Sulfonamides and Derivatives

<p>Impurity Aceclofenac EP Impurity F<br>Applications A 2-[(2,6-dichlorophenyl)amino]phenylacetoxyacetyl derivative as anti-inflammmatory and analgesic agent. Aceclofenac EP Impurity F.<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>Applications A metabolite of Furosemide (F865000).<br></p>

<p>Applications Acetaminophen Dimer is an oxidatively couple dimer of Acetaminaphen (A161220), an analgesic and antipyretic agent used as a pain reliever to treat headache, muscle aches, and arthritis (1). Acetaminophen Dimer along with other p-acetamidophenol analogs were used to determine peroxidase activities (2,3).<br>References (1) McGill, M. R. and Jaeschke, H. Pharm Res. 30, 2174 (2013)(2) Potter, D.W. et al.: Mol. Pharmacol., 29, 155 (1986) (3) Shiga, M. et al.: Anal. Sci., 11, 195 (1995)<br></p>

<p>Impurity Etodolac EP Impurity C<br>Applications (-)-Desethyl Methyl Etodolac (Etodolac EP Impurity C) is an analog of Etodolac (E933100), a non-steroidal anti-inflammatory drug (NSAID) that selectively inhibits cyclooxygenase-2 (COX-2).Take not the R/S assignment is not determined.<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 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);<br></p>

<p>Applications N-[[4-[2-[[(3-Ethyl-2,5-dihydro-4-methyl-2-oxo-1H-pyrrol-1-yl)carbonyl]amino]ethyl]phenyl]sulfonyl]carbamic Acid Methyl Ester, is an impurity of Glimepiride (G410150), which is a medium- to long-acting sulfonylurea antidiabetic drug.<br>References Ratheiser, K., et al.: Arzneim.-Forsch., 43, 856, (1993);<br></p>

<p>Applications α-Hydroxy Trimethoprim is an impurity of Trimethoprim (T795615), an antibacterial agent that is commonly prescribed in conjunction with Sulfametoxazole (S699086) to treat patients afflicted with urinary tract infections.<br>References Dauber-Osguthorpe, P., et al.: Proteins, 4, 31, (1988); Darrell, J., et al.: J. Clin. Pathol., 21, 202 (1968); Zhanel, G., et al.: Antimicrob. Agents Ch., 44, 1089 (2000)<br></p>

<p>Applications 4-O-Desmethyl 4-O-Ethyl Trimethoprim is a derivative of Trimethoprim (T795615), an antibacterial agent that is commonly prescribed in conjunction with Sulfametoxazole (S699086) to treat patients afflicted with urinary tract infections. 4-O-Desmethyl 4-O-Ethyl Trimethoprim also has potential antibacterial activity.<br>References Roth, B., et al.: J. Med. Chem., 24, 933 (1981)<br></p>

<p>Applications 2,3-Dihydro-2-methyl-1H-indol-1-amine Hydrochloride is an synthetic intermediate of Indapamide (I500100), an antihypertensive agent and a diuretic.<br>References Leary, et al.: Curr. Ther. Res., 15, 571 (1973), Kyncl, J., et al.: Arzneim.-Forsch., 25, 1491 (1975), DiFeo, T.J., et al.: Anal. Profiles Drug Subs. Excip., 23, 229 (1994),<br></p>

<p>Impurity Furosemide EP Impurity C<br>Applications A metabolite of Furosemide.<br>References Smith, D., et al.: Drug Metab. Disposit., 8, 337 (1980), Andreasen, F., et al.: Br. J. Clin. Pharmacol., 14, 306 (1982), Choi, Y., et al.: J. Pharm. Sci., 80, 638 (1991)<br></p>

<p>Impurity Tolnaftate EP Impurity D<br>Applications N,3-Dimethylaniline (Tolnaftate EP Impurity D) is a Tolnaftate (T535400) impurity.<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 Erickson, R., et al.: Environ. Toxicol. Chem., 25, 1512 (2006), Kelly, B., et al.: Science, 317, 236 (2007),<br></p>

<p>Impurity Ibuprofen EP Impurity J<br>Applications 1-Oxo Ibuprofen (Ibuprofen EP Impurity J), is a degradation product of Ibuprofen arising from oxidative and thermal treatments. 1-Oxo Ibuprofen is the Ibuprofen impurity J.<br>References Heikkinen, L., et al.: Acta Pharm. Fenn., 92, 275 (1983), Vargas, F., et al.: Pharmazie, 11, 767 (1991), Lee, J., et al.: Pharm. Res., 9, S170 (1995),<br></p>

<p>Impurity Acetazolamide EP Impurity B<br>Applications N-1,3,4-Thiadiazol-2-ylacetamide is an impurity of Acetazolamide (A161500). Acetazolamide EP Impurity B<br>References Zarghi, A., et al.: J. Pharm. Biomed. Anal., 28, 169 (2002), Subbarao, D., et al.: J. Chromatogr., 67, 841 (2008),<br></p>

<p>Applications Vaborbactam is a non-β-lactam β-lactamase inhibitor. While not effective as an antibiotic by itself, it restores potency to existing antibiotics by inhibiting the beta-lactamase enzymes that would otherwise degrade them. When combined with an appropriate antibiotic it can be used for the treatment of gram-negative bacterial.<br>References Hecker, S.J., et al.: Journal of Medicinal Chemistry, 58, 3682 (2015);<br></p>

<p>Applications Sulfadimethoxine-d6 is deuterium labelled sulfadimethoxine-d6, which is an antibacterial.<br>References Seki, et al.: Arzneim.-Forsch., 15, 1441 (1965); Bohni, et al.: Chemotherapy, 14, 195 (1969)<br></p>

<p>Applications Nitrobenzene is a compound that exhibits chromosomal genotoxicity against hamster lung cells, and has the potential to cause cancer in humans (1,2). Nitrobenzene is also used as a starting material to synthesize 4-Aminophenol (A618920) through catalytic hydrogenation (3). 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. Bonacker, D. et al.: Arch. Toxicol. 2004 Jan;78(1):49-57.2. Hsu, C. et al.: J. Environ. Sci. Health. C. Environ. Carcinog. Ecotoxicol. Rev. 2007 Apr-Jun;25(2):155-843. Rode, C. et al.: Org. Proc. Res. Dev. 1999 Nov;3(6), pp 465–470<br></p>

<p>Applications Cotrimoxazole is an antibiotic. Pseudomonas aeruginosa has a drug resistant rate of 66% in the years 2010-2013.<br>References Sun, D., et. al.: Zhonghua Yiyuanganranxue Zazhi, 24, 345 (2014)<br></p>

<p>Impurity Mesalazine EP Impurity L<br>Applications The toxicity of halogenated benzoic acids was found to be directly related to the compound's hydrophobicity. Toxicity and quantitative structure-activity relationships of benzoic acids to Pseudokirchneriella subcapitata.<br>References Moore, D., et al.: Environ. Toxicol. Chem., 16, 794 (1997), Zhao, Y., et al.: Sci. Total Environ., 216, 205 (1998), Fiorentino, A., et al.: J. Agric.Food Chem., 51, 1005 (2003),<br></p>

<p>Impurity Triamterene EP Impurity B/ Triamterene USP Related Compound B<br>Applications 2,7-Diamino-6-phenyl-4-pteridinol has potential as a pteridine diuretic. Impurity in the synthesis of Triamterene (T767325), a weak diuretic with potassium sparing properties; blocks Na+ reuptake in the kidneys.<br>References Osdene, et al.: J. Med. Chem., 10, 431 (1967), Kapoor, V.K., et al.: Anal. Profiles Drug Subs. Excip., 23, 571 (1994); Weinstock, J. et al.: J. Med. Chem., 11, 573 (1968);<br></p>

<p>Impurity Sulfasalazine Impurity I<br>Stability Light Sensitive<br>Applications Mordant Yellow 10 is a monoazo dye used in wool textiles. Mordant Yellow 10 is used as organic reagent for spectrometric determination of iron(III) as well as in the study of other metal complexations.<br>References Ledneva, I.A. Izvest. Vyssh. Ucheb. Zav. Tekh. Teks. Prom., 5, 58 (1986); Vladescu, L. et al.: Rev. Roum. Chem., 54, 85 (2009); Gupta, P.N. et al.: Asian J. Chem., 4, 15 (1992);<br></p>

<p>Applications 4-Acetaminophen-d3 Sulfate is deuterium labeled metabolite of Acetaminophen (A161220), an analgesic and antipyretic agent (1,2,3).<br>References (1) Lloyd, A., et al.: Biochim. Biophys. Acta., 52, 413 (1961) (2) Purohit, A., et al.: J. Steroid Biochem. Mol. Biol., 86, 423 (2003) (3) Winum, J., et al.: J. Med. Chem., 46, 2197 (2003)<br></p>

<p>Applications Antibacterial.This compound is a contaminant of emerging concern (CECs).<br>References Kapoor, V.K., et al.: Anal. Profiles Drug Subs. Excip., 22, 389 (1993),<br></p>

<p>Applications Deuterated Trimethoprim, an antibacterial.<br>References Manius, G.J., et al.: Anal. Profiles Drug Subs., 7, 445 (1978), Roth, B., et al.: J. Med. Chem., 23, 379 (1980), Brogden, R.N., et al.: Drugs, 23, 405 (1982),<br></p>

<p>Impurity Piroxicam EP Impurity D<br>Applications Piroxicam impurity D.<br>References Lombardino, J., et al.: J. Med. Chem., 14, 1171 (1971), Turck, D., et al.: Clin. Drug Invest., 9, 270 (1995),<br></p>

<p>Applications Ibuprofen Alcohol (Ibuprofen EP Impurity P) is an impurity of Ibuprofen (I140000). Ibuprofen impurity P as per EP.<br>References Haikala, V., et al.: J. Pharm. Sci., 80, 456 (1991), Zhao, J., et al.: Anal. Chem., 72, 302 (2000), Kucera, R., et al.: J. Pharm. Biomed. Anal., 38, 609 (2005),<br></p>

<p>Applications A sulfonylurea hypoglycemic agent. Used as an antidiabetic.<br>References Ratheiser, K., et al.: Arzneim.-Forsch., 43, 856, (1993),<br></p>

<p>Applications A Sulfamethoxazole metabolite.<br>References Gill, H., et al.: Br. J. Clin. Pharmacol., 42, 347 (1996), Winter, H., et al.: Clin. Pharmacol. Ther., 76, 579 (2004), Vyas, P., et al.: Biochem. Pharmacol., 70, 275 (2005), Vyas, P., et al.: Drug Metab. Dispos., 34, 16 (2006),<br></p>

<p>Impurity Aceclofenac EP Impurity H<br>Applications A 2-[(2,6-dichlorophenyl)amino]phenylacetoxyacetyl derivative as anti-inflammmatory and analgesic agent. (Aceclofenac EP Impurity H)<br></p>

<p>Applications A drug used to treat tuberculosis.<br>References Marrero-Ponce, Y., et al.: Bioorg. Med. Chem., 13, 2881 (2005),<br></p>

<p>Applications Trimethoprim (T795615) derivative. Antibacterial properties.<br></p>

<p>Applications Pyroxasulfone is an inhibitor of the biosynthesis of very-long-chain fatty acids. Pyroxasulfone is also used to control grass weed species in pre-emergence in major field crops.<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 Busi, R., et al.: Pest. Manag. Sci., 72, 1665 (2016)<br></p>

<p>Applications Napropamid is used as a pesticide.<br>References She-feng, J., et al.: Nanjing Nongye Daxue Xuebao, 35, 137 (2012);<br></p>

<p>Applications Analgesic, antipyretic. Component of APC tablets, analgesic mixture also containing aspirin and caffeine. Phenacetin is reasonably anticipated to be a human carcinogen; analgesic mixtures containing Phenacetin are listed as known human carcinogens.<br>References Boyd, et al.: Toxicol. Appl. Pharmacol., 1, 240 (1959), Dubach, C.U., et al.: N. Engl. J. Med., 308, 357 (1983),<br></p>

<p>Impurity Etodolac EP Impurity K<br>Applications 1,8-Diethyl-1,3,4,9-tetrahydro-pyrano[3,4-b]indole-1-acetic Acid Methyl Ester (Etodolac EP Impurity K) is a derivative of Etodolac.<br>References Caldwell, J., et al.: Biochem. Pharmacol., 37, 105 (1988), Drummer, O., et al.: J. Anal. Toxicol., 17, 225 (1993)<br></p>

<p>Applications Diclosan is used in the treatment of halogenated phenolic compounds by sequential tri-metal reduction and laccase-catalytic oxidation.<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 Dai, Y., et al.: Water Res., 71, 64 (2015);<br></p>

<p>Applications Furosemide inhibits ion co-transport in the kidney. Furosemide is used as a diuretic. Non-competitve subtype-specific blocker of GABAA. Neuroprotective &amp; Neuroresearch Products.<br>References Goldenthal, E.I.: Toxicol. Appl. Pharmacol., 18, 185 (1971), Benet, L.Z.: J. Pharmacokinet. Biopharm., 7, 1 (1979); Korpi, E. et al.: Mol. Pharmacology, 47, 283 (1995);<br></p>

<p>Applications Anti-inflammatory. Selective cyclooxygenase-2 (COX-2) inhibitor.<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 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),<br></p>

<p>Applications The major metabolite of Ibuprofen; may reduce the risk of cataract by protecting lenticular enzymes.<br>References Bhuyan, K., et al.: Life Sci., 38, 1463 (1986), Blakytny, R., et al.: Biochem. J., 288, 303 (1992),Ganea, E., et al.: Eur. J. Biochem., 231, 181 (1995), Mitchell, J., et al.: Br. J. Pharmacol., 128, 1121 (1999),<br></p>

<p>Applications Labelled Hydroflumethiazide. Antihypertensive; diuretic.<br>References Piala, J.J., et al.: J. Pharmacol. Exp. Ther., 134, 273 (1961), Orzech, C.E., et al.: Anal. Profiles Drug Subs., 7, 297 (1978),<br></p>

<p>Impurity Piroxicam EP Impurity G<br>Applications Piroxicam impurity G.<br>References Lombardino, J., et al.: J. Med. Chem., 14, 1171 (1971), Turck, D., et al.: Clin. Pharmacol., 36, 79 (1996), Bihovsky, R., et al.: Bioorg. Med. Chem. Lett., 14, 1035 (2004),<br></p>

<p>Impurity USP Trimethoprim Related Compound A<br>Applications 6-Amino-5-[(3,4,5-trimethoxyphenyl)methyl]-2(1H)-pyrimidinone, is an impurity of Trimethoprim (T795615), an antibacterial agent.<br>References Popov, V. M., et al.: Bioorg. Med. Chem. Lett., 16, 4366 (2006); Brogden, R.N., et al.: Drugs, 23, 405 (1982);<br></p>

<p>Applications A sulfonylurea hypoglycemic agent. Used as an antidiabetic.<br>References Ratheiser, K., et al.: Arzneimittel-Forsch., 43, 856, (1993),<br></p>

<p>Impurity Indapamide USP Related Compound A/ Indapamide EP Impurity B<br>Applications A metabolite of Indapamide (M5). A dehydrogenation pathway by cytochromes P450. Indapamide USP Related Compound A<br>References Tamura A., et al.: Chem. Pharm. Bull., 38, 225 (1990), Harlow, G.R., et al.: J. Biol. Chem., 272, 5396 (1997), Ozden, T., et al.: Pharm. Pharmacol. Commun., 4, 397 (1998), Gruciani, G., et al.: J. Med. Chem., 48, 6970 (2005), Sun, H., et al.: Drug. Metab. Dispos., 37, 672 (2009),<br></p>

<p>Impurity Bumetanide Impurity A<br>Applications 3-Nitro-4-phenoxy-5-sulfamoylbenzoic Acid is a compound related to Piretanide (P508700) and an intermediate in the production of Bumetanide, Bumetanide Impurity A (B689550).<br></p>

<p>Impurity Ibuprofen EP Impurity G<br>Applications Ibuprofen Dimer (Ibuprofen EP Impurity G) is a dimer impurity of Ibuprofen (I140000).<br></p>

<p>Applications Labelled Ibuprofen, a selective cyclooxygenase inhibitor (IC50=14.9uM). Inhibits PGH synthase-1 and PGH synthase-2 with comparable potency.<br>References Busson, M., et al.: J. Int. Med Res., 14, 53 (1986), Meade, E.A., et al.: J. Biol. Chem., 268, 6610 (1993), Davies, N.M., et al.: Clin. Pharmacokinet., 34, 101 (1998),<br></p>

<p>Impurity Glimepiride EP Impurity B/ USP Glimepiride Related Compound B<br>Applications 4-[2-[(3-Ethyl-4-methyl-2-oxo-3-pyrrolin-1-yl)carboxamido]ethyl]benzenesulfonamide (Glimepiride EP Impurity B) is an intermediate for the preparation of Glimepiride.<br></p>

<p>Applications N,N-Dimethylnicotinamide-2-sulfonamide (cas# 112006-75-4) is a compound useful in organic synthesis.<br></p>

<p>Applications 2-Amino-5-chlorobenzenesulfonamide is a metabolite of IDRA-21 (I232500), which inhibits AMPA receptor desensitization and enhances cognition by a related mechanism. IDRA-21 is more able to cross the blood-brain barrier than Cyclothiazide (C988960).<br>References Cannazza, G., et. al.: Bioorg. Med. Chem. Lett., 19, 1254 (2009); Zivkovic, et al.: J. Pharmacol. Exp. Ther., 272, 300 (1995); Dingledine, R., et al.: Pharmacol. Rev., 51, 7 (1999); Sun, Y., et al.: Nature, 417, 245 (2002); Thomsen, R., et al.: J. Med. Chem., 49, 3315 (2006)<br></p>

<p>Applications Indomethacin Diamide is an impurity of Indomethacin (I641000), an non-steroidal anti-inflammatory drug commonly used in the treatment of fever, pain and swelling.<br>References Salari, H., et al.: Prostagland. Leukotrienes Med., 13, 53 (1984), Lehmann, J.M., et al.: J. Biol. Chem., 272, 3406 (1997)<br></p>

<p>Applications Labelled Hydrochlorothiazide (H714560). Hydrochlorothiazide is a carbonic anhydrase inhibitor as a diuretic.<br>References Piala, J.J., et al.: J. Pharmacol. Exp. Ther., 134, 273 (1961), Deppeler, H.P., et al.: Anal. Profiles Drug Subs., 10, 405 (1981),<br></p>

<p>Applications A non-peptide proteaseinhibitor.<br>References Ayoyama, T., et al.: Chem. Pharm. Bull., 33, 1458 (1985)<br></p>

<p>Applications The isotopically labelled drug Sulfadiazine. Antibacterial.<br>References Bohni, et al.: Chemotherapy, 14, 195 (1969), Carr, et al.: Antimicrob. Agents Chemother., 4, 585 (1973), Stober, H., et al.: Anal. Profiles Drug Subs., 11, 523 (1982),<br></p>

<p>Applications Intermediate for the preparation of Glimepiride.<br></p>

<p>Stability Hygroscopic<br>Applications 4-Acetamidophenyl β-D-Glucuronide is a major urinary metabolite of Acetaminophen (A161220) (Paracetamol) in human (1). Acetaminophen is an analgesic and antipyretic agent and used as a pain reliever to treat headache, muscle aches, and arthritis (2,3).<br>References (1) Johnston, D., et al.: J. Chem. Res., Synop., 12, 406 (1988)(2) McGill, M. R. and Jaeschke, H. Pharm Res. 30, 2174 (2013)(3) Fairbrother, J.E., et al.: Anal. Profiles Drug Subs., 3, 1 (1974)<br></p>

<p>Applications Degradation product/impurity of trimethoprim (T795615).<br>References Roth, B., et al.: J., Med. Pharm. Chem., 5, 1103 (1962), Bergh, J., et al.: J. Pharm. Sci., 78, 348 (1989),<br></p>

<p>Impurity Ibuprofen EP Impurity K<br>Applications rac 2-(4-Formylphenyl)propionic Acid (Ibuprofen EP Impurity K) is a degradation product of Ibuprofen arising from oxidative and thermal treatments. Ibuprofen impurity K.<br>References Heikkinen, L., et al.: Acta Pharm. Fenn., 92, 275 (1983), Vargas, F., et al.: Pharmazie, 11, 767 (1991), Lee, J., et al.: Pharm. Res., 9, S170 (1995),<br></p>

<p>Impurity Etodolac EP Impurity G<br>Applications 1-Propyl Etodolac (Etodolac EP Impurity G) is an impurity in the synthesis of Etodolac (E933100), may have use in the treatment of myeloma. COX-1/COX-2/β-catenin inhibitors, or anti-inflammatory agent.<br>References Robinson, W. et al.: J. Pharm. Exp. Ther., 203, 729 (1977); 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);<br></p>

<p>Applications The R-enantiomer of Etodolac (E933090). Anti-inflammatory; analgesic.<br>References Boxenbaum, H., et al.: J. Pharmacokin. Biopharm., 10, 201 (1982), Iwatsubo, T., et al.: Biopharm. Drug Dispos., 17, 273 (1996), Obach, R., et al.: J. Pharmacol. Exp. Ther., 283, 46 (1997),<br></p>

<p>Impurity Piroxicam EP Impurity H<br>Applications Piroxicam Impurity H.<br>References Lombardino, J., et al.: J. Med. Chem., 14, 1171 (1971), Turck, D., et al.: Clin. Drug Invest., 9, 270 (1995),<br></p>

<p>Applications Phenacetin-d3 is the labeled analogue of Phenacetin (P294580), an analgesic, antipyretic; component of APC tablets, analgesic mixture also containing aspirin and caffeine. Phenacetin is reasonably anticipated to be a human carcinogen; analgesic mixtures containing Phenacetin are listed as known human carcinogens.<br>References Boyd, et al.: Toxicol. Appl. Pharmacol., 1, 240 (1959); Dubach, C.U., et al.: N. Engl. J. Med., 308, 357 (1983)<br></p>

<p>Applications 4-Demethyltrimethoprim is an impurity of Trimethoprim (T795615), an antibacterial agent.<br>References Mengelers, M.J.B., et al.: J. Vetern. Pharmacol. Therap., 20, 24 (1997); Manius, G.J., et al.: Anal. Profiles Drug Subs., 7, 445 (1978), Roth, B., et al.: J. Med. Chem., 23, 379 (1980), Brogden, R.N., et al.: Drugs, 23, 405 (1982),<br></p>

<p>Applications 2-Amino-4-chloro-5-sulfamoyl-o-benzotoluidide is an intermediate in the synthesis of Metolazone (M338750); a diuretic and antihypertensive agent.<br>References Curry, C.L., et al.: Clin. Ther., 9, 47 (1986); Kiyingi, A., et al.: Lancet, 335, 29 (1990); Chen, G., et al.: Shenyang Yaoke Daxue Xuebao, 21, 109 (2004)<br></p>

<p>Impurity Acetazolamide EP Impurity C<br>Applications Acetazolamide intermediate. Acetazolamide EP Impurity C<br>References Almajan, G., et al.: Bioorg. Med. Chem. Lett., 15, 2347 (2005), Talath, S., et al.: Eur. J. Med. Chem., 41, 918 (2006), Srinivasu, P., et al.: J. Pharm. Biomed. Anal., 52, 142 (2010),<br></p>

<p>Stability Light Sensitive<br>Applications A labelled metabolite of Dapsone.<br>References Preuss, C.V., et al.: Biochem. Pharmacol., 51, 1661 (1996),<br></p>

<p>Applications 4,4’-Dichlorodiphenyl Sulfone is an impurity of Dapson (D193250), an antibacterial used in the treatment of dermatitis herpetiformis.<br>References Carlsson, L., et al.: J. Chem. Info. Model., 49, 2551 (2009); Chan, T.S., et al.: Toxicol. App. Pharmacol., 232, 456 (2008);<br></p>

<p>Applications Mesotrione is a herbicide that works by inhibiting 4-hydroxyphenylpyruvate dioxygenase (HPPD), a crucial enzyme for the biosynthesis of carotenoid in plants. Mesotrione is also a synthetic analog of lepospermone.<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 Deng, L., et al.: Indus. Crops. Prod., 39, 154 (2012); Pileggi, M., et al.: Chemosphere., 86, 1127 (2012); McElroy, J., S., Hort. Technol.,22, 627 (2012);<br></p>

<p>Applications N2-Methyl Trimethoprim is an impurity of Trimethoprim (T795615), an antibacterial agent that is commonly prescribed in conjunction with Sulfametoxazole (S699086) to treat patients afflicted with urinary tract infections.<br>References Dauber-Osguthorpe, P., et al.: Proteins, 4, 31, (1988); Darrell, J., et al.: J. Clin. Pathol., 21, 202 (1968); Zhanel, G., et al.: Antimicrob. Agents Ch., 44, 1089 (2000)<br></p>

<p>Applications Labelled sulfonamide antiseizure agent; blocks repetitive firing of voltagesensitive sodium channels and reduces voltage-sensitive T-type calcium currents. Heterocyclic methanesulfonide with anticonvulsant properties. The compound is under investigation for potential therapeutic use as an antiepileptic drug. Anticonvulsant.<br>References Masuda, Y., et al.: Arzneim.-Forsch., 30, 477 (1980), Hammond, E.J., et al.: Gen. Pharmacol., 18, 303 (1987), Schmidt, D., et al.: Epilepsy Res., 15, 67 (1993), Sorkin, E.M., et al.: Drugs, 45, 760 (1993),<br></p>

<p>Applications A labelled antibacterial used in the treatment of dermatitis herpetiformis.<br>References 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),<br></p>

<p>Applications 2-Methylindole is an intermediate in the synthesis of indole derivative with potential antifungal activities.<br>References Rodriguez, S., et al.: Natural. Prod. Res., 22, 253 (2008); Zhang, B.G., et al.: Bioresource., 100, 5687 (2009);<br></p>

<p>Impurity Nimesulide EP Impurity E<br>Applications N-(Methylsulfonyl)-4-(desnitro) Nimesulide is an impurity of Nimesulide (N477500).<br>References Kulkarni, S., et al.: Curr. Sci., 83, 1442 (2002), Nguyen, D., et al.: J. Sep. Sci., 29, 1836 (2006), Zacharis, C., et al.: J. Pharm. Biomed. Anal., 49, 726 (2009),<br></p>

<p>Applications N-(p-Chlorobenzoyl)-p-anisidine is a COX-1 inhibitor analgesics that do not cause gastric damage.<br>References Kakuta, H., et al.: J. Med. Chem., 51, 2400 (2008);<br></p>

<p>Applications Ibuprofen Lysinate is used in the treatment of hemodynamically significant patent ductus arteriosus in neonates greater than 27 week gestational age.<br>References Pai, V.B., et. al.: Pharmacotherapy, 28, 1162 (2008)<br></p>

<p>Stability Hygroscopic<br>Applications 2’-[4-(2-Pyridylsulfamoyl)phenyl] Sulfasalazine Hydrochloride is an impurity of Sulfasalzine (S699084).<br></p>

<p>Applications A human metabolite of Ibuprofen.<br>References Bales, J., et al.: Clin. Chem., 31, 757 (1985), Maurer, H., et al.: J. Anal. Toxicol., 25, 237 (2001), Zwiener, C., et al.: Anal. Bioanal. Chem., 372, 569 ( 2002), de Bernardi, B., et al.: J. Clin. Oncol., 21, 1592 (2003),<br></p>

<p>Stability Light Sensitive<br>Applications 4,4'-Bis(4-aminobenzenesulfonyl)hydrazobenzene is a dimer impurity of Dapsone (D193250); an antibacterial used in the treatment of dermatitis herpetiformis.<br>References 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)<br></p>