as a disinfectant and have also been used as antiseptic in surgery.
References Razavi, S.M., et al.: Nat. Prod. Res., 26, 2148 (2012); Asadollahi-B. M., et al.: Environ. Toxicol. Pharmacol., 34, 826 (2012);

Stability Hygroscopic
Applications A metabolite of Mosapride (M731000).
References Chen, H., et al.: J. Pharm. Biomed. Anal., 40, 142 (2006), Pedraglio, S., et al.: J. Pharm. Biomed. Anal., 44, 665 (2007), Christopher, L., et al.: Drug Metab. Dispos., 36, 1341 (2008), Curran, M., et al.: Drugs, 68, 981 (2008),

Applications 2,6-Dimethylmorpholine is used as a reagent in the synthesis of novel 3-(difluoromethyl)-1-methyl-1H-pyrazole-4-carboxylic acid amides which can exhibit antifungal activity. 2,6-Dimethylmorpholine is also used towards the synthesis of tetrahydrothiazolopyridine derivatives as potent smoothened antagonists.
Not a dangerous good if item is equal to or less than 1g/ml and there is less than 100g/ml in the package
References Du, S., et al.: Molecules, 20, 8395 (2015); Du, S., et al.: Molecules, 20, 4071 (2015); Ma, H., et al.: Eur. J. Med. Chem., 89, 721 (2015)

Applications 2-Hydroxy Carbamazepine β-D-Glucuronide is a metabolite of 2-Hydroxy Carbamazepine (H884100).

Applications A selective A2A adenosine receptor agonist in myocardial imaging.
References Palle, V.P., et al.: J. A. Drug Dev. Res., 50, 64 (2000), Gordi, T., et al.: J. Clin. Pharmacol., 47, 825 (2007), Zhao, G., et al.: J. Cardiovas. Pharmacol., 52, 467 (2008), Botvinick, E., et al.: J. Nuc. Med. Technol., 37, 14 (2009),

Applications Sofosbuvir (R)-Phosphate is an impurity of PSI-7977 (P839640), a prodrug that is metabolized to the active antiviral agent 2'-deoxy-2'-α-fluoro-β-C-methyluridine-5'-monophosphate and is currently being investigated in phase 3 clinical trials for the treatment of hepatitis C. Studies have profiled PSI-7977 as a nucleotide inhibitor of hepatitis C virus, exerting selective inhibitory effects towards HCV NS5B polymerase.
References Lam, A.M.,et al.: Antimicrob. Agents. Chemotherapy., 56, 3359 (2012); Lam, A.M., et al.: J. Virol., 85, 12334 (2011); Sofia, M.J., et al.: J. Medn. Chem., 53, 7202 (2010)

Stability Light Sensitive
Applications (1R)-trans-γ-Cyhalothrin is an isomer of λ-Cyhalothrin (C988980), which is used as an insecticide.
References Bhavani, B., et al.: Pestol., 33, 42 (2009), Patial, A., et al.: Env. Ecol., 27, 320 (2009), Schleier, J., et al.: J. Med. Entomol., 46, 693 (2009), Yang, D., et al.: Toxicol. App. Pharmacol., 237, 49 (2009),

Applications Used in the preparation of triazole antifungal agents.

Applications 3-Carboxy-N,N,N-trimethyl-2-[(1-oxo-2-hexen-1-yl)oxy]-1-propanaminium chloride salt is used to increase the gastrointestinal absorption of drugs. It is used also to diagnose specific metabolic diseases.
References Yang, S. et al.: J. Chrom., 857, 251 (2007);

Applications Mangiferin is a xanthonoid, a chemical compound found in mangoes and in Anemarrhena asphodeloides rhizomes. Mangiferin has effect of hepatinica and choleretic, and is used to therapy hepatitis. Mangiferin is an anti-inflammatory, antivirotic, central nervous system inhibit function and immunologic suppression. Mangiferin has curative effect on chronic bronchitis. Mangiferin has cytotoxicity effect on hepatocellularcarcinoma ce1l, and may induce apoptosis. Mangiferin has the effect of antioxidation and delaying caducity.
References Tawab, M., et al.; Drug Metab. Dispos., 31, 1065 (2003), Yim, J., et al.: Biol. Pharm. Bull., 27, 1580 (2004), Kim, Y., et al.: J. Microbiol. Biotechnol., 18, 1109 (2008), Joh, E., et al.: Biochem. Pharmacol., 82, 278 (2011),

Applications Phosmet is used as a pesticide to protect crops and vegetation. Insecticide. Useful in cannabis testing kits as a component of pesticide mixes (P698230).
Not a dangerous good if item is equal to or less than 1g/ml and there is less than 100g/ml in the package
References Sipes, N. et al.: Chem. Res. Tox., 26, 878 (2013); Song, Y. et al.: J. Agri. Food Chem., 6, 2625 (2013); Sinderhauf, K. et al.: J. Label. Compd. Radiopharm., 47, 509 (2004);

Applications Metazosulfuron is a herbicide used in paddy fields to control annual and perennial weeds.
References Lee, I., et. al.: The Korean Soc. Weed Sci., 31, 308 (2011)

Stability Hygroscopic
Applications 42-O-tert-Butyldimethylsilyloxyethyl Rapamycin is a useful synthetic intermediate in the synthesis of Everolimus (E945400); an immunosuppressant macrolide and analog of the parent drug Rapamycin (R124000). Everolimus inhibits cytokine-mediated lymphocyte proliferation.
References Dumont, F.J., et al.: Curr. Opin. Invest. Drugs, 2, 1220 (2001); Kovarik, J. M., et al.: Clin. Pharmacol. Ther., 69, 48 (2001); Nashan, B., et al.: Ther. Drug Monit., 24, 53 (2002); Venkata, S.P., et al.: PCT Int. Appl. WO 2012066502 A1 20120524. May 24, 2012

Applications An intermediate in the preparation of HIV-integrase inhibitors
References Itoh, F., et al.: Chem. Pharm. Bull., 43, 230 (1995), Summa, V., et al.: J. Med. Chem., 51, 5843 (2008),

Applications N-Acetyl Cefixime is the N-acetylated analogue and impurity of the third generation cephalosporin antibiotic, Cefixime (C242800).

Applications (2R,4S)-Itraconazole is an enantiomer of Itraconazole (I937500), an orally active antimycotic structurally related to Ketoconazole. Antifungal. It is a COVID19-related research product.
References Espinel-Ingroff, A., et al.: Antimicrob. Agents Chemother., 26, 5 (1984), Heykants, J., et al.: Mycoses, 32, Suppl 1, 67 (1989), Sugar, A.M.,et al.: Curr. Clin. Top. Infect. Dis., 13, 74 (1993),

Impurity Lamivudine EP Impurity D
Stability Hygroscopic
Applications ent-Lamivudine (Lamivudine EP Impurity D) is an enantiomer of Lamivudine (L172500); an antiviral that inhibits HIV-reverse transcriptase.
References Pepe, G. et al.: Eur. J. Med. Chem., 31, 775 (1996); Marr, E. et al.: Antiviral Res., 28, 1 (1995); Parikh, U.M. et al.: Antimicrob. Agents Chemother., 49, 1139 (2005);

Impurity Clarithromycin EP Impurity L
Applications Clarithromycin (9Z)-Oxime (Clarithromycin EP Impurity L) is an impurity of Clarithromycin (C559750); a semi-synthetic macrolide antibiotic and derivative of Erythromycin (E650000).
References Esteban, J., et al.: Tetrahedron Lett., 45, 5563 (2004); Morgan, D., et al.: J. Chromatogr., 502, 351 (1990); Benson, C., et al.: Eur. J. Clin. Microbiol., 6, 173 (1987); Boyanova, L., et al.: J. Med. Microb., 61, 85 (2012); Lin, Z., et al.: Toxicol. Sci., 126, 114 (2012)

Applications Isotope labelled 4-Chlorobenzoic Acid is a benzoic acid analogue that showed antifungal activity against strains of Aspergillus flavus, Aspergillus fumigatus and Aspergillus terreus, causative agents of human aspergillosis, in in vitro bioassays. It is used as a preservative.
References Rep, M., et al.: J. Biol. Chem., 275, 8290 (2000), Jaeger, T., et al.: Biofactors, 27, 109 (2006), Kim, J., et al.: Fungal Biology, 114, 817 (2010),

Applications 2,5-Thiazolylmethyl Diacarbonate is an impurity of Ritonavir (R535000), a selective HIV protease inhibitor.
References Daluge, S., et al.: Antimicrob. Agents Chemother., 38, 1590 (1994); Ammaranond, P., et al.: J. Clin. Virol., 26, 153 (2003); Harrigan, P., et al.: J. Infect. Dis., 191, 339 (2005); Miller, J., et al.: Bioorg. Med. Chem. Lett., 16, 1788 (2006); Koppala, S., et al.: J. Chromatogr. Sci., 53, 662 (2015);

Applications 3-​Methoxy-​4-​methyl-​1H-​1,​2,​4-​triazol-​5(4H)​-​one Hydrate, is a Triazole (T767410) derivative that was used in microwave synthesis of 1,2,4-triazolone derivatives possessing antifungal activity. 3-​Methoxy-​4-​methyl-​1H-​1,​2,​4-​triazol-​5(4H)​-​one is also a key intermediate for sulfonylurea herbicides, such as flucarbazone.
References Su, J., Shang, Z.: Nongyao, 49, 563 (2010); Sun, N., et al.: BioMed Res. Int., 1 (2015);

Stability Temperature Sensitive
Applications Antibiotic A21 is a new polyene macrolide Amphotericin amide antibiotic with antimycotic effectiveness.
References Flores-Romero, J. D., et al.: Org. Process Res. Dev., 20, 1529 (2016), Antillon, A., et al.: PLoS One, 11, 9 (2016)

Applications 2,3-Dimethylbenzoquinone is a reagent in the preparation of hydroxycinnolines which has antifungal activity.
References Ryu, C., et al.: Bioorg. Med. Chem. Lett., 16, 1850 (2006)