Sulfonamides and Derivatives

Impurity Glimepiride Ethyl Ester Impurity
Applications Intermediate for the preparation of Glimepiride (G410150) and some substituted sulfonyl urea antidiabetics. Glimepiride Ethyl Ester Impurity

Applications Trimethoprim lactate salt is an antibacterial agent.
References Lees, G. et al.: Brit. J. Pharmacol., 73, 535 (1981);

Impurity Nimesulide EP Impurity D
Stability Light Sensitive
Applications 4-Nitro-2-phenoxyaniline has been shown to have good AT1 Angiotension Receptor Antagonist activity when combined with Schiff bases.
References Shreenivas, M.T., et. al.: J. Pharm. Sci. Technol., 1, 88 (2009)

Impurity Etodolac EP Impurity J
Applications Decarboxy Etodolac (Etodolac EP Impurity J) is an impurity of Etodolac (racemic, E933100), which is a non-steroidal anti-inflammatory drug (NSAID) that selectively inhibits cyclooxygenase-2 (COX-2). Etodolac displays anti-inflammatory effects in both adjuvant arthritic and normal rats. Etodolac is anti-inflammatory.
References Humber, L.G., et al.: Med. Res. Rev., 7, 1 (1987); Balfour, J.A, et al.: Drugs, 42, 274 (1991); Kato, et al.: J. Pharm. Pharmacol., 53 1679 (2001)

Applications 4-Isobutylbenzoic Acid is used in the studies for the identification of the degradation products and potential impurities in Ibuprofen. 4-Isobutylbenzoic Acid is also applied in the determination of related substances in dexibuprofen using HPLC.
References Dondoni, A., et al.: Farmaco, Edizione Pratica, 41, 237 (1986); Xie, L., et al.: Zhongguo Yaoshi, 19, 1088 (2016)

Applications Anti-inflammatory. Selective cyclooxygenase-2 (COX-2) inhibitor.
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 Glasson, et al.: Biochem, Pharmacol., 18, 633 (1969), Boissier, et al.: Therapie, 26, 211 (1971), Sorenson, J.R.J., et al.: J. Med. Chem., 19, 135 (1976), Barnett, J., et al.: Biochim. Biophys. Acta, 1209, 130 (1994), Johnson, J.L., et al.: Arch. Biochem. Biophys., 324, 26 (1995),

Stability Hygroscopic
Applications 4-Amino-4'-hydroxydiphenylsulfone is a diaryl sulfone with antileprotic activity. 4-Amino-4'-hydroxydiphenylsulfone is an antibacterial agent.
References Colwell, W.T. et al.: J. Med. Chem., 17, 142 (1974); Agrawal, V.K. et al.: Acta Microb iol. Immunol. Hung., 50, 385 (2003);

Impurity Glipizide EP Impurity H
Applications 1-Cyclohexyl-3-(p-sulfamoylphenethyl)urea (Glipizide EP Impurity H) is an impurity of Glipizide (G410225).
References Jurca, B. et al.: J. Therm. Anal. Calor., 62, 859 (2000);

Applications Ibuprofen (I140000) impurity, an anti-inflammatory compound.
References Rubin, A., et al.: J. Pharm. Sci., 74, 82 (1985), Tracy, T., et al.: Drug Metab. Dispos., 20, 322 (1992),

Applications Penoxsulam is an acetolactate synthase inhibitor herbicide developed for controlling grasses, sedges, and broadleaf weeds in rice culture.
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 Jabusch, T., and Tjeerdema, R.: J. Agric. Food Chem. 53, 18, 7179-183 (2005); Bamcjero, M., et al.: Sci. Total Environ. 807, 1, 160793 (2021)

Applications A major metabolite of Sulfadiazine.
References Woolley, J., et al.: Drug Metab. Dispos., 7, 94 (1979), Nielsen, P., et al.: Biochem. Pharmacol., 35, 2509 (1986), Anari, M., et al.: Anal. Chem., 76, 823 (2004), Edlund, P., et al.: J. Pharm. Biomed. Anal., 34, 1079 (2004),

Impurity Acetazolamide Disulphide Impurity
Applications bis(2-Acetamido-1,3,4-thiadiazol-5-yl) Disulfide is an impurity of Acetazolamide (A161500), a carbonic anhydrase inhibitor. Diuretic. (Acetazolamide Disulphide Impurity)
References Srinivasu, P., et. al.: J. Pharmaceut. Biomed. Anal., 52, 142 (2010); Vitale, R., et al.: J. Med. Chem., 52, 5990 (2009); Bell, H., et al.: Am. J. Physiol., 297, R370 (2009); Maresca, A., et al.: Bioorg. Med. Chem. Lett., 19, 4929 (2009); Liu, Y., et al.: Anal. Bioanal. Chem., 395, 591 (2009)

Applications Bumetanide Butyl Ester is an intermediate in the preparation of Bumetanide
References Petzinger, E., et al.: Am. J. Physiol., 265, G942 (1993);

Impurity Paracetamol EP Impurity H/ Acetaminophen impurity H
Applications Acetaminophen Acetate is an impurity of Acetaminophen (A161220), an analgesic and antipyretic agent used as a pain reliever to treat headache, muscle aches, and arthritis (1,2,3).
References (1) McGill, M. R. and Jaeschke, H. Pharm Res. 30, 2174 (2013)(2) Fairbrother, J.E., et al.: Anal. Profiles Drug Subs., 3, 1 (1974) (3) Hinson, J.A., et al.: Rev. Biochem. Toxicol., 2, 103 (1980)

Applications Used as an antibacterial.
References Kapoor, V.K., et al.: Anal. Profiles Drug Subs., 17, 571 (1988)

Stability Light Sensitive, Temperature Sensitive
Applications A metabolite of Dapsone.
References Preuss, C.V., et al.: Biochem. Pharmacol., 51, 1661 (1996), F., et al.: J. Pharmacol. Exp. Ther., 323, 771 (2007), Roychowdhury, S., et al.: Drug Metab. Disposition, 35, 676 (2007), Obach, R., et al.: Environ. Mol. Mutagen., 49, 631 (2008), Veggi, L., et al.: Life Sci., 83, 155 (2008), Khan,

Applications Azoxydapsone is a primary urinary N-oxidation metabolite of Dapsone (D193250); an antibacterial used in the treatment of dermatitis herpetiformis.
References Israili, Z.H., et al.: J. Pharmacol. Exp. Ther., 187, 138 (1973); Cucinell, S.A., et al.: Am. J. Trop. Med. Hyg., 21, 322 (1972); Francis, J., et al.: Br. J. Pharmacol., 5, 565 (1950); Uetrecht, J., et al.: Clin. Dermatol., 7, 111 (1989); Reszka, K., et al.: Chem. Res. Toxicol., 22, 1137 (2009); Santos, J., et al.: Bioorg. Med. Chem., 17, 3795 (2009); Varma, M., et al.: J. Med. Chem., 52, 4844 (2009)

Applications Sulfacetamide is an antibiotic used for the treatment of skin infections and urinary tract infections. Sulfacetamide is also used to treat acne and seborrheic dermatitis. Sulfacetamide was investigated for potential anti-inflammatory properties
References Wittwer, M.B., et al.: J. Med. Chem., 56, 781 (2013); Wang. X., et al.: Afr. J. Micriobiol., 6, 4533 (2012); Yu, B., et al.: Euro. J. Med. Chem., 46, 5833 (2011);