
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 10351 products of "Benzimidazole and Imidazole Derivatives"
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N-Nitrosoiminodibenzyl
CAS:Controlled ProductFormula:C14H12N2OColor and Shape:NeatMolecular weight:224.26Isopropyl Itraconazole
CAS:Controlled ProductFormula:C34H36Cl2N8O4Color and Shape:NeatMolecular weight:691.61Hydroxy Varenicline N-Trifluoroacetic Acid Salt
CAS:Controlled Product<p>Applications Protected Varenicline metabolite.<br></p>Formula:C15H12F3N3O2Color and Shape:NeatMolecular weight:323.2710-Bromo-5H-dibenzo[b,f]azepine-5-carboxamide
CAS:Controlled Product<p>Impurity Carbamazepine EP Impurity G<br>Applications 10-Bromo-5H-dibenzo[b,f]azepine-5-carboxamide is a Carbamazepine (C175840(P)) impurity, which has been used in treatment of pain associated with trigeminal neuralgia. It is an anticonvulsant, neuroprotective & neuroresearch product.<br>References Cry, T., et. al.: J. Assoc. Official Anal. Chem., 70, 836 (1987); Stenger, E.G., et al.: Med. Exp., 11, 191 (1964); Pynnonen, S., et al.: Ther. Drug Monit., 1, 409 (1979); Sidebottom, A., et al.: J. Clin. Pharm. Ther., 20, 31 (1995)<br></p>Formula:C15H11BrN2OColor and Shape:NeatMolecular weight:315.16(S)-Rivastigmine
CAS:<p>Applications S-Rivastigmine is an isomer of Rivastigmine ( an acetylcholinesterase inhibitor used in the treatment of neurological disorders such as Alzheimer’s disease.<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 Howes, L et al.: Drug. Safe., 37, 391 (2014); Shahar, O. et al.: Nucl. Acids Res., 42, 5869 (2014);<br></p>Formula:C14H22N2O2Color and Shape:ColourlessMolecular weight:250.342-(2-Butyl)-4-{4-[4-(4-methyloxy-phenyl)-piperazin-1-yl]-phenyl}-2,4-dihydro-[1,2,4]-triazol-3-one
CAS:Controlled Product<p>Impurity Itraconazole EP Impurity A<br>Applications 2-(2-Butyl)-4-{4-[4-(4-methyloxy-phenyl)-piperazin-1-yl]-phenyl}-2,4-dihydro-[1,2,4]-triazol-3-one (Itraconazole EP Impurity A) is an intermediate of Itraconazole.<br></p>Formula:C23H29N5O2Color and Shape:BeigeMolecular weight:407.51rac-6-Chloro Voriconazole
CAS:Controlled Product<p>Applications An achiral intermediate of Voriconazole (V760000).<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 Ferretti, R., et al.: Chromatographia, 47, 649 (1998),<br></p>Formula:C16H13ClF3N5OColor and Shape:NeatMolecular weight:383.763-Isobutylglutaric Anhydride
CAS:Controlled ProductFormula:C9H14O3Color and Shape:NeatMolecular weight:170.20576-Chloro-2-methyl-4-(2-fluorophenyl)quinazoline
CAS:Controlled Product<p>Applications 6-Chloro-2-methyl-4-(2-fluorophenyl)quinazoline is a photochemical decomposition product of Midazolam (M343000), an anesthetic, anticonvulsant, sedative and hypotic agent.<br>References Anderson, R., et al.: J. Pharma. Biomed. Anal., 13, 667 (1995); Anderson, R., et al: Am. Clin. Lab., 16, 25 (1997);<br></p>Formula:C15H10ClFN2Color and Shape:NeatMolecular weight:272.704,4'-Dibromobenzophenone
CAS:Controlled Product<p>Applications 4,4'-Dibromobenzophenone is a reagent used in the synthesis of polyelectrolytes which serve as fluorescent visualizers for intracellular imaging with good biocompatibility.<br>References Hu, R., et al.: Chem. Asian J., 8, 2436-2445 (2013)<br></p>Formula:C13H8Br2OColor and Shape:Yellow Orange To BrownMolecular weight:340.01Trimebutine-d9 Maleate Salt
CAS:Controlled Product<p>Applications Trimebutine-d9 Maleate Salt, is the labeled analogue of Trimebutine Maleate Salt (T795605), acting as an opioid receptor agonist. Antispasmodic.<br>References Delvaux, M., et al.: J. Int. Med. Res., 25, 225 (1997), Lavit, M., et al.: Arzneim.-Forsch., 50, 640 (2000),<br></p>Formula:C22H20D9NO5·C4H4O4Color and Shape:NeatMolecular weight:512.62-Aminobenzimidazole
CAS:Controlled ProductFormula:C7H7N3Color and Shape:BeigeMolecular weight:133.155,6-Dimethoxyindane-1,3-dione
CAS:Controlled ProductFormula:C11H10O4Color and Shape:NeatMolecular weight:206.19N-Desethyl N-Methyl rac-Rivastigmine
CAS:<p>Impurity Rivastigmin USP Related Compound B<br>Applications N-Desethyl N-Methyl rac-Rivastigmine (Rivastigmin USP Related Compound B) is an impurity in the synthesis of Rivastigmine (R541000) a brain selective acetylcholinesterase inhibitor. Nootropic.<br>References Rosler, M., et al.: Brit. Med. J., 318, 633 (1999), Enz, A., et al.: Prog. Brain Res., 98, 431 (1993),<br></p>Formula:C13H20N2O2Color and Shape:Clear ColourlessMolecular weight:236.31N-[[4-(3-Methoxypropoxy)-3-methyl-2-pyridinyl]methyl] Rabeprazole Sulfide
CAS:Controlled Product<p>Applications Rabeprazole (R070500) N-aralkyl impurity.<br>References Fujisaki, H., et al.: Biochem. Pharmacol., 42, 321 (1991), Morri, M., et al.: J. Biol. Chem., 268, 21553 (1993), Pingili, R., et al.: Pharmazie, 60, 814 (2005),<br></p>Formula:C29H36N4O4SColor and Shape:NeatMolecular weight:536.69Lormetazepam
CAS:Controlled Product<p>Applications An analog of Lorazepam (L469850). Sedative, hypnotic.Controlled substance (depressant).<br>References Nudelman, A., et al.: J. Pharma. Sci., 63, 1886 (1974), Humpel, M., et al.: Eur. J. Drug Metab. Pharmacokinet., 4, 237 (1979), Girkin, R., et al.: Xenobiotica, 10, 401 (1980),<br></p>Formula:C16H12Cl2N2O2Color and Shape:Light Yellow To Light GreenMolecular weight:335.18(3-Methyl-4-(2,2,2-trifluoroethoxy)pyridin-2-yl)methyl Acetate
CAS:Controlled Product<p>Impurity Lansoprazole<br>Applications (3-Methyl-4-(2,2,2-trifluoroethoxy)pyridin-2-yl)methyl Acetate is an impurity of Lansoprazole (L175000). Lansoprazole is used as a gastric proton pump inhibitor and an antiulcerative. It May limit the severity of tuberculosis.<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); Chem. and Eng. News. p. 28 July 20 (2018)<br></p>Formula:C11H12F3NO3Color and Shape:NeatMolecular weight:263.213Scopolamine Sulfate
CAS:Controlled Product<p>Applications Scopolamine Sulfate is an impurity of Scopolamine (S200000), an acetylcholine antagonist used in the treatment of motion sickness and also used as antiemetic, antispasmodic, mydriatic, preanesthetic agents.<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 Trendelenburg P., et al.: Archiv fuer Exper. Pathol. Pharmacol., 73, 118 (1914);<br></p>Formula:C17H21NO7SColor and Shape:NeatMolecular weight:383.42N-trifluoroacetyl Varenicline
CAS:Controlled Product<p>Applications 7,8,9,10-Tetrahydro-8-(trifluoroacetyl)-6,10-methano-6H-pyrazino[2,3-h][3]benzazepine is used to prepare varenicline, which is a smoking cessation. It is a Varenicline protected impurity.<br>References Coe, J., et al.: J. Med. Chem., 48, 3474 (2005) ;<br></p>Formula:C15H12F3N3OColor and Shape:NeatMolecular weight:307.2705(S)-Aclidinium Bromide
CAS:Controlled Product<p>Applications (S)-Aclidinium Bromide is an isomer of Aclidinium Bromide (A190180) a novel long-acting antimuscarinic bronchodilator in phase II clinical trials for the treatment of chronic obstructive pulmonary disease (1,2).<br>References (1) Gupta, V. and Singh, D.: Expert Rev Respir Med. 6, 581 (2012)(2) De La Motte, S., et al.: Int. J. Clin. Pharmacol. Therap., 50,403 (2012)<br></p>Formula:C26H30BrNO4S2Color and Shape:Off-WhiteMolecular weight:564.551,2-Bismethylenecyclohexane (~75%)
CAS:Controlled ProductFormula:C8H12Purity:~75%Color and Shape:NeatMolecular weight:108.18(2R,3R)-3-(2,4-Difluorophenyl)-3-hydroxy-4-(1H-1,2,4-triazol-1-yl)butan-2-yl methanesulfonate
CAS:Controlled ProductFormula:C13H15F2N3O4SColor and Shape:NeatMolecular weight:347.34ent-Voriconazole
CAS:Controlled Product<p>Impurity Voriconazole EP Impurity D; Voriconazole USP Related Compound B<br>Applications ent-Voriconazole (Voriconazole USP Related Compound B; Voriconazole EP Impurity D) is the (2S,3R) enantiomer in Voriconazole (V760000) drug substance.<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 Gage, R., et al.: J. Pharm. Biomed. Anal., 17, 1449 (1998), Owens, P., et al.: Enantiomer, 4, 79 (1999), Pehourcq, F., et al.: Biomed. Chromatogr., 18, 719 (2004), Sellers, J., et al.: J. Pharm. Biomed. Anal., 41, 1088 (2006),<br></p>Formula:C16H14F3N5OColor and Shape:NeatMolecular weight:349.31Scopolamine β-D-Glucuronide
CAS:Controlled Product<p>Stability Hygroscopic<br>Applications A metabolite of Scopolamine.<br>References Shutt, L., et al.: Anaesthesia, 34, 476 (1979), Wada, S., et al.: Xenobiotica, 21, 1289 (1991), Chen, X., et al.: Acta Pharm. Sin., 33, 849(1998),<br></p>Formula:C23H29NO10Purity:>85%Color and Shape:NeatMolecular weight:479.48PD 224378
CAS:Controlled Product<p>Stability Very Hygroscopic<br>Applications PD 224378 is a 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:465.49(E)-Ethyl 2-cyano-5-methylhex-2-enoate
CAS:Controlled ProductFormula:C10H15NO2Color and Shape:NeatMolecular weight:335.42910-Acetyloxy Oxcarbazepine
CAS:Controlled Product<p>Applications An intermediate in the preparation of Carbamazepine metabolites.<br>References Heckendorn, R., et al.: Helv. Chimica Acta, 70, 1955 (1987),<br></p>Formula:C17H14N2O4Color and Shape:NeatMolecular weight:310.30Modafinil-d5 Sulfone
CAS:Controlled Product<p>Applications A labelled metabolite of Modafinil (M482500), a central nervous system vigilance promoting agent, which possesses neuroprotective properties.<br>References Wong, Y., et al.: J. Clin. Pharmacol., 39, 281 (1999), Robertson, P., et al.: Drug Metab. Dispos., 28, 664 (2000), Roth, T., et al.: Clin. Ther., 28, 689 (2006),<br></p>Formula:C152H5H10NO3SColor and Shape:NeatMolecular weight:294.384-Hydroxy Triazolam
CAS:Controlled Product<p>Stability Light Sensitive<br>Applications A metabolite of Triazolam (T767380).<br>References Gall, M., et al.: J. Med. Chem., 21, 1290 (1978), Jones, H., et al.: Drug Metab. Dispos., 32, 973 (2004), Hallifax, D., et al.: Drug Metab. Dispos., 33, 1852 (2005).<br></p>Formula:C17H12Cl2N4OColor and Shape:NeatMolecular weight:359.21Noratropine Hydrochloride
CAS:Controlled Product<p>Stability Hygroscopic<br>Applications A metabolite of Atropine (A794625). Two metabolites of Atropine (apoatropine and noratropine) were found in rat urine.<br>References Xu, A., et al.: J. Pharm. Biomed. Anal., 14, 33 (1995), Cherkaoui, S., et al.: J. Pharm. Biomed. Anal., 17, 1167 (1998),<br></p>Formula:C16H21NO3·HClColor and Shape:BrownMolecular weight:311.804-Acetoxy Midazolam
CAS:Controlled Product<p>Applications A metabolite of Midazolam (M343000).<br></p>Formula:C20H15ClFN3O2Color and Shape:NeatMolecular weight:383.801,3-Diethyl 2-(1-cyano-3-methylbutyl)propanedioate
CAS:Controlled ProductFormula:C13H21NO4Color and Shape:NeatMolecular weight:255.31Varenicline-d2,15N2 Dihydrochloride
CAS:Controlled Product<p>Applications Varenicline-d2,15N2 Dihydrochloride, is the labelled dihydrochloride salt of Varenicline (V098492), a nicotinic α4β2 acetylcholine receptor partial agonist. Aids in smoking cessation.<br>References Benowitz, N., et al.: Clin. Pharmacol. Ther., 44, 23 (1988), Cohen, C., et al.: J. Pharmacol. Exp. Ther., 306, 407 (2003), Tapper, A., et al.: Science, 306, 1029 (2004), Coe, J., et al.: J. Med. Chem., 48, 3474 (2005), Obach, R., et al.: Drug Metab. Disp., 34, 121 (2006),<br></p>Formula:C13H13D2Cl2N15N2Color and Shape:Light Beige SolidMolecular weight:288.18(alphaS)-N,N,α-Trimethyl-3-(4-nitrophenoxy)benzenemethanamine
CAS:Controlled Product<p>Applications (αS)-N,N,α-Trimethyl-3-(4-nitrophenoxy)benzenemethanamine is an impurity of Rivastigmine Tartrate (R541000). Rivastigmine Tartrate is a brain selective acetylcholinesterase inhibitor.<br>References Rosler, M., et al.: Brit. Med. J., 318, 633 (1999); Enz, A., et al.: Prog. Brain Res., 98, 431 (1993)<br></p>Formula:C16H18N2O3Color and Shape:OrangeMolecular weight:286.33Voriconazole-d3 N-Oxide (~90%)
CAS:Controlled ProductFormula:C16D3H11F3N5O2Purity:~90%Color and Shape:NeatMolecular weight:368.33Oxybutynin-d10 Hydrochloride
CAS:Controlled Product<p>Applications Oxybutynin-d10 Hydrochloride is a labeled analogue of Oxybutynin Chloride (O868525), 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:C22H22D10ClNO3Color and Shape:NeatMolecular weight:404.01Varenicline Carbamoyl β-D-Glucuronide
CAS:Controlled Product<p>Applications A metabolite of Varenicline.<br>References Toide, K., et al.: Biochem. Pharmacol., 67, 1269 (2004), Coe, J., et al.: J. Med. Chem., 48, 3474 (2005), Doll, R., et al.: Br. J. Cancer, 92, 426 (2005), Obach, R., et al.: Drug Metab. Dispos., 33, 262 (2005),<br></p>Formula:C20H21N3O8Color and Shape:NeatMolecular weight:431.41-Chloro-2-(dichlorophenylmethyl)benzene
CAS:Controlled Product<p>Applications 1-Chloro-2-(dichlorophenylmethyl)benzene is an intermediate used in the preparation of 2-chlorotrityl chloride resins. 1-Chloro-2-(dichlorophenylmethyl)benzene is an impurity of the antifungal agent Clotrimazole (C587400).<br>References Li, P. et al.: Guoch. Gong. Xue., 9, 558 (2009);<br></p>Formula:C13H9Cl3Color and Shape:Light YellowMolecular weight:271.571',4-Dihydroxy Midazolam
CAS:Controlled Product<p>Applications A metabolite of Midazolam (M343000).<br>References Soucek, P., et al.: Xenobiotica, 22, 83 (1992), Ghosal, A., et al.: Drug Metab. Dispos., 24, 940 (1996), Kobayashi, K., et al.: Biochem. Pharmacol., 63, 889 (2002),<br></p>Formula:C18H13ClFN3O2Color and Shape:NeatMolecular weight:357.772-Cyclopropylmethylamino-5-chlorobenzophenone
CAS:Controlled Product<p>Applications: 2-Cyclopropylmethylamino-5-chlorobenzophenone is a benzodiazepine derivative.<br>References Japp, M. et al.: J. Chrom., 439, 317 (1988); Guan, F. et al.: J. Anal Toxicol., 23, 54 (1999);<br></p>Formula:C17H16ClNOColor and Shape:NeatMolecular weight:285.773,4-Dihydro-1-phenylisoquinoline Hydrochloride
CAS:Controlled Product<p>Stability Light Sensitive<br>Applications 3,4-Dihydro-1-phenylisoquinoline has been shown to have anesthetic properties.<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 Moore, M.B., et. al.: J. Am. Chem. Soc., 76, 3656 (1954)<br></p>Formula:C15H13N·ClHColor and Shape:NeatMolecular weight:243.732,2'-Ethylenedianiline
CAS:Controlled Product<p>Applications 2,2'-Ethylenedianiline is used as a reagent to synthesize Oxcarbazepine (O869250), a broad-specturm, second-generation anticonvulsant drug that is used to treat partial and complex partial seizures in children and adults. 2,2'-Ethylenedianiline is also used as a reagent to prepare a series of triterpines (e.g. Lupeol [L474850]), compounds that have chemopreventative activity.<br>References Asmaa, M., et al.: Pac. J. Cancer Prevent., 15, 475 (2014); Kalis, M. & Huff, N.: Clin. Ther., 23, 680 (2001); Malke, S., et al.: Pharm. Sci., 69, 211 (2007); Schmidt, D. & Elger, C.: Epil. Beh., 5, 627 (2004)<br></p>Formula:C14H16N2Color and Shape:NeatMolecular weight:212.29Nitroguanidine (Wetted with water >20%)
CAS:Controlled Product<p>Applications Nitroguanidine is used in the prediction of heats of detonation of energetic compounds from their molecular structure. It is also used in the synthetic preparation of imidacloprid-d4 (I274992), which is a neonicotinoid.<br> E0<br>References Keshavarz, M.H., et al.: Propellant, Explosives, Pyrotechnics, 37, 93 (2012); 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:CH4N4O2Color and Shape:White To Off-WhiteMolecular weight:104.072-Deschlorothien-3-yl Tioconazole Hydrochloride
CAS:Controlled Product<p>Applications 2-Deschloro Tioconazole Hydrochloride is an analog of Tioconazole (T444680), an antifungal that is more active than Fluconazole (F421000) or Voriconazole (V760000) against Candida glabrata mutant strains. Antifungal (topical).<br>References Jevons, S., et al.: Antimicrob. Agents Chemother., 15, 597 (1979), Clayton, Y.M., et al.: Clin. Exp. Dermatol., 7, 543 (1982), Marriott, M.S., et al.: Dermatologica, 166, 1 (1983),<br></p>Formula:C16H14Cl2N2OS·ClHColor and Shape:NeatMolecular weight:389.732-(Ethylthio)ethanol
CAS:Controlled Product<p>Applications 2-(Ethylthio)ethanol is used to prepare aryldihydropyrimidinones as inhibitors of fatty acid transporter FATP4.<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 Blackburn, C., et al.: Bioorg. Med. Chem. Lett., 16, 3504 (2006)<br></p>Formula:C4H10OSColor and Shape:NeatMolecular weight:106.196-Ethyl-5-fluoropyrimidin-4(3H)-one
CAS:Controlled Product<p>Applications A pyrimidine derivative used in the preparation of bio-active compounds such as broad-spectrum triazole antifungal agents.<br>References Butters, M. et al.: Org. Proc. Res. Dev., 5, 28 (2001); Tong, L. et al.: Zhong. Yao., 8, 280 (2010);<br></p>Formula:C6H7FN2OColor and Shape:NeatMolecular weight:142.134'-Desmethoxy Omeprazole
CAS:Controlled Product<p>Applications 4'-Desmethoxy Omeprazole is one of two impurities in the synthesis of Esomeprazole, an anti-ulcerative drug for treatment of acid-related diseases.<br>References Liu, X., et al.: Lat. Am. J. Pharm., 34, 1265-1268 (2015);<br></p>Formula:C16H17N3O2SColor and Shape:NeatMolecular weight:315.392-Chloromethyl-4-methoxy-3-methylpyridine Hydrochloride
CAS:Controlled Product<p>Applications A pyridine derivative used in the preparation of anti-ulcerative agents and other pharmaceutical compounds.<br>References Kuehler, T.C. et al.: J. Med. Chem., 38, 4906 (1995);<br></p>Formula:C8H10ClNO·ClHColor and Shape:NeatMolecular weight:208.08
