
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 10354 products of "Benzimidazole and Imidazole Derivatives"
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(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:157.212-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:285.77(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:564.552,5-Dichlorobenzoyl Cyanide
CAS:Controlled Product<p>Applications 2,5-Dichlorobenzoyl Cyanide is a reagent applied for research purposes<br>References Veerareddy, A., et al.: J. Heterocyclic Chem., 51, 1311 (2014)<br></p>Formula:C8H3Cl2NOColor and Shape:NeatMolecular weight:200.022(2Z)-2-[Cyano(2,3-dichlorophenyl)methylene]hydrazinecarboximidamide
CAS:Controlled ProductFormula:C9H7Cl2N5Color and Shape:NeatMolecular weight:256.09Isometronidazole-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:175.184,4'-(1-Methylene) bis-Benzonitrile
CAS:Controlled Product<p>Applications 4,4'-(1-METHYLENE) BIS-BENZONITRILE (cas# 10466-37-2) is a useful research chemical.<br></p>Formula:C15H10N2Color and Shape:White To Off-WhiteMolecular weight:218.25Itraconazole Desethylene-seco-piperazine Mono-N-formyl Impurity
CAS:Controlled Product<p>Applications Itraconazole Desethylene-seco-piperazine Mono-N-formyl Impurity of Itraconazole (I937500). Itraconazole is 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:C34H36Cl2N8O5Color and Shape:NeatMolecular weight:707.61N-Ethylcarbamic Acid 3-[(1S)-1-(Dimethylamino)ethyl]phenyl Ester
CAS:Controlled ProductFormula:C13H20N2O2Color and Shape:NeatMolecular weight:236.312,4-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:236.27(2-Chlorophenyl)diphenylmethane
CAS:Controlled Product<p>Applications (2-Chlorophenyl)diphenylmethane is a triarylmethane with antiproliferative activity. (2-Chlorophenyl)diphenylmethane is an impurity of the antifungal agent Clotrimazole (C587400).<br>References Al-Qawasmeh, R.A. et al.: Bioorg. Med. Chem. Lett., 14, 347 (2004);<br></p>Formula:C19H15ClColor and Shape:NeatMolecular weight:278.784,9-Diisobutyl-1,6-diazecane-2,7-dione
CAS:Controlled Product<p>Applications 4,9-Diisobutyl-1,6-diazecane-2,7-dione is in impurity of rac-Pregabalin (P704800) 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:C16H30N2O2Color and Shape:NeatMolecular weight:282.42Prazepam-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:329.83(3S)-1-[2-(3-Ethenyl-4-hydroxyphenyl)ethyl]-α,α-diphenyl-3-pyrrolidineacetamide
CAS:Controlled ProductFormula:C28H30N2O2Color and Shape:NeatMolecular weight:426.552,5-Dichlorothiophen-3-yl Tioconazole Hydrochloride
CAS:Controlled ProductFormula:C16H12Cl4N2OS·ClHColor and Shape:NeatMolecular weight:458.62N-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:236.311-(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:269.26Metopimazine-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:451.64N-Nitroso Aryl Lurasidone
CAS:Controlled ProductFormula:C11H12N4OSColor and Shape:NeatMolecular weight:248.31Lormetazepam
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:335.18Scopolamine 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:479.484-{[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:351.40Noratropine 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:311.80Metronidazole 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:347.284-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:160.58N-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:103.124-Fluorobenzonitrile
CAS:Controlled Product<p>Applications 4-Fluorobenzonitrile is used in the synthesis of flurenones, pharmaceutical prerequisites, as well as opiod receptor antagonists.<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 Wan, J. et al.: Org. Lett., 15, 2742 (2013); Kormos, C. et al.: J. Med. Chem., 56, 4551 (2013);<br></p>Formula:C7H4FNColor and Shape:NeatMolecular weight:121.11Varenicline-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:288.18N-Methyl Omeprazole-d3 (Mixture of isomers with the methylated nitrogens of imidazole)
CAS:Controlled Product<p>Applications Labelled 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:C18H18D3N3O3SColor and Shape:NeatMolecular weight:362.462-(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:222.112-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:251.28N-Nitroso Albendazole (mixtures of regional isomers)
Controlled ProductFormula:C13H16N4O3SColor and Shape:NeatMolecular weight:616.712Lansoprazole 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:401.363-Hydroxy-1-methyl-1-Azoniabicyclo[2.2.2]octane Bromide
CAS:Controlled Product<p>Applications 3-Hydroxy-1-methyl-1-Azoniabicyclo[2.2.2]octane is an impurity in the synthesis of Clidinium Bromide (C576250), 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:C8H16BrNOColor and Shape:NeatMolecular weight:222.121,2-Bismethylenecyclohexane (~75%)
CAS:Controlled ProductFormula:C8H12Purity:~75%Color and Shape:NeatMolecular weight:108.18(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:250.34Solifenacin EP Impurity A Nitroso Impurity
Controlled ProductFormula:C15H14N2OColor and Shape:NeatMolecular weight:238.29Hydroxy Varenicline N-Trifluoroacetic Acid Salt
CAS:Controlled Product<p>Applications Protected Varenicline metabolite.<br></p>Formula:C15H12F3N3O2Color and Shape:NeatMolecular weight:323.274-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:359.21(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:263.2133,4-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:243.73cis-Hydroxy Solifenacin N-Oxide(Mixture of Diastereomers)
Controlled Product<p>Applications Solifenacin (S676700) metabolite.<br></p>Formula:C23H26N2O4Color and Shape:NeatMolecular weight:394.461',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:357.77Tofenacin Hydrochloride Salt-d4
CAS:Controlled Product<p>Applications A labelled metabolite of Orphenadrine (O695300). An antidepressant prodrug.<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:C17H18D4ClNOColor and Shape:NeatMolecular weight:295.84N-Nitrosoiminodibenzyl
CAS:Controlled ProductFormula:C14H12N2OColor and Shape:NeatMolecular weight:224.269-Acridinecarboxylic acid
CAS:Controlled Product<p>Applications 9-Acridinecarboxylic acid is used in the synthesis of short DNA-binding peptides.<br></p>Formula:C14H9NO2Color and Shape:YellowMolecular weight:223.235,6-Dimethoxyindane-1,3-dione
CAS:Controlled ProductFormula:C11H10O4Color and Shape:NeatMolecular weight:206.19

