
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 10375 products of "Benzimidazole and Imidazole Derivatives"
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Metopimazine-d6
CAS:Controlled Product<p>Applications Labelled Metopimazine (MPZ) is used to prevent emesis during chemotherapies. Antiemetic.<br>References Catz, P., et al.: Int. J. Pharm., 58, 93 (1990), Sato, K., et al.: J. Pharm. Sci., 80, 104 (1991), Herrstedt, J., et al.: Cancer Chemother. Pharmacol., 33, 53 (1996), Sigsgaard, T., et al.: J. Clin. Onc., 19, 2091 (2001),<br></p>Formula:C22H21D6N3O3S2Color and Shape:NeatMolecular weight:451.64Tiotropium-d6 Bromide
CAS:Controlled ProductFormula:C19H16D6BrNO4S2Color and Shape:White To PurpleMolecular weight:478.45N-Desethyl N-Methyl Rivastigmine
CAS:Controlled Product<p>Impurity Rivastigmine EP Impurity B<br>Applications N-Desethyl N-Methyl Rivastigmine (Rivastigmine EP Impurity B) is an impurity 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:NeatMolecular weight:236.32Lansoprazole Sulfone N-Oxide
CAS:Controlled Product<p>Applications An impurity of Lansoprazole.<br>References Barradell, L., et al.: Drugs, 44, 225 (1992), Aydogmus, Z., et al.: Acta Pharm. Sci., 48, 45 (2006), El-Sherif, Z., et al.: Chem. Pharm. Bull., 54, 814 (2006),<br></p>Formula:C16H14F3N3O4SColor and Shape:WhiteMolecular weight:401.362-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:208.08Metronidazole β-D-Glucuronide
CAS:Controlled Product<p>Stability Hygroscopic<br>Applications A metabolite of Metronidazole.<br>References Kokwaro, G.O., et al.: Biochem. Pharmacol., 45, 1243 (1993), Sidelmann, U.G. , et al.: Xenobiotica, 26, 709 (1996),<br></p>Formula:C12H17N3O9Color and Shape:NeatMolecular weight:347.288-Demethyl Zolazepam
CAS:Controlled Product<p>Applications N-Demethylated metabolite of the anesthetic agent, Zolazepam (Z613500).<br>References Baukema, J. et al.: Res. Comm. Chem. Pathol. Pharmacol., 10, 227 (1975);<br></p>Formula:C14H13FN4OColor and Shape:NeatMolecular weight:272.28N-Nitrosoiminodibenzyl
CAS:Controlled ProductFormula:C14H12N2OColor and Shape:NeatMolecular weight:224.26Solifenacin EP Impurity A Nitroso Impurity
Controlled ProductFormula:C15H14N2OColor and Shape:NeatMolecular weight:238.29Lormetazepam
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(E)-Ethyl 2-cyano-5-methylhex-2-enoate
CAS:Controlled ProductFormula:C10H15NO2Color and Shape:NeatMolecular weight:335.429Scopolamine 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:479.48(3S)-3-(2-Methylpropyl)-pentanedioic Acid 1-Methyl Ester
CAS:Controlled Product<p>Impurity Pregabalin Impurity 17<br>Applications (3S)-3-(2-Methylpropyl)-pentanedioic Acid 1-Methyl Ester (Pregabalin Impurity 17) is an impurity of Pregabalin (P704800), 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:C10H18O4Color and Shape:NeatMolecular weight:202.25Propyl Itraconazole
CAS:Controlled ProductFormula:C34H36Cl2N8O4Color and Shape:NeatMolecular weight:691.61(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:564.5510-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:294.38Butyl Itraconazole
CAS:Controlled ProductFormula:C35H38Cl2N8O4Color and Shape:NeatMolecular weight:705.63Midazolam-d6 (1 mg/mL in Acetonitrile)
CAS:Controlled ProductFormula:C18D6H7ClFN3Color and Shape:Single SolutionMolecular weight:331.80(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:286.332-(Chloromethyl)-3,5-dimethylpyridine Hydrochloride
CAS:Controlled Product<p>Applications Intermediate in the preparation of Omeprazole metabolites<br></p>Formula:C8H10ClN·ClHColor and Shape:NeatMolecular weight:192.094-Methyl-2-[3-[(1-methylethyl)nitrosoamino]-1-phenylpropyl]phenol
CAS:Controlled ProductFormula:C19H24N2O2Color and Shape:NeatMolecular weight:312.41(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:347.34β-Ketoglutaric Acid
CAS:<p>Stability Unstable in Solution<br>Applications β-Ketoglutaric Acid is used in the synthesis of benzodiazepine derivatives. Also used in the synthesis of orally available hepatitis C virus polymerase inhibitors.<br>References Jung, D. et al.: Synth. Comm., 29, 1941 (1999); Li, H. et al.: J. Med. Chem., 52, 1255 (2009);<br></p>Formula:C5H6O5Color and Shape:Off White PowderMolecular weight:146.0981,2-Bismethylenecyclohexane (~75%)
CAS:Controlled ProductFormula:C8H12Purity:~75%Color and Shape:NeatMolecular weight:108.184-{[4-(4-Methyloxyphenyl)-piperazin-1-yl]-phenyl}-2,4-dihydro-[1,2,4]-triazol-3-one
CAS:Controlled Product<p>Applications 4-{[4-(4-Methyloxyphenyl)-piperazin-1-yl]-phenyl}-2,4-dihydro-[1,2,4]-triazol-3-one, is an intermediate for the synthesis of Itraconazole (I937500), an Antifungal.<br></p>Formula:C19H21N5O2Color and Shape:NeatMolecular weight:351.40(2Z)-2-[Cyano(2,3-dichlorophenyl)methylene]hydrazinecarboximidamide
CAS:Controlled ProductFormula:C9H7Cl2N5Color and Shape:NeatMolecular weight:256.092-(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 N-Demethyl Promethazine-d3 Hydrochloride
CAS:Controlled Product<p>Applications Labelled Promethazine (P757000) 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 Keipert, S., et al.: Pharmazie, 31, 296 (1976),<br></p>Formula:C16H16D3ClN2SColor and Shape:NeatMolecular weight:309.87Isometronidazole-D4
CAS:Controlled Product<p>Applications Isometronidazole-D4 is a labelled analogue of Isometronidazole (I821342). Isometronidazole is an impurity of Metronidazole (M338880), a chemotherapeutic agent that is used as a first line defense against Clostridium difficile (C.diff). Isometronidazole is also a hypoxic cell sensitizer in humans and mice.<br>References Hentschel, M. & Schmidt, W.: Die Pharm., 47, 221 (1992); Musher, D., et al.: Clin. Inf. Dis., 40, 1586 (2005); Rosenkranz, H. & Speck, W.: Biochem. Biophys. Res. Comm., 66, 520 (1975)<br></p>Formula:C6D4H5N3O3Color and Shape:NeatMolecular weight:175.182,4-Dicyano-3-(2-methylpropyl)-pentanediamide (Mixture of Diastereomers)
CAS:Controlled Product<p>Stability Hygrscopic<br>Applications 2,4-Dicyano-3-(2-methylpropyl)-pentanediamide is an impurity of Pregabalin (P704800), a GABA (A602920) analogue used as an anticonvulsant.<br>References Hoekstra, M.S., et al.: Org. Proc. Rec. Deve., 1, 26 (1997); Lowry, O., et al.: J. Biol. Chem., 193, 265 (1951); Gerlach, M., et al.: Brain Res., 741, 142 (1996); Taylor, C.P., at al.: Epilepsy Res., 14, 11 (1993), Field, M.J., et al.: Pain, 80, 391 (1999)<br></p>Formula:C11H16N4O2Color and Shape:NeatMolecular weight:236.27N-Acetylethanolamine
CAS:<p>Applications N-Acetylethanolamine can be used as an antistatic agent, foam boosting agent, hair conditioning humectant, skin conditioning surfactant and viscosity controlling agent in cosmetics industry. It is a non-tacky glycerine alternative for use in skin and hair care.<br>References Hough, L., et al.: J. Chem. Soc., 7923994-3997 (1957); Auzanneau, F-I, et al.: J. Chem. Soc., 10, 2831-2834 (1990);<br></p>Formula:C4H9NO2Purity:~90%Color and Shape:NeatMolecular weight:103.122-Amino-5-benzoyl-1-methylbenzimidazole
CAS:Controlled Product<p>Applications Mebendazole (M200500) thermal decomposition product. Mebendazole impurity.<br>References Himmelreich, M., et al.: Aus. J. Pharmaceut. Sci., 6, 123 (1977),<br></p>Formula:C15H13N3OColor and Shape:NeatMolecular weight:251.284-Desmethoxypropoxyl-4-chloro Rabeprazole Sulfide
CAS:Controlled Product<p>Applications A process impurity of Rabeprazole (R070500).<br>References Pingili, R.R., et al.: Pharmazie, 60, 814 (2005),<br></p>Formula:C14H12ClN3SColor and Shape:NeatMolecular weight:289.78Varenicline-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(R)-4,5-Dehydro Pregabalin
CAS:Controlled Product<p>Applications (R)-4,5-Dehydro Pregabalin is derived from rac 4,5-Dehydro Pregabalin (D230050), which is an impurity of the anti-convulsnat, Pregabalin.<br>References Dousa, M, et al.: J. Pharmac. Biomed. Anal., 53, 717 (2010);<br></p>Formula:C8H15NO2Color and Shape:NeatMolecular weight:157.214-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:359.21Trimebutine EP Impurity E-Nitroso
Controlled ProductFormula:C21H26N2O6Color and Shape:NeatMolecular weight:402.441α-Methyl-phenothiazine-10-ethanol
CAS:Controlled Product<p>Applications A promethazine (P757000) metabolite.<br>References Clement, B. A. & Beckett, A. H.; Xenobiotica 11, 609 (1981)<br></p>Formula:C15H15NOSColor and Shape:NeatMolecular weight:257.352-(Chloromethyl)-4-methoxy-3,5-dimethylpyridine Hydrochloride
CAS:Controlled Product<p>Impurity Omeprazole EP Impurity XI<br>Applications 2-(Chloromethyl)-4-methoxy-3,5-dimethylpyridine Hydrochloride (Omeprazole EP Impurity XI) is an intermediate in the production of the antiulcer agent Omeprazole.<br>References Roma, G., et al.: J. Med. Chem., 50, 2886 (2007), Hoffmann, S., et al.: Toxicol. Lett., 180, 9 (2008),<br></p>Formula:C9H12ClNO·ClHColor and Shape:WhiteMolecular weight:222.114-Chloro-6-ethyl-5-fluoropyrimidine
CAS:Controlled Product<p>Applications A pyrimidine derivative used as a building block 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:C6H6ClFN2Color and Shape:NeatMolecular weight:160.58rac-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:383.76Prazepam-d5
CAS:Controlled Product<p>Applications Prazepam-d5, is the labeled analogue of Prazepam (P702250), a benzodiazepine derivative drug having anxiolytic, anticonvulsant, sedative and skeletal muscle relaxant properties.<br>References Shader R. I., et al.: Ciba. Found. Symp., (74), 141 (1979); Jacqmin, P., et al.: Neuropsychobiology, 19 (4), 186 (1988);<br></p>Formula:C192H5H12ClN2OColor and Shape:NeatMolecular weight:329.83Metopimazine
CAS:<p>Applications Metopimazine (MPZ) is used to prevent emesis during chemotherapies. Antiemetic.<br>References Catz, P., et al.: Int. J. Pharm., 58, 93 (1990), Sato, K., et al.: J. Pharm. Sci., 80, 104 (1991), Herrstedt, J., et al.: Cancer Chemother. Pharmacol., 33, 53 (1996), Sigsgaard, T., et al.: J. Clin. Onc., 19, 2091 (2001),<br></p>Formula:C22H27N3O3S2Color and Shape:Off White SolidMolecular weight:445.60Temazepam
CAS:Controlled Product<p>Applications Temazepam 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:C16H13ClN2O2Color and Shape:Light YellowMolecular weight:300.741-(1H-Benzo[d]imidazol-2-yl)-3-methyl-4-oxo-1,4-dihydropyridine-2-carboxylic acid (>75%)
CAS:<p>Impurity Rabeprazole EP Impurity C<br>Applications 1-(1H-Benzo[d]imidazol-2-yl)-3-methyl-4-oxo-1,4-dihydropyridine-2-carboxylic acid (>75%) (Rabeprazole EP Impurity C) is a Rabeprazole (R070500) impurity. A degradation product formed in stressed tablets of Rabeprazole sodium.<br>References Kommanaboyina, B., et al.: Drug Dev. Ind. Pharm., 25, 857 (1999), Carswel, C., et al.: Drugs, 61, 2327 (2001), Garcia, C., et al.: J. Pharm. Biomed. Anal., 46, 88 (2008),<br></p>Formula:C14H11N3O3Purity:>75%Color and Shape:NeatMolecular weight:269.261,3-Diethyl 2-(1-cyano-3-methylbutyl)propanedioate
CAS:Controlled ProductFormula:C13H21NO4Color and Shape:NeatMolecular weight:255.31
