
Benzimidazole and Imidazole Derivatives
Benzimidazole is a compound consisting of a benzene ring fused to an imidazole ring, a five-membered structure containing two nitrogen atoms. Benzimidazole derivatives, such as albendazole, are known for their antiparasitic and antifungal activity, used in the treatment of parasitic infections and certain parasitic diseases in animals and humans. Imidazole, on the other hand, is a five-membered structure with two nitrogen atoms found in various biologically active compounds. Imidazole derivatives, such as metronidazole, have antimicrobial and antiparasitic properties. These compounds are also used in the pharmaceutical industry for treating bacterial infections, parasitic diseases, and some fungal infections, as well as in organic chemistry as catalysts.
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Found 10376 products of "Benzimidazole and Imidazole Derivatives"
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Imidacloprid-3-hydroxy
CAS:Controlled Product<p>Stability Hygroscopic<br>Applications 2-Chloro-5-[[4,5-dihydro-2-(nitroamino)-1H-imidazol-1-yl]methyl]-3-pyridinol is an analog of Imidacloprid (I274990) which is an active ingredient in certain neuro-active insecticides.<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 Chauzat, M., et al.: Env. Entomol., 38, 514 (2009), Patial, A., et al.: Env. Ecol., 27, 320 (2009), Fernandez-Bayo, J., et al.: J. Agric., Food Chem., 57, 5435 (2009), Tomizawa, M., et al.: J. Med. Chem., 52, 3735 (2009), Chem. and Eng. News 90: 10 (2012)<br></p>Formula:C9H10ClN5O3Color and Shape:White To Light BeigeMolecular weight:271.66Oxcarbazepine
CAS:<p>Applications A metabolite of Eslicarbazepine acetate, (BIA 2-093), a novel central nervous system drug. A keto derivative of Carbamazepine. Used as an anticonvulsant. Neuroprotective & Neuroresearch Product.<br>References Dam., M., et al.: Epilepsy Res., 3, 70 (1989); Beydoun, A., et al.: Expert Opin. Pharmacother., 3, 59 (2001);<br></p>Formula:C15H12N2O2Color and Shape:Light YellowMolecular weight:252.27(S)-N-Methyl Pregabalin
CAS:Controlled Product<p>Stability Hygroscopic<br>Applications The major metabolite of Pregabalin.<br>References Taylor, C.P., at al.: Epilepsy Res., 14, 11 (1993), Field, M.J., et al.: Pain, 80, 391 (1999)<br></p>Formula:C9H19NO2Color and Shape:NeatMolecular weight:173.25(R)-(-)-3-(Carbamoylmethyl)-5-methylhexanoic acid
CAS:Controlled Product<p>Applications An impurity of the anti-convulsant (S)-Pregabalin (P704790).<br>References Lin, S. et al.: J. Liq. Chrom. Rel. Technol., 19, 2699 (1996); Sripathi, S. et al.: ARKIVOC, 10, 266 (2010);<br></p>Formula:C9H17NO3Color and Shape:White To Off-WhiteMolecular weight:187.24Lansoprazole Sulfone
CAS:<p>Impurity Lansoprazole USP Related Compound A<br>Applications A metabolite of Lansoprazole, as gastric pump inhibitor. Lansoprazole USP Related Compound A.<br>References De Morais, S., et al.: Mol. Pharmacol., 46, 594 (1994), Spencer, C., et al.: Drugs, 48, 404 (1994), Pearce, R., et al.: J. Pharmacol. Exp. Ther., 277, 805 (1996), Tassaneeyakul, W., et al.: Br. J. Clin. Pharmacol., 49, 139 (2000),<br></p>Formula:C16H14F3N3O3SColor and Shape:NeatMolecular weight:385.36Oxybutynin Chloride
CAS:Controlled Product<p>Applications An inhibitor of proliferation and supresses gene expression in bladder smooth muscle cells.<br>References Park, J.M., et al.: J. Urol., 162, 1110 (1999), Watson, M., et al.: Brit. J. Pharmacol., 127, 590 (1999)<br></p>Formula:C22H31NO3·ClHColor and Shape:White To Off-WhiteMolecular weight:393.953-Hydroxy Carbamazepine
CAS:<p>Applications A metabolite of Carbamazepine (C175840).<br>References Park, B., et al.: Biochem. Pharmacol., 36, 581 (1987), Yamazaki, H., et al.: Drug Metab. Dispos., 27, 1260 (1999), Dieckhaus, C., et al.: Chem. Res. Toxicol., 14, 958 (2001),<br></p>Formula:C15H12N2O2Color and Shape:NeatMolecular weight:252.27(R)-Rabeprazole Sodium Salt
CAS:Controlled Product<p>Applications A partially reversible gastric proton pump inhibitor.<br>References Moda, T., et al.: Lett. Drug Des. Discov., 4, 502 (2007), Belaz, K., et al.: J. Pharm. Biomed. Anal., 47, 81 (2008),<br></p>Formula:C18H20N3NaO3SColor and Shape:NeatMolecular weight:381.425-(S-Methyl) Albendazole
CAS:<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>Formula:C10H11N3O2SColor and Shape:NeatMolecular weight:237.28Tebuconazole-d9
CAS:Controlled Product<p>Applications Isotope labelled Tebuconazole (T013000), which is an ergosterol biosynthesis inhibitor present in most pesticide formulations (1,2). Various uptake is observed in plants (3). Drinking water Contaminant Candidate List 3 - CCL 3 as per United States Environmental Protection Agency (EPA). Environmental contaminants; 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. Grimalt S. et al.: Anal Bioanal Chem. 2015 Apr;407(11):3083-91 2. Gent, D. et al.: Plant Dis. 2003 May:87(5) p591-5973. Wang, C. et al.: Pest. Biochem. Physiol. 2007 Jan:87(1) p1-8<br></p>Formula:C16H13D9ClN3OColor and Shape:White To Light YellowMolecular weight:316.87Thiabendazole-d4 (Major)
CAS:Controlled ProductFormula:C10D4H3N3SColor and Shape:Off WhiteMolecular weight:205.27Tinidazole
CAS:Controlled Product<p>Applications Antiprotozoal (Trichomonas, Giardia); antiamebic; antibacterial.<br>References Miller, M.W., et al.: J. Med. Chem., 13, 849 (1970), Oderdea, G., et al.: Gut, 33, 1328 (1992),<br></p>Formula:C8H13N3O4SColor and Shape:Off-White To Light YellowMolecular weight:247.275-Benzoyl-1,3-dihydro-2H-benzimidazol-2-one
CAS:Controlled Product<p>Applications This compound contains a benzimidazolone moiety which has been seen to inhibit p38 MAP kinase , a crucial protein in the activation of biological factors related to psoriasis, rheumatoid arthritis and other inflammatory diseases.<br>References Hammach, A. et al.: Bioorg. Med. Chem. Lett., 16, 6316 (2006);<br></p>Formula:C14H10N2O2Color and Shape:NeatMolecular weight:238.24Omeprazole-d3 Sulfide
CAS:Controlled ProductFormula:C172H3H16N3O2SColor and Shape:NeatMolecular weight:332.44rel-(1R,3S,5S)-8-Methyl-8-azabicyclo[3,2,1]oct-6-en-yl-2-hydroxy-2,2-dithiophen-2-yl acetate
CAS:Controlled Product<p>Impurity Tiotropium EP impurity D<br>Applications (1R,3S,5S)-8-Methyl-8-azabicyclo[3,2,1]oct-6-en-yl-2-hydroxy-2,2-dithiophen-2-ylacetate is an impurity in the synthesis of Tiotropium Bromide (T444850), a muscarinic receptor antagonist. Bronchodilator.<br>References Haddad, E.-B., et al.: Mol. Pharmacol., 45, 899 (1994); Donohue, J. F., et al.: Chest, 122, 47 (2002); Profita, M., et al.: Allergy, 60, 1361 (2005); Dusser, D., et al.: Eur. Respir. J., 27, 547 (2006);<br></p>Formula:C18H19NO3S2Color and Shape:NeatMolecular weight:361.48Nocodazole
CAS:<p>M05733 - Nocodazole</p>Formula:C14H11N3O3SPurity:98%Color and Shape:Solid, Beige powderMolecular weight:301.32000732421875N-Methyl Omeprazole (Mixture of isomers with the methylated nitrogens of imidazole)
CAS:Controlled Product<p>Applications Omeprazole (O635000) impurity.<br>References Allenmark, S., et al.: Anal. Biochem., 136, 293 (1984), Besancon, M., et al.: J. Biol. Chem., 272, 22438 (1997),<br></p>Formula:C18H21N3O3SColor and Shape:Off White SolidMolecular weight:359.44Omeprazole Sulfide Hydrochloride
CAS:Controlled Product<p>Stability Hygroscopic<br>Applications Omeprazole Sulfide Hydrochloride is a metabolite of Omeprazole (O635000), which binds covalently to proton pump. It inhibits gastric secretion. Used as an anttiulcerative.<br>References Muller, P., et al.: Arzneimittel-Forsch., 33, 1685 (1983); Wallmark, B., et al.: Biochim. Biophys. Acta., 778, 549 (1984); Morii, M., et al.: J. Biol. chem., 268, 21553 (1993); Ritter, M., et al.: Br. J. Pharmacol., 124, 627 (1998)<br></p>Formula:C17H19N3O2S·HClColor and Shape:NeatMolecular weight:329.42 + 36.462-Nitroamino-2-imidazoline
CAS:Controlled Product<p>Applications 2-Nitroamino-2-imidazoline is a neonicotinoid substituents that forms water bridge at nicotinic acetylcholine receptor.<br>References Ohno, I., et al.: J. Agr. Food. Chem., 57, 2436 (2009); Nishiwaki, H., et al.: J. Pest. Sci., 29, 110 (2004);<br></p>Formula:C3H6N4O2Color and Shape:NeatMolecular weight:130.112,3,5-Trimethylpyridine N-Oxide
CAS:Controlled Product<p>Stability Hygroscopic<br>Applications Intermediate in the preparation of Omeprazole metabolites<br></p>Formula:C8H11NOColor and Shape:Off-White To Light BrownMolecular weight:137.182,4-Dichlorobenzyl Chloride
CAS:Controlled Product<p>Applications Reagent used in the addition of dichlorobenzene.<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 Marchand, P., et al.: Bioorg. Med. Chem., 17, 6715 (2009); Singh, J., et al.: J. Med. Chem., 53, 18 (2010);<br></p>Formula:C7H5Cl3Color and Shape:NeatMolecular weight:195.47Desnitro-imidacloprid Hydrochloride
CAS:Controlled ProductFormula:C9H11ClN4·ClHColor and Shape:Light Orange GreyMolecular weight:247.12Dihydro Donepezil(Mixture of Diastereomers)
CAS:Controlled Product<p>Impurity Donepezil Dihydro Impurity<br>Applications A potential metabolite of Donepezil.<br>References Dooley, M., et al.: Drugs Aging, 16, 199 (2000), Gotti, R., et al.: J. Pharm. Biomed. Anal., 24, 863 (2001), Gotti, R., et al.: Anal. Bioanal. Chem., 377, 875 (2003),<br></p>Formula:C24H31NO3Color and Shape:NeatMolecular weight:381.51Scopine Di(2-thienylglycolate)
CAS:<p>Impurity Tiotropium EP Impurity B<br>Applications Scopine Di(2-thienylglycolate) (Tiotropium EP Impurity B) is a precursor to Tiotropium Bromide.<br>References Buchwald, P., et al.: Pharmazie., 55, S210 (2000),<br></p>Formula:C18H19NO4S2Color and Shape:NeatMolecular weight:377.48Metconazole
CAS:<p>Applications Metconazole is a conazole based fungicide used for the control of black sigatoka disease on bananas. Metconazole acts primarily as an inhibitor of ergosterol biosynthesis which interferes with the synthesis of fungal cell membranes.<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 Cools, H.J., et al.: Pest. Manage. Sci., 68, 1034 (2012); Nam, M.H., et al.: Res. Plant. Disease., 17, 295 (2011);<br></p>Formula:C17H22ClN3OColor and Shape:White To Off-WhiteMolecular weight:319.83N-Nitroso Dextromethorphan
CAS:Controlled Product<p>Applications N-Nitroso Dextromethorphan is an impurity of Dextromethorphan (D299445). Dextromethorphan is an antitussive compound showing analgesic properties. Used in cough medication formulations.<br>References Church J. et al.: Can J Physiol Pharmacol., 67, 561 (1989); Carliss, R. et al.: Neurotoxicology., 28, 813 (2007);<br></p>Formula:C17H22N2O2Color and Shape:Light YellowMolecular weight:286.369N-Nitroso Imidapril
Controlled ProductFormula:C20H26N4O7Color and Shape:Off-WhiteMolecular weight:434.4435-(4-chlorophenyl)-1-(2-methoxyphenyl)-2,3-dihydro-1H-imidazole-2-thione
Molecular weight:316.79998779296875N-Desalkyl Itraconazole
CAS:Controlled Product<p>Applications N-Desalkyl Itraconazole is a derivative of itraconazole (I937500), an orally active antimycotic structurally related to Ketoconazole. Antifungal. It is a COVID19-related research product.<br>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),<br></p>Formula:C31H30Cl2N8O4Color and Shape:NeatMolecular weight:649.534-Ethyl-5-fluoropyrimidine
CAS:<p>Impurity Voriconazole EP Impurity C<br>Stability Volatile<br>Applications 4-Ethyl-5-fluoropyrimidine (Voriconazole EP Impurity C) is a Voriconazole (V760000) impurity.<br>References Miletic, T. et al.: Carb. polym., 98, 122 (2013); Rieke, R., et al.: Science, 246, 1260 (1989), Dickinson, R., et al.: Bioorg. Med. Chem. Lett., 6, 2031 (1996),<br></p>Formula:C6H7FN2Color and Shape:NeatMolecular weight:126.135-(4'-(BROMOMETHYL)-[1,1'-BIPHENYL]-2-YL)-2-TRITYL-2H-TETRAZOLE
CAS:Purity:95%Molecular weight:557.4949951171875α,α,2,6-Tetrachloro-toluene
CAS:Controlled Product<p>Impurity Isoconazole Impurity 9<br>Applications α,α,2,6-Tetrachloro-toluene (Isoconazole Impurity 9) is an impurity of Isoconazole (I798250), an antibacterial and antifungal agent used to treat vaginitis.<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 Asikoglu, M. et al.: J. Pharm. Pharmacol. 47, 717 (1995); Marrero-Ponce, Y. et al.: Bioorg. Med. Chem. 13, 2881 (2005)<br></p>Formula:C7H4Cl4Color and Shape:Light YellowMolecular weight:229.92Hydroxy Itraconazole-d5
CAS:Controlled ProductFormula:C35D5H33Cl2N8O5Color and Shape:Off-WhiteMolecular weight:726.66Albendazole Sulfoxide-d7
CAS:Controlled Product<p>Applications Albendazole Sulfoxide-d7 is the isotope labelled metabolite of Albendazole (A511620), an anthelmintic agent.<br>References Dominguez, L., et al.: Farmaco, 50, 697 (1995), De Laurentis, N., et al.: Pharm. Pharmacol Lett., 6, 2: 51 (1996)<br></p>Formula:C12H8D7N3O3SColor and Shape:NeatMolecular weight:288.37Temazepam Acetate
CAS:Controlled Product<p>Applications Temazepam Acetate is an impurity of temazepam (T017200), which is a pharmacologically active metabolite of Diazepam. It is used as a sedative and hypnotic drug.<br>References Sarteschi, P., et al.: Arzneim.-Forsch., 22, 93 (1972), Schwandt, H.J., et al.: Xenobiotica, 4, 733 (1974), Curry, S.H., et al.: Br. J. Pharmacol., 57, 427 (1976), Heel, R.C., et al.: Drugs, 21, 321 (1981),<br></p>Formula:C18H15ClN2O3Color and Shape:White To Off-WhiteMolecular weight:342.783-(2-Methylpropyl)pentanedioic Acid
CAS:<p>Applications An impurity of Pregabalin (P704800) with anticonvulsant properties.<br>References Yang, J. et al.: Gaox. Huax. Gong. Xueb., 23, 825 (2009); Zhang, G. et al.: Zhong. Yiyao Gong. Zaz., 38, 617 (2007);<br></p>Formula:C9H16O4Color and Shape:White To Light BrownMolecular weight:188.22Albendazole-2-amino-sulphone-D3 Hydrochloride
CAS:Controlled Product<p>Applications Albendazole-2-amino-sulphone-D3 Hydrochloride is a isotopically labeled compound form of Albendazole Sulfone (A511615). Albendazole Sulfone is a metabolite of Albendazole, an anthelmintic.<br>References Dominguez, L., et al.: Farmaco, 50, 697 (1995), De Laurentis, N., et al.: Pharm. Pharmacol. Lett., 6, 2: 51 (1996)<br></p>Formula:C10D3H10N3O2S·ClHColor and Shape:White To Off-WhiteMolecular weight:278.7744-Hydroxy Omeprazole Sulfone
CAS:Controlled Product<p>Applications The major degradation product of 4-Hydroxy Omeprazole (H948860).<br></p>Formula:C16H17N3O4SColor and Shape:White SolidMolecular weight:347.39Clidinium Bromide
CAS:Controlled Product<p>Applications An anticholinergic. Used as an antispasmodic.<br>References Zhang, L., et al.: Pharm. Res., 25, 1902 (2008), Sanderson, H., et al.: Toxicol Lett., 187, 84 (2009),<br></p>Formula:C22H26NO3·BrColor and Shape:White SolidMolecular weight:432.352,5-Dichloro Miconazole Nitrate
CAS:Controlled ProductFormula:C18H14Cl4N2O·HNO3Color and Shape:NeatMolecular weight:479.143-Bromo Zolpidem
Controlled ProductFormula:C19H20BrN3OColor and Shape:White To Off-WhiteMolecular weight:386.29O-Acetyl Scopolamine Hydrobromide
CAS:Controlled Product<p>Applications Scopolamine Hydrobromide (S200000) derivative. An acetylcholine antagonist. Used in treatment of motion sickness; antiemetic; antispasmodic; mydriatic; preanesthetic medicant.<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 Brand, J.J., et al.: Lancet, 2, 232 (1970), Bowles, J.B., et al.: Anaesthesia, 34, 476 (1979), Clissold, S.P., et al.: Drugs, 29, 189 (1985), Muhtadi, F.J., et al.: Anal. Profiles Drug Subs., 19, 477 (1990),<br></p>Formula:C19H24BrNO5Color and Shape:NeatMolecular weight:426.3Isavuconazole-d4
CAS:Controlled Product<p>Applications Labelled Isavuconazole (I777832). It is a new triazole currently undergoing phase III clinical trials. This compound has shown in vitro activity against a large number of clinical important yeasts and molds including Aspergillus spp., Fusarium spp., Scedosporium spp., Candida spp., the Zygomycetes and Cryptococcus spp.<br>References Ohwada, J., et al.: Bioorg. Med. Chem. Lett., 13, 191 (2003), Guinea, J., et al.: Antimicrob. Agents Chemother., 52, 1396 (2008)<br></p>Formula:C22H13D4F2N5OSColor and Shape:White To YellowMolecular weight:441.49(S)-Pregabalin Lactam
CAS:<p>Impurity Pregabalin EP impurity A<br>Applications (S)-Pregabalin Lactam is an impurity of (S)-Pregabalin (P704790) which is a GABA analogue used as an anticonvulsant.<br>References Taylor, C.P., at al.: Epilepsy Res., 14, 11 (1993); Field, M.J., et al.: Pain, 80, 391 (1999)<br></p>Formula:C8H15NOColor and Shape:WhiteMolecular weight:141.21Lansoprazole Sulfide N-Oxide
CAS:<p>Applications Used in the preparation of Lansoprazole and its metabolite and impurities.<br>References Reddy, G. et al.; Synthetic Commun. 38, 3477 (2008)<br></p>Formula:C16H14F3N3O2SColor and Shape:Off White SolidMolecular weight:369.36Ethyl Chloroacetate
CAS:Controlled ProductFormula:C4H7ClO2Color and Shape:ColourlessMolecular weight:122.55(S)-Pregabalin
CAS:Controlled Product<p>Applications S-Enantiomer of Pregabalin. A GABA analogue used as an anticonvulsant. Anxiolytic analgesic used to treat peripheral neuropathic pain and fibromyalgia.<br>References Taylor, C.P., at al.: Epilepsy Res., 14, 11 (1993); Field, M.J., et al.: Pain, 80, 391 (1999);<br></p>Formula:C8H17NO2Color and Shape:Off-WhiteMolecular weight:159.23Clotrimazole
CAS:<p>Applications Clotrimazole is an antifungal agent.<br>References Podust, L., et al.: J. Biol. Chem., 284, 25211 (2009), Hollender, J., et al.: Environ. Sci. Technol., 43, 7862 (2009), Marciniec, B., et al.: J. Pharm. Biomed. Anal., 50, 675 (2009), McGinnity, D., et al.: Drug Metab. Disposition, 37, 1259 (2009),<br></p>Formula:C22H17ClN2Color and Shape:NeatMolecular weight:344.84rel-(R,R)-Voriconazole
CAS:Controlled Product<p>Applications The (R,R)-enantiomer of Voriconazole. An antifungal (systemic). An ergosterol biosynthesis 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 Sanati, H., et al.: Antimicrob. Ag. Chemother., 41, 2492 (1997),<br></p>Formula:C16H14F3N5OColor and Shape:NeatMolecular weight:349.311'-Hydroxy Midazolam-β-D-glucuronide
CAS:Controlled Product<p>Applications The major metabolite of Midazolam (M343000(P)). Midazolam is an anesthetic; anticonvulsant; sedative; hypnotic. It is a positive allosteric modulator of the GABAA receptor.<br>References Dundee, J. W., et al.: Drugs, 28, 519 (1984), Lahat, E., et al.: Br. Med. J., 321, 83 (2000)<br></p>Formula:C24H21ClFN3O7Color and Shape:White To Off-WhiteMolecular weight:517.89Atropine
CAS:<p>Applications Atropine is an nerve agent that occurs naturally in plants of the nightshade family. Atropen is used as a pesticide poisoning and as a muscle relaxant when injected intravenously.<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 Kujak, R., et al.: J. Pharma. Biomed. Anal., 2015<br></p>Formula:C17H23NO3Color and Shape:WhiteMolecular weight:289.37PD 312236, PD 312237 Mixture
CAS:<p>Applications PD 312236 is a pyranoside lactose conjugate degradation product of pregabalin (P704800), a GABA analogue used as an anticonvulsant.<br>References Lovdahl, M.J., et al.: J. Pharma. Biomed. Anal., 28, 917 (2002);<br></p>Formula:C20H35NO11Color and Shape:NeatMolecular weight:465.49Piracetam-d8
CAS:Controlled Product<p>Applications Labelled Piracetam (P500800). Nootropic.<br>References Gobert, J., et al.: J. Pharm. Belg., 27, 281 (1972), Oosterveld, W.J., et al.: Arzneim.-Forsch., 30, 1947 (1980), Chouinard, G., et al.: Psychopharmacol. Bull., 17, 129 (1981),<br></p>Formula:C6D8H2N2O2Color and Shape:NeatMolecular weight:150.21[2-[5-(Aminomethyl)-2-methyl-1H-imidazol-1-yl]-5-chlorophenyl](2-fluorophenyl)-methanone Dihydrochloride
CAS:Controlled ProductFormula:C18H15ClFN3O• 2(HCl)Color and Shape:White To YellowMolecular weight:343.784,4',4''-Methylidynetrisbenzonitrile (Letrozole Impurity)
CAS:<p>Impurity Letrozole EP Impurity B<br>Applications 4,4',4''-Methylidynetrisbenzonitrile (Letrozole EP Impurity B) is a Letrozole isomeric impurity.<br></p>Formula:C22H13N3Color and Shape:Off-WhiteMolecular weight:319.36N-Ethyl-N-methyl-3-vinylphenyl Carbamate
CAS:Controlled Product<p>Impurity Rivastigmine USP Related Compound F<br>Stability Light Sensitive<br>Applications A related compound of Rivastigmine (R541000), a cholinesterase inhibitor. Rivastigmine USP Related Compound F.<br></p>Formula:C12H15NO2Color and Shape:White SolidMolecular weight:205.252,3-Dichlorobenzoyl Nitrile
CAS:Controlled Product<p>Applications 2,3-Dichlorobenzoyl Nitrile is an impurity of Lamotrigine (L173250), an anticonvulsant that is used in the treatment of bipolar and depression.<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 Rao, S.N., et al.: Int. J. Pharma. Pharmaceut. Sci., 4, 133 (2012); Qian, Y., et al.: J. Chem. Sci., 121, 463 (2009);<br></p>Formula:C8H3Cl2NOColor and Shape:NeatMolecular weight:200.02Triclabendazole Sulfone
CAS:Controlled Product<p>Applications Triclabendazole Sulfone is a metabolite of Triclabendazole (T774175), the only anthelmintic drug, which is active against immature, mature and adult stages of fluke.<br>References Whelan, M., et al.: J. Chromato., 1275, 41 (2013); Barrera, S., et al.; Antimicrob. Agent. Chemother., 56, 3535 (2012);<br></p>Formula:C14H9Cl3N2O3SColor and Shape:Off-WhiteMolecular weight:391.66(4-(3-Methoxypropoxy)-3-methylpyridin-2-yl)methanol Hydrochloride
CAS:Controlled ProductFormula:C11H17NO3·HClColor and Shape:NeatMolecular weight:211.26 + 36.46Rufinamide-d2
CAS:Controlled Product<p>Applications Labelled Rufinamide (R701552). Antiepileptic triazole derivative which decreases firing by neurons at sodium channels. Anticonvulsant.<br>References Cheung, W.K., et al.: Pharm. Res., 12, 1878 (1995), Cardot, J.-M., et al.: Biopharm. Drug Dispos., 19, 259 (1998), Palhagen, S., et al.: Epilepsy Res., 43, 115 (2001),<br></p>Formula:C10H6D2F2N4OColor and Shape:White To Light YellowMolecular weight:240.21Benznidazole
CAS:<p>Applications Benznidazole (BNZ) is traditionally used to treat Chagas disease caused by Trypanosoma cruzi. The drugs used for the treatment of this disease, Nifurtimox and Benznidazole, are toxic and present severe side effects.<br>References Abuin, G., et al.: Mol. Biochem. Parasitol ., 35, 229 (1989), Arora, P., et al.: J. Biol. Chem., 270, 6042 (1995), Campos, M., et al.: J. Immunol., 167, 416 (2001), Faundez, M., et al.: Antimicrob. Agents Chemother., 49, 126 (2005),<br></p>Formula:C12H12N4O3Color and Shape:NeatMolecular weight:260.25Efinaconazole
CAS:Controlled Product<p>Applications Efinaconazole is a topical antifungal for onychomycosis. (Synonyms: KP-103)<br>References Sugiura, K., et. al.: Antimicrob. Agents CH., 58, 3837 (2014);<br></p>Formula:C18H22F2N4OColor and Shape:NeatMolecular weight:348.391-Amino Hydantoin-13C3
CAS:<p>Applications 1-Amino Hydantoin Hydrochloride (A611090), a metabolite of Nitrofuran.Environmental contaminants<br>References Tribalat, L., et al.: Anal. Bioanal. Chem., 386, 2168 (2006), Chu, P., et al.: J. Agric. Food Chem., 55, 2129 (2007),<br></p>Formula:C3H5N3O2Color and Shape:White To Light YellowMolecular weight:118.07Omeprazole Sulfone
CAS:<p>Impurity USP Omeprazole Related Compound A<br>Applications A metabolite of Omeprazole.<br></p>Formula:C17H19N3O4SColor and Shape:White To Light BrownMolecular weight:361.42(1R)-(-)-10-Camphorsulfonic Acid
CAS:Controlled Product<p>Impurity Voriconazole EP Impurity E (1R)-Isomer<br>Stability Hygroscopic<br>Applications (1R)-(-)-10-Camphorsulfonic Acid (Voriconazole EP Impurity E (1R)-Isomer) is a chiral derivative of Camphor. Used in the preparation of a chiral recognition polymer that is used in the chiral separation of amino acids. A catalyst in direct animation of α-branched aldehydes (including important biological molecules such as α-Me phenylglycine) with near perfect enantioselectivity.<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 Guo, H. et al.: Polym. Preprints Am. Chem. Soc., 40, 506 (1999); Liu, C. et al.: Org. Lett., 13, 2638 (2011);<br></p>Formula:C10H16O4SColor and Shape:WhiteMolecular weight:232.30Dibenzazepine-10,11-dione
CAS:Controlled Product<p>Applications Dibenzazepine-10,11-dione is an impurity of Oxcarbazepine (O869250). Dibenzazepine-10,11-dione is used as a reagent in the preparation of bifunctional dipolar electroluminescent template for optoelectronic applications.<br>References Chen, C.-T. et al.: Chem. Comm., 31, 3980 (2005); Heckendorn, R. et al.: Helv, Chim. Acta, 70, 1955 (1987);<br></p>Formula:C14H9NO2Color and Shape:NeatMolecular weight:223.23Oxybutynin-d11 Chloride
CAS:Controlled Product<p>Applications An inhibitor of proliferation and supresses gene expression in bladder smooth muscle cells.<br>References Park, J.M., et al.: J. Urol., 162, 1110 (1999), Watson, M., et al.: Brit. J. Pharmacol., 127, 590 (1999)<br></p>Formula:C22D11H20NO3·ClHColor and Shape:NeatMolecular weight:405.024-Hydroxy Midazolam
CAS:Controlled Product<p>Applications A metabolite of Midazolam (M343000(P)), which is an anesthetic; anticonvulsant; sedative; hypnotic. Midazolam is also a positive allosteric modulator of the GABAA receptor.<br>References Ha, H., et al.: Ther. Drug Monit., 15, 338 (1993), Thummel, K., et al.: J. Pharmacol. Exp. Ther., 271, 557 (1994), Kim, R., et al.: Pharm. Res., 16, 408 (1999), Maurer, H., et al.: Anal. Bioanal. Chem., 381, 110 (2005), Smink, B., et al.: J. Anal. Toxicol., 30, 478 (2006), Dundee, J. W., et al.: Drugs, 28, 519 (1984), Lahat, E., et al.: Br. Med. J., 321, 83 (2000)<br></p>Formula:C18H13ClFN3OColor and Shape:Off-WhiteMolecular weight:341.77cis-[2-(2,4-Dichlorophenyl)-2-(1H-1,2,4-triazol-4-yl-methyl)-1,3-dioxolan-4-yl]methyl Methanesulfonate
CAS:<p>Impurity Itraconazole Impurity 16<br>Applications cis-[2-(2,4-Dichlorophenyl)-2-(1H-1,2,4-triazol-4-yl-methyl)-1,3-dioxolan-4-yl]methyl Methanesulfonate (Itraconazole Impurity 16) is an impurity in the synthesis of Itraconazole (I937500), an orally active antimycotic structurally related to Ketoconazole. Antifungal.<br>References Espinel-Ingroff, A., et al.: Antimicrob. Agents Chemother., 26, 5 (1984), Heykants, J., et al.: Mycoses, 32, Suppl 1, 67 (1989);<br></p>Formula:C14H15Cl2N3O5SColor and Shape:NeatMolecular weight:408.2575-Methoxy-2-(((4-methoxy-3,5-dimethylpyridin-2-yl)methyl)thio)-1H-benzo[d]imidazole
CAS:Purity:95.0%Color and Shape:SolidMolecular weight:329.42001342773443-(1H-IMIDAZOL-2-YL)PROPANOIC ACID HCL
CAS:Formula:C6H9ClN2O2Purity:97%Color and Shape:SolidMolecular weight:176.6N-Methyl Pantoprazole(Mixture of 1 and 3 isomers)
CAS:<p>Impurity Pantoprazole EP Impurity D;<br>Applications N-Methyl Pantoprazole (Pantoprazole EP Impurity D) is an impurity of Omeprazole and Pantoprazole. Mixture of 1 and 3 isomers (mixture of impurity D and F).<br>References McClean, S., et al.: Anal. Chim. Acta, 292, 81 (1994), Besancon, M., et al.: J. Biol. Chem., 272, 22438 (1997), Avgerinos, A., et al.: Eur. J. Drug Metab. Pharmacokinet., 23, 329 (1998), Wahbi, A., et al.: J. Pharm. Biomed. Anal., 30, 1133 (2002),<br></p>Formula:C17H17F2N3O4SColor and Shape:Light RedMolecular weight:397.40Hydroxy Itraconazole-d8
CAS:Controlled Product<p>Applications An isotopically Labelled metabolite of Itraconazole, an orally active antimycotic structurally related to Ketoconazole. It is a COVID19-related research product.<br>References Saag, M., et al.: Antimicrob. Agents Chemother., 32, 1 (1988), Haria, M., et al.: Drugs, 51, 585 (1996), Kousoulos, C., et al.: Anal. Bioanal. Chem., 384,199 (2006),<br></p>Formula:C35D8H30Cl2N8O5Color and Shape:NeatMolecular weight:729.685-O-Desmethyl Donepezil-d5
CAS:Controlled ProductFormula:C23H22D5NO3Color and Shape:White To Off-WhiteMolecular weight:370.5Ronidazole
CAS:<p>Applications Antimicrobial.<br>References Yamada, R., et al.: Biosci. Biotechnol. Biochem., 70, 54 (2006), Mohamed, R., et al.: J. Agric. Food Chem., 56, 3500 (2008), Leitsch, D., et al.: Mol. Microbiol., 72, 518 (2009),<br></p>Formula:C6H8N4O4Color and Shape:Light YellowMolecular weight:200.15Carbamezepine-D10
CAS:Controlled Product<p>Applications Carbamazepine-D10 is used to study occurrence of emerging trace organic chemicals in wastewater effluents in Saudi Arabia.<br>References Alidina, M., et al.: Sci. Total Environ., 478, 152 (2014);<br></p>Formula:C152H10H2N2OColor and Shape:NeatMolecular weight:246.335-Nitro-1H-imidazole-1-ethanol
CAS:Controlled Product<p>Applications 5-Nitro-1H-imidazole-1-ethanol (cas# 5006-68-8) is a compound useful in organic synthesis.<br></p>Formula:C5H7N3O3Color and Shape:NeatMolecular weight:157.13Miconazole Impurity B
CAS:Controlled Product<p>Applications Miconazole Impurity B, is the impurity of Miconazole (M342500), which is an imidazole antifungal agent, that is applied topically to the skin or to mucus membranes for the treatment of fungal infections.<br>References Godefroi, E.F., et al.: J. Med. Chem., 12, 784 (1969), Brugmans, et al.: Arch. Dermatol., 102, 428 (1970), Heel, R.C., et al.: Drugs, 19, 7 (1980),<br></p>Formula:C18H15Cl3N2OColor and Shape:NeatMolecular weight:381.684-Nitro-1H-imidazole-1-ethanol
CAS:Controlled Product<p>Applications 4-Nitro-1H-imidazole-1-ethanol<br></p>Formula:C5H7N3O3Color and Shape:WhiteMolecular weight:157.132-[[(3-Methyl-4-nitro-2-pyridinyl)methyl]sulfinyl]-1H-benzimidazole
CAS:Controlled Product<p>Applications 2-[[(3-Methyl-4-nitro-2-pyridinyl)methyl]sulfinyl]-1H-benzimidazole is a drug impurity of Lansoprazole, which is a proton pump inhibitor and used to treat stomach and intestinal ulcers.<br>References Figgitt, D., et al.: Drugs, 60, 925 (2000); Katsuki, H., et al.: Eur. J. Clin. Pharmacol., 57, 709 (2001); Barradell, L.B., et al.: Drugs, 44, 225 (1992); Kim, K., et al.: Clin. Pharmacol. Ther., 72, 90 (2002); Niioka, T., et al.: Ther. Drug Monit., 28, 321 (2006)<br></p>Formula:C14H12N4O3SColor and Shape:NeatMolecular weight:316.34Des [3-(1-Dimethylamino)ethyl] 3-Acetyl Rivastigmine
CAS:Controlled Product<p>Impurity Rivastigmine EP Impurity C; USP Related Compound D<br>Applications Des [3-(1-dimethylamino)ethyl] 3-acetyl Rivastigmine (Rivastigmine EP Impurity C) is a derivative of Rivastigmine (Tartrate: R541000), and acetylcholinesterase inhibitor that is commonly used to treat dementia associated with Parkinson’s disease and Alzheimer’s disease.<br>References Emre, M., et al.: New. Engl. J. Med., 351, 2509 (2004); Polinsky, R.: Clin. Ther., 20, 634 (1998); Wilkinson, D., et al.: Int. J. Clin. Pract., 56, 441 (2001)<br></p>Formula:C12H15NO3Color and Shape:Off-WhiteMolecular weight:221.253a,4,5,6-Tetrahydro Midazolam
CAS:Controlled Product<p>Applications 3a,4,5,6-Tetrahydro Midazolam is an impurity of Midazolam (M343000), a drug used for the treatment of acute seizures and is also known to exhibit activities as an anticonvulsant, sedative, and hypnotic.<br>References Dundee, J. W., et al.: Drugs, 28, 519 (1984); Lahat, E., et al.: Br. Med. J., 321, 83 (2000); Sati, B., et al.: Acta Pharm., 63, 385 (2013);<br></p>Formula:C18H17ClFN3Color and Shape:NeatMolecular weight:329.804-Methylpentanal (up to 75% hydrated form)
CAS:Controlled Product<p>Applications An intermediate used in the synthesis of Pregabalin (P704800) and related compounds.<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 Posadas, I., et al.: Br. J. Pharmacol., 142, 331 (2004),<br></p>Formula:C6H12OColor and Shape:Colourless LiquidMolecular weight:100.164-Hydroxy Omeprazole Sulfide
CAS:Controlled Product<p>Stability Light Sensitive<br>Applications An intermediate in the preparation of Omeprazole metabolites.<br>References Hoffmann, K., et al.: Drug Metab. Disposition, 14, 341 (1986), Andersson, T., et al.: Brit. J. Clin. Pharmacol., 36, 521 (1993),<br></p>Formula:C16H17N3O2SColor and Shape:NeatMolecular weight:315.39Tofenacin Hydrochloride Salt
CAS:Controlled Product<p>Applications A metabolite of Orphenadrine (O695300). An antidepressant prodrug. Ondansetron USP Related Compound C.<br>References Watkins, P., et al.: J. Biol. Chem., 261, 6264 (1986), McNeil, C., et al.: Biochem. Pharmacol., 51, 15 (1996), Hiessbock, R., et al.: J. Med. Chem., 42, 1921 (1999),<br></p>Formula:C17H21NO·ClHColor and Shape:NeatMolecular weight:291.821-(3-chloro-2-methylphenyl)-5-phenyl-2,3-dihydro-1H-imidazole-2-thione
CAS:Purity:98%Molecular weight:300.79998779296875Miconazole Impurity H
CAS:Controlled Product<p>Impurity Miconazole EP Impurity H<br>Applications Miconazole Impurity H (Miconazole EP Impurity H), is the impurity of Miconazole (M342500), which is an imidazole antifungal agent, that is applied topically to the skin or to mucus membranes for the treatment of fungal infections.<br>References Godefroi, E.F., et al.: J. Med. Chem., 12, 784 (1969), Brugmans, et al.: Arch. Dermatol., 102, 428 (1970), Heel, R.C., et al.: Drugs, 19, 7 (1980),<br></p>Formula:C18H16Cl2N2OColor and Shape:NeatMolecular weight:347.242-(((6-(Difluoromethoxy)-1H-benzo[d]imidazol-2-yl)sulfinyl)methyl)-3,4-dimethoxypyridine 1-oxide
CAS:Purity:95.00%Molecular weight:399.369995117187510,11-Dihydro-10-hydroxy Carbamazepine-D4 (Major)
CAS:Controlled ProductFormula:C152H4H10N2O2Color and Shape:BrownMolecular weight:258.312-Methyllamotrigine Methanesulfonate
CAS:<p>Applications 2-Methyl-Lamotrigine is an impurity of Lamotrigine (L173250), an anticonvulsant which inhibits glutamate release, possible through inhibition of sodium, potassium and calcium currents. Used in treatment of bipolar depression.<br>References Miller, A.A., et al.: Epilepsia, 27, 483 (1986), Grunze, et al.: Neuropsychobiology, 38, 131 (1998), Calabrese, J.R., et al.: J. Clin. Psychiatry, 60, 79 (1999),<br></p>Formula:C10H9Cl2N5·CH4O3SColor and Shape:Off White SolidMolecular weight:366.22Nimorazole
CAS:Controlled Product<p>Applications Nimorazole is an antimicrobial with activity against anaerobic bacteria and protozoa.<br>References Ratnaparkhi, M.P., et al.: Res. J. Pharma. BIol. Chem. Sci., 3, 303 (2012); Toustrup, K., et al.: Radiotherap. Oncol., 102, 122 (2012);<br></p>Formula:C9H14N4O3Color and Shape:NeatMolecular weight:226.232-Nitroaniline
CAS:Controlled Product<p>Impurity Albendazole Impurity 4<br>Applications 2-Nitroaniline, is the main precursor to phenylenediamines, which are converted to benzimidazoles, a family of heterocycles that are key components in pharmaceuticals. Albendazole Impurity 4<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 Booth, G.,et al.: Ull. Encyc. Indust. Chem. (2007);<br></p>Formula:C6H6N2O2Color and Shape:NeatMolecular weight:138.12

