
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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2-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:251.28Tofenacin 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:295.84cis-Hydroxy Solifenacin N-Oxide(Mixture of Diastereomers)
Controlled Product<p>Applications Solifenacin (S676700) metabolite.<br></p>Formula:C23H26N2O4Color and Shape:NeatMolecular weight:394.46Prazepam
CAS:Controlled Product<p>Applications Prazepam, is 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:C19H17ClN2OColor and Shape:Off-WhiteMolecular weight:324.804-Nitro-5-desnitro Tinidazole
CAS:Controlled Product<p>Impurity Tinidazole EP Impurity B<br>Applications 4-Nitro-5-desnitro Tinidazole (Tinidazole EP Impurity B) is an impurity in the synthesis of Tinidazole (T443900), 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:NeatMolecular weight:247.27rac-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:383.76Trimebutine EP Impurity E-Nitroso
Controlled ProductFormula:C21H26N2O6Color and Shape:NeatMolecular weight:402.4412-Chloroacetamide
CAS:Controlled Product<p>Applications A component of herbicidal mixtures of cellulose biosynthesis inhibitors with VLCFA inhibitors.<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 Aptula, A., et al.: Chem. Res. Toxicol., 19, 1097 (2006), Chan, K., et al.: J. Appl. Toxicol., 28, 608 (2008),<br></p>Formula:C2H4ClNOColor and Shape:WhiteMolecular weight:93.51Scopolamine 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:383.42(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:263.2132,4-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-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:307.2705N-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:236.312-Aminobenzimidazole
CAS:Controlled ProductFormula:C7H7N3Color and Shape:BeigeMolecular weight:133.152,2'-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:212.29(Chloromethyl)cyclohexane
CAS:Controlled Product<p>Applications (Chloromethyl)cyclohexane is a common chemical reagent used in the synthesis of imidazole inhibitors of cytokine release which suppresses the response to tumor necrosis factor.<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 Laufer, S. et al., J. Med. Chem., 45, 1695 (2002); Rabinowitz, M. et al.: J. Med. Chem., 44, 4252 (2001);<br></p>Formula:C7H13ClColor and Shape:NeatMolecular weight:132.6310,11-Dihydro Carbamazepine
CAS:Controlled ProductFormula:C15H14N2OColor and Shape:WhiteMolecular weight:238.28(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:157.21Triazolam-d3
CAS:Controlled Product<p>Applications Labelled Triazolam (T767380(M)). Triazolam in an hypnotic drug used in the short term treatment of insomnia.<br>References Lomen, P., et al.: J. Int. Med. Res., 4, 55 (1976), Allens, G.S., et al.: J. Int. Med. Res., 6, 343 (1978), Pakes, G.E., et al.: Drugs, 22, 81 (1981).<br></p>Formula:C17H9D3Cl2N4Color and Shape:NeatMolecular weight:346.232-Chlorobenzotrichloride
CAS:Controlled Product<p>Applications 2-Chlorobenzotrichloride is a chlorinated toluene with mutagenicity.<br>References Mineki, S. et al.: Mat. technol., 23, 413 (2005); Matsushita, H. et al.: Indust. Health., 17, 199 (1979);<br></p>Formula:C7H4Cl4Color and Shape:NeatMolecular weight:229.921-(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:269.26(E)-Ethyl 2-cyano-5-methylhex-2-enoate
CAS:Controlled ProductFormula:C10H15NO2Color and Shape:NeatMolecular weight:335.429(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:347.34Benzofuran-6-carboxylic Acid
CAS:Controlled Product<p>Applications Benzofuran-6-carboxylic Acid is a reagent in the development of potent LFA-1/ICAM antagonist SAR 118 as an opthalmic solution for treating dry eyes. Preparation of piperidinylpyrimidine derivatives as inhibitors of HIV-1 LTR activation.<br>References Zhong, M., et al.: ACS Med. Chem., 3, 203 (2012); Fujiwara, N., et al.: Bioorg. Med. Chem., 16, 9804 (2008)<br></p>Formula:C9H6O3Color and Shape:NeatMolecular weight:162.14Varenicline-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:288.18Lansoprazole 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:401.3610-Chloro Carbamazepine
CAS:<p>Applications 10-Chloro Carbamazepine is a derivative of Carbamazepine (C175840) which is used in treatment of pain associated with trigeminal neuralgia.<br>References 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:C15H11ClN2OColor and Shape:White PowderMolecular weight:270.711,3-Diethyl 2-(1-cyano-3-methylbutyl)propanedioate
CAS:Controlled ProductFormula:C13H21NO4Color and Shape:NeatMolecular weight:255.314-Acetoxy Midazolam
CAS:Controlled Product<p>Applications A metabolite of Midazolam (M343000).<br></p>Formula:C20H15ClFN3O2Color and Shape:NeatMolecular weight:383.80Voriconazole-d3 N-Oxide (~90%)
CAS:Controlled ProductFormula:C16D3H11F3N5O2Purity:~90%Color and Shape:NeatMolecular weight:368.331,2-Bismethylenecyclohexane (~75%)
CAS:Controlled ProductFormula:C8H12Purity:~75%Color and Shape:NeatMolecular weight:108.18(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:564.55Oxybutynin-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:404.012-(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:106.19Trimebutine-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:512.6ent-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:349.314-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:121.11Omeprazole Sodium Salt
CAS:Controlled Product<p>Stability Hygroscopic<br>Applications Omeprazole Sodium Salt is the salt analogue 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:C17H18N3O3S·Na·H2OColor and Shape:Off-WhiteMolecular weight:385.41Lurasidone Opened Imide (Mixture of Diastereomers)
CAS:Controlled Product<p>Applications Lurasidone Opened Imide is an impurity in the synthesis of Lurasidone (L474920) which is antipsychotic used for treatment of schizophrenia.<br>References Ishiyama, T., et al.: Eur. J. Pharmacol., 572, 160 (2007); Cole, P., et al.: Drugs of the Fut., 33, 316 (2008);<br></p>Formula:C28H38N4O3SColor and Shape:NeatMolecular weight:510.694,9-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:282.424,4'-(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:218.25Prazepam-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:329.83Isopropyl Itraconazole
CAS:Controlled ProductFormula:C34H36Cl2N8O4Color and Shape:NeatMolecular weight:691.61Metopimazine-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:451.64Itraconazole Desethylene-seco-piperazine Di-N-formyl Impurity
CAS:Controlled Product<p>Applications Itraconazole Desethylene-seco-piperazine Di-N-formyl Impurity is a by-product in the synthesis of Itraconazole Desethylene-seco-piperazine Mono-N-formyl Impurity (I937520), which is an 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:C35H36Cl2N8O6Color and Shape:NeatMolecular weight:735.626-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-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:359.21Tiotropium-d6 Bromide
CAS:Controlled ProductFormula:C19H16D6BrNO4S2Color and Shape:White To PurpleMolecular weight:478.45
