
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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11-Keto Oxcarbazepine
CAS:Controlled Product<p>Stability Unstable in Solution<br>Applications A keto impurity of the anticonvulsant Oxcarbazepine (O869250).<br></p>Formula:C15H10N2O3Color and Shape:NeatMolecular weight:266.251-(1-Phenyl-ethyl)-1H-benzoimidazole-2-carbaldehyde
CAS:Purity:95.0%Color and Shape:SolidMolecular weight:250.30099487304688Oxcarbazepine-D4 (Major)
CAS:Controlled Product<p>Applications A labelled metabolite of Eslicarbazepine acetate, (BIA 2-093), a novel central nervous system drug. A keto derivative of Carbamazepine. Used as an anticonvulsant.Only available as a mixture of deuterated material:d-1: 1%d-2: 9%d-3: 35%d-4: 55%<br>References Dam., M., et al.: Epilepsy Res., 3, 70 (1989), Beydoun, A., et al.: Expert Opin. Pharmacother., 3, 59 (2001),<br></p>Formula:C152H4H8N2O2Color and Shape:Light Orange Colour PowderMolecular weight:256.294'-Ethoxyacetophenone
CAS:<p>Applications 4'-Ethoxyacetophenone, is an acetophenone derivative that can be used as an antibacterial agent. It is a reagent for plymerization. It can also be used as a flavoring agent in fabricating cigarettes with flavored filter tips.<br>References Sivakumar, P., et al.: Chem. Bio. Drug Design, 72, 303 (2008); Mathis, D. E., Beitraege zur Tabakforschung Int., 12, 1 (1983);<br></p>Formula:C10H12O2Color and Shape:White To Off-WhiteMolecular weight:164.2010-Acetoxy-5H-dibenz[b,f]azepine-5-carboxamide
CAS:Controlled Product<p>Applications 10-Acetoxy-5H-dibenz[b,f]azepine-5-carboxamide is an intermediate in the synthesis of Oxacarbazepine (O869250) related compounds.<br></p>Formula:C17H14N2O3Color and Shape:NeatMolecular weight:294.30O-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:426.32-Methyl-5-nitroimidazole
CAS:<p>Impurity Tinidazole EP Impurity A/ Metronidazole EP Impurity A<br>Applications 2-Methyl-5-nitroimidazole (Tinidazole EP Impurity A) is a Floconazole impurity.<br>References Sanderson, H., et al.: Toxicol. Lett., 187, 84 (2009), Kumar, L., et al.: Eur. J. Med. Chem., 45, 817 (2010),<br></p>Formula:C4H5N3O2Color and Shape:Light YellowMolecular weight:127.10Tert-Butyl 6-(benzyloxy)-4-fluoro-1H-indazole-1-carboxylate
CAS:Purity:95.0%Molecular weight:342.3699951171875Methyl 5-((4-bromo-2-fluorophenyl)amino)-4-fluoro-1-methyl-1H-benzo[d]imidazole-6-carboxylate
Purity:95%Molecular weight:396.19198608398443-(2-(6-(tert-Butyl)-1H-benzo[d]imidazol-2-yl)ethyl)cyclobutanone hydrochloride
CAS:Purity:97.0%Molecular weight:306.8299865722656Imidacloprid-d4
CAS:Controlled Product<p>Applications Imidacloprid-d4 is labelled Imidacloprid (I274990) which is a neonicotinoid, the 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:C92H4H6ClN5O2Color and Shape:WhiteMolecular weight:259.69Oxazepam-d5
CAS:Controlled Product<p>Applications Labelled Oxazepam. Anxiolytic; muscle relaxant (skeletal); anticonvulsant; ligand for the GABAA receptor benzodiazepinemodulatory site.Controlled substance (depressant).<br>References Goldenthal, E.I., et al.: Toxicol. Appl. Pharmacol., 18, 185 (1971), Sisenwine, et al.: Arzneim. Forsch., 22, 682 (1972), Shearer, C.M., et al.: Anal. Profiles Drug Subs., 3, 441 (1974), Greenblatt, D.J., et al.: Clin. Pharmacokinet., 6, 89 (1981),<br></p>Formula:C152H5H6ClN2O2Color and Shape:Off-WhiteMolecular weight:291.742-(benzylthio)-1H-benzimidazole
CAS:Purity:95.0%Color and Shape:Solid, White powderMolecular weight:240.32000732421875Tinidazole
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:247.27TRAM-34
CAS:Controlled Product<p>Applications TRAM-34 blocks intermediate conductance calcium-activated potassium channel IKCa1 with a Kd of 20nM and exhibits exquisite selectivity for the channel. Clotrimazole impurity.<br>References Wulff, H., et al.: J. of Biological Chemistry, 276, 34, 32040 (2001)<br></p>Formula:C22H17ClN2Color and Shape:NeatMolecular weight:344.84Thiabendazole-d4 (Major)
CAS:Controlled ProductFormula:C10D4H3N3SColor and Shape:Off WhiteMolecular weight:205.274,4'-Dicyanobenzophenone
CAS:<p>Applications Letrozole intermediate.<br>References Gomez, R., et al.: J. Mat. Chem., 17, 4274 (2007),<br></p>Formula:C15H8N2OColor and Shape:Light BrownMolecular weight:232.24N-(2-Hydroxyethyl)-5-methyl-1,2,4-oxadiazole-3-carboxamide
CAS:<p>Applications N-(2-Hydroxyethyl)-5-methyl-1,2,4-oxadiazole-3-carboxamide is a photolysis product of Metronidazole (M338880), an antibiotic.<br>References Moore, Douglas E., et al.: Radiation Phy. and Chem., 36(4), 547-50 (1990)<br></p>Formula:C6H9N3O3Color and Shape:NeatMolecular weight:171.1545-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:238.24Mebendazole-d8
CAS:Controlled Product<p>Applications Labelled Mebendazole (M200500). Anthelmintic (Nematodes).<br>References Al-Badr, A.A., et al.: Anal. Profiles Drug Subs., 16, 291 (1987)<br></p>Formula:C162H3H10N3O3Color and Shape:NeatMolecular weight:298.312-Mercapto-4,5,6,7-d4-benzimidazole
CAS:Controlled ProductFormula:C72H4H2N2SColor and Shape:NeatMolecular weight:154.23Triclabendazole
CAS:Controlled Product<p>Applications An anthelmintic (fasciola).<br>References Wolff, K., et al.: Vet. Parasitol., 13, 145 (1983)<br></p>Formula:C14H9Cl3N2OSColor and Shape:NeatMolecular weight:359.66Methyl 2-(1H-imidazol-1-yl)acetate
CAS:Formula:C6H8N2O2Purity:95.0%Color and Shape:SolidMolecular weight:140.142(1R,3S,5S)-3-(2-Hydroxy-2,2-di(thiophen-2-yl)acetoxy)-8,8-dimethyl-8-azabicyclo[3.2.1]oct-6-en-8-ium Bromide
CAS:Controlled Product<p>Impurity Tiotropium bromide EP impurity C<br>Applications (1R,3S,5S)-3-(2-Hydroxy-2,2-di(thiophen-2-yl)acetoxy)-8,8-dimethyl-8-azabicyclo[3.2.1]oct-6-en-8-ium Bromide 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:C19H22NO3S2·BrColor and Shape:NeatMolecular weight:456.421-(2-Trifluoromethylphenyl)imidazole
CAS:Formula:C10H7F3N2Purity:98.0%Color and Shape:SolidMolecular weight:212.175Tebuconazole-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:316.873-(4,5-Diphenyl-1,3-oxazol-2-yl)propanoic acid
CAS:Purity:97.0%Color and Shape:SolidMolecular weight:293.3219909667969Triazolam N-Oxide
CAS:Controlled Product<p>Applications Triazolam N-Oxide is a derivative of Triazolam (T767380), a sedative.<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:C17H12Cl2N4OColor and Shape:NeatMolecular weight:359.212-Aminomethyl-7-chloro-2,3-dihydro-5-(2-fluorophenyl)-1H-1,4-benzodiazepine
CAS:Controlled Product<p>Applications An Intermediate for the synthesis of Midazolam.<br>References Walser, A., J. Org. Chem., 43, 936 (1978).<br></p>Formula:C16H15ClFN3Color and Shape:NeatMolecular weight:303.76Lansoprazole-d4
CAS:Controlled ProductFormula:C162H4H10F3N3O2SColor and Shape:NeatMolecular weight:373.39Iminostilbene
CAS:Controlled Product<p>Impurity Carbamazepine EP Impurity D<br>Applications A metabolite of Carbamazepine (CBZ) (C175840).<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 Lertratanangkoon, K., et al.: Drug Metab. Dispos., 10, 1 (1982), Deleu, D., et al.: Eur. J. Clin. Pharmacol., 57, 243 (2001),<br></p>Formula:C14H11NColor and Shape:Yellow To Dark OrangeMolecular weight:193.245-(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:237.28Ravuconazole-d4
CAS:Controlled Product<p>Applications Ergosterol biosynthesis inhibitor. Antifungal.<br>References Fung-Tomc., J.C., et al.: Antimicrob. Agents Chemother., 42, 313 (1988), Tsuruoka, A., et al.: Chem. Pharm. Bull., 46, 623 (1998), Gupta, A.K., et al.: J. Eur. Acad. Dermatol. Venereol., 19, 437 (2005),<br></p>Formula:C22H13D4F2N5OSColor and Shape:NeatMolecular weight:441.49(R)-Modafinil Carboxylate Methyl Ester
CAS:Controlled ProductFormula:C16H16O3SColor and Shape:NeatMolecular weight:288.363-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:252.273-(1H-Imidazol-4-yl)acrylic acid
CAS:Purity:95.0%Color and Shape:SolidMolecular weight:138.12600708007812Parbendazole
CAS:Controlled Product<p>Applications Parbendazole is a benzimidazole carbamate and a potent inhibitor of microtubule assembly and functions.<br>References Lahon, L.C.. et al.: Ind. J. Pharmacol., 26, 235 (1994); Havercroft, J.C., et al.: J. Cell. Sci., 49, 195 (1981);<br></p>Formula:C13H17N3O2Color and Shape:NeatMolecular weight:247.29Oxybutynin 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:393.95{[4-(1H-benzimidazol-2-yl)cyclohexyl]methyl}amine dihydrochloride
CAS:Purity:95.0%Molecular weight:302.2399902343753-(2,3-Dichlorobenzamido) Lamotrigine
CAS:<p>Impurity Lamotrigine EP Impurity F/ Lamotrigine Related Compound D<br>Stability Light Sensitive<br>Applications 3-(2,3-Dichlorobenzamido) Lamotrigine (Lamotrigine EP Impurity F) an impurity of the anticonvulsant Lamotrigine (L173250).<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 Emami, J. et al.: J. Pharmac. Biomed. Anal., 40, 999 (2006); Srinivasulu, P. et al.: Chromatographia, 70, 271 (2009);<br></p>Formula:C16H9Cl4N5OColor and Shape:NeatMolecular weight:429.09(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:381.42Methyl 2-Oxo-1-pyrrolidineacetate
CAS:<p>Applications Methyl 2-Oxo-1-pyrrolidineacetate is used a reagent in the synthesis of benzoquinolizidine and benzoindolizidine derivatives as anti-amnesic agents. It is also used as a a reagent in the synthesis of (acylamino)acridines as choline uptake enhancers.<br>References Zhao, S., et al.: Bioorg. Med. Chem., 7, 1637 (1999); Chaki, H., et al.: Bioorg. Med. Chem. Lett., 5, 1489 (1995)<br></p>Formula:C7H11NO3Color and Shape:ColourlessMolecular weight:157.17Isavuconazole-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:441.49Triclabendazole Sulfoxide
CAS:<p>Applications Triclabendazole Sulfoxide 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:C14H9Cl3N2O2SColor and Shape:ColourlessMolecular weight:375.66(S)-Lansoprazole
CAS:Controlled Product<p>Applications The S-enantiomer of Lansoprazole; a gastric proton pump inhibitor. An antiulcerative.<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:C16H14F3N3O2SColor and Shape:NeatMolecular weight:369.365-Hydroxy Omeprazole (~5% Triethylamine as stabilizer)
CAS:<p>Stability Hygroscopic, Temperature Sensitive<br>Applications 5-Hydroxy Omeprazole is the main 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:C17H19N3O4SColor and Shape:NeatMolecular weight:361.42(4R,5S)-cis-4,5-Diphenyloxazolidin-2-one
CAS:Purity:95.0%Color and Shape:SolidMolecular weight:239.2740020751953(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:187.244-Descarboxamido Rufinamide 4-Methyl Ester
CAS:Controlled Product<p>Applications 4-Descarboxamido Rufinamide 4-Methyl Ester is an impurity in the synthesis of Rufinamide (R701550), an 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:C11H9F2N3O2Color and Shape:NeatMolecular weight:253.202,3,4,5-Tetrahydro-3-(trifluoroacetyl)-1,5-methano-1H-3-benzazepine-7,8-diamine
CAS:Controlled Product<p>Applications Varenicline intermediate.<br>References Coe, J., et al.: J. Med. Chem., 48, 3474 (2005),<br></p>Formula:C13H14F3N3OColor and Shape:NeatMolecular weight:285.264-chloro-N-[3-(1H-imidazol-1-yl)propyl]-1,3-benzothiazol-2-amine
CAS:Purity:95.0%Molecular weight:292.7900085449219Fenbendazole Sulfoxide-d3
CAS:Controlled Product<p>Applications A labelled metabolite of Fenbendazole (F246750).<br>References McKellar, Q., et al.: J. Vet. Pharmacol. Ther., 13, 223 (1990), De Ruyck, H., et al.: Food Control., 11, 165 (2000),<br></p>Formula:C152H3H10N3O3SColor and Shape:White To Off-WhiteMolecular weight:318.37Lansoprazole 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:385.36(-)-Donepezil
CAS:Controlled Product<p>Applications (-)-Donepezil is an isomer of Donepezil (D531750), a nootropic, acting as an inhibitor of acetylcholinesterase.<br>References Ohnishi, A., et al.: J. Clin. Pharmacol., 33, 1086 (1993), Galli, A., et al.: Eur. J. Pharmacol., 270, 189 (1994)<br></p>Formula:C24H29NO3Color and Shape:NeatMolecular weight:379.492-((1,3-DIOXOISOINDOLIN-2-YL)METHYL)OXAZOLE-4-CARBOXYLIC ACID
CAS:Purity:95.0%Molecular weight:272.21600341796875Rivastigmine N-Oxide (Technical Grade)
CAS:Controlled Product<p>Applications Rivastigmine N-Oxide is an impurity of Rivastigmine (R541000, Tartrate Salt) which 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:C14H22N2O3Color and Shape:Light Yellow LiquidMolecular weight:266.345-Desamino 5-Oxo-2,5-dihydro Lamotrigine
CAS:Controlled Product<p>Impurity Lamotrigine EP Impurity A; Lamotrigine USP Related Compound C<br>Applications 5-Desamino 5-Oxo-2,5-dihydro Lamotrigine (Lamotrigine EP Impurity A; Lamotrigine USP Related Compound C) is an impurity of the anticonvulsant Lamotrigine (L173250).<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 Srinivasulu, P. et al.: Chromatographia, 70, 271 (2009);<br></p>Formula:C9H6Cl2N4OColor and Shape:White SolidMolecular weight:257.08Bis[(1S)-3,4-dihydro-1-phenyl-2(1H)-isoquinolinyl]-methanone
CAS:Controlled Product<p>Applications Bis[(1S)-3,4-dihydro-1-phenyl-2(1H)-isoquinolinyl]-methanone is a possible impurity of solifenacin (S676700) which is a muscarinic M3 receptor antagoinst. Solifenacin is used in treatment of urinary incontinence.<br>References Ikeda K., et al.: Arch. Pharmacol., 366, 97, (2002); Chapple, C.R., et al.: Br. J. Urol., 93, 303 (2004); Ohtake, A., et al.: Eur. J. Pharmacol., 492, 243 (2004); Brunton, S., et al.: Curr. Med. Res. Opin., 21, 71 (2005); Habb, F., et al.: Eur. Urol. 47, 376 (2005); Payne, C.K., et al.: Drugs, 66, 175 (2006)<br></p>Formula:C31H28N2OColor and Shape:NeatMolecular weight:444.57Lansoprazole N-oxide
CAS:<p>Lansoprazole N-oxide is a prodrug that is converted to lansoprazole sulfone in vivo. Lansoprazole N-oxide is used as a diluent in chromatographic experiments. It has been shown to be more sensitive than the parent compound, lansoprazole, for the diagnosis of reflux oesophagitis. Lansoprazole N-oxide also has a validation wavelength of 240 nm and can be detected by liquid chromatography. The active form of lansoprazole, lansoprazole sulfone, can be detected by gas chromatography mass spectrometry (GCMS).</p>Formula:C16H14F3N3O3SPurity:Min. 95%Color and Shape:White PowderMolecular weight:385.36 g/mol2-[[[4-(3-Methoxypropoxy)-3-methyl-2-pyridinyl]methyl]thio]-1H-benzimidazole
CAS:<p>Rabeprazole is a proton pump inhibitor that is used to treat acid-related disorders such as gastroesophageal reflux disease and peptic ulcers. Rabeprazole inhibits the production of gastric acid by blocking the hydrogen/potassium ATPase that is found in the parietal cells of the stomach. The main mechanism of action for rabeprazole is competitive inhibition of the proton pump, which leads to decreased gastric acid secretion. Rabeprazole can be administered orally or intravenously, with a half-life of about 2 hours. It has been shown to have an effect on human liver cytochrome P450s, but does not affect the activity of recombinant cytochrome P450 3A4 (CYP3A4). In clinical studies, rabeprazole was shown to have no adverse effects on CYP3A4 activity and may even increase it slightly.</p>Formula:C18H21N3O2SPurity:Min. 95%Color and Shape:White PowderMolecular weight:343.44 g/mol10,11-Dihydroxy-d10 Carbamazepine
Controlled Product<p>10,11-Dihydroxy-d10 Carbamazepine is a drug product that is used as an analytical reference standard. It is natural and synthetic impurity in the API (active pharmaceutical ingredient) Carbamazepine. The CAS number for 10,11-Dihydroxy-d10 Carbamazepine is 513-81-5. This compound has been synthesized by custom synthesis and is an impurity standard for HPLC analysis of carbamazepine. 10,11-Dihydroxy-d10 Carbamazepine is also a research and development chemical for the drug development industry. It has been classified as a niche chemical due to its high purity and pharmacopoeia grade.</p>Purity:Min. 95%1-Benzyl-4-(5,6-dimethoxy-1-oxoindan-2-ylidene)methylpiperidine
CAS:<p>1-Benzyl-4-(5,6-dimethoxy-1-oxoindan-2-ylidene)methylpiperidine is an analytical standard and a drug product. It is a synthetic compound that has been shown to have pharmacological effects similar to those of the analgesic or opioid drugs. 1-Benzyl-4-(5,6-dimethoxy-1-oxoindan-2-ylidene)methylpiperidine can be used as an impurity standard for HPLC analyses as well as metabolic studies. This compound is also known to have potential interactions with other drugs.</p>Formula:C24H27NO3Purity:Min. 98 Area-%Color and Shape:PowderMolecular weight:377.48 g/mol5-Methoxy-2-[[(4-Chloro-3,5-dimethyl-2-pyridinyl)methyl]sulfinyl]-5-methoxy-1H-benzimidazole
CAS:<p>5-Methoxy-2-[(4-chloro-3,5-dimethyl-2-pyridinyl)methyl]sulfinyl]-5-methoxy-1H benzimidazole is a synthetic drug product. It has been used as a positive control in metabolism studies and as an impurity standard. 5-Methoxy 2-[(4-chloro 3,5 dimethyl 2 pyridinyl)methyl]sulfinyl]-5 methoxy 1H benzimidazole is also a metabolite of the active pharmaceutical ingredient (API) which is used to develop drugs. This chemical is synthesized by custom synthesis and can be obtained at high purity levels. The metabolite of this compound is 5 methoxy 2-[(4 chloro 3,5 dimethyl 2 pyridinyl)methyl]sulfonyl]-5 methoxy 1H benzimidazole.</p>Formula:C16H16ClN3O2SPurity:Min. 95%Color and Shape:PowderMolecular weight:349.84 g/mol(1R,3S,5S)-8-Methyl-8-azabicyclo[3.2.1]oct-6-en-3-yl-2'-hydroxy-2',2'-di(thiophen-2''-yl)acetate
CAS:<p>Tanshinone IIA is an enantioselective hydroxamic acid that inhibits matrix metalloproteinase. It is a structural analogue of the hydroxamic acid Tanshinone I and has been shown to inhibit aggrecanase, which is an enzyme that hydrolyzes the glycosaminoglycan aggrecan. It also has anti-cancer effects due to its inhibition of cell proliferation in cancer cells. Tanshinone IIA can be used as a chiral synthon for polymerase chain reactions (PCR) because it contains a stereogenic centre in its structure.</p>Formula:C18H19NO3S2Purity:Min. 95%Color and Shape:PowderMolecular weight:361.48 g/molAlbendazole sulfoxide
CAS:<p>Albendazole sulfoxide is a sulfoxide of albendazole. The molecular docking analysis of the two molecules showed that the sulfoxide group is located in the same position as the hydroxyl group on albendazole. It has been shown that this replacement of hydroxyl with a sulfoxide group increases the solubility and stability of albendazole, which may be due to hydrogen bonding interactions between these groups. Albendazole sulfoxide has been shown to be an effective treatment for infections caused by parasites such as helminths. However, it should not be used in combination with drugs that are metabolized by cytochrome P450 enzymes because it can inhibit their activity.</p>Formula:C12H15N3O3SPurity:Min. 97 Area-%Color and Shape:White PowderMolecular weight:281.33 g/molPantoprazole sulfide N-oxide
CAS:<p>Pantoprazole sulfide N-oxide is a metabolite of pantoprazole, which is a proton pump inhibitor used to reduce stomach acid production. Pantoprazole sulfide N-oxide is an impurity in pantoprazole that can be detected by HPLC. It has been shown to have about the same biological activity as pantoprazole when given orally.</p>Formula:C16H15F2N3O4SPurity:Min. 95%Color and Shape:Off-White To Yellow SolidMolecular weight:383.37 g/mol(R)-5-Hydroxymethyl tolterodine
CAS:<p>(R)-5-Hydroxymethyl tolterodine is a prodrug that is metabolized by cytochrome P450 3A4 (CYP3A4) in the liver to its active form, tolterodine. This drug can be used as an alternative for gabapentin in the treatment of detrusor muscle overactivity associated with neurogenic bladder dysfunction. The pharmacokinetic properties of (R)-5-hydroxymethyl tolterodine are similar to those of gabapentin, including the elimination half-life and volume of distribution. However, unlike gabapentin, which has been shown to increase the glomerular filtration rate (GFR) and renal blood flow, there is no evidence that this drug has any effect on GFR or renal blood flow. There is also no evidence that (R)-5-hydroxymethyl tolterodine causes any symptoms that may be attributed to</p>Formula:C22H31NO2Purity:Min. 98 Area-%Color and Shape:Off-White PowderMolecular weight:341.49 g/mol5-Methoxy-2-[[(4-methoxy-3,5-dimethyl-2-pyridinyl)methyl]thio]-1H-benzimidazole
CAS:<p>Omeprazole is a drug that belongs to the class of benzimidazole compounds. It is an inhibitor of gastric acid secretion in the stomach, reducing the production of hydrochloric acid and pepsin. Omeprazole has been shown to have greater chemical stability than other proton pump inhibitors (PPIs), with a higher solubility in water and a longer shelf life. Omeprazole also has anti-inflammatory properties, which may be due to its inhibition of prostaglandin synthesis. Omeprazole also exhibits pharmacokinetic properties that are different from other PPIs. Omeprazole is rapidly absorbed following oral administration and has a high bioavailability, which can be attributed to its hydroxyl group. This hydroxyl group allows for esomeprazole (a prodrug) to be formed by hydrolysis in the gut or liver, increasing omeprazole's absorption and bioavailability.</p>Formula:C17H19N3O2SPurity:Min. 95%Color and Shape:PowderMolecular weight:329.42 g/mol4-Isobutyl-2-pyrrolidinone
CAS:<p>4-Isobutyl-2-pyrrolidinone is a colorless liquid that belongs to the category of phosphites. It has a high boiling point, which makes it suitable for use in organic solvents and as a heat transfer agent. The thermodynamic properties of 4-Isobutyl-2-pyrrolidinone have been evaluated using the protonation theory. It can be protonated at either the nitrogen or the methyl group, and both forms are present in solution. This means that 4-Isobutyl-2-pyrrolidinone is acidic and can react with other compounds to form salts called lactams. There are two isomers of this compound: cis and trans. Both isomers exist in equilibrium; however, the cis isomer predominates at room temperature. The most common impurities of 4-Isobutyl-2-pyrrolidinone are dehydration products formed during synthesis or</p>Formula:C8H15NOPurity:Min. 95%Color and Shape:White PowderMolecular weight:141.21 g/mol2-[[[3-Methyl-4-(methylthio)-2-pyridinyl]methyl]sulfinyl]-1H-benzimidazole
CAS:<p>2-[[[3-Methyl-4-(methylthio)-2-pyridinyl]methyl]sulfinyl]-1H-benzimidazole is a synthetic, nonsteroidal anti-inflammatory drug. It is soluble in methanol and ethanol, not soluble in water. The impurity standard of 2-[[[3-Methyl-4-(methylthio)-2-pyridinyl]methyl]sulfinyl]-1H-benzimidazole is 3-[2-[(3,4,5-trimethoxyphenyl)amino]-1H-benzimidazolium methyl sulfate].</p>Formula:C15H15N3OS2Purity:Min. 95%Molecular weight:317.43 g/molRabeprazole Impurity 2
CAS:<p>Rabeprazole Impurity 2 is a research and development impurity standard that is used for qualitative analysis. It can be custom synthesized to meet specific needs, and it can also be used in drug product synthesis. Rabeprazole Impurity 2 is a high purity synthetic compound that has been pharmacopoeia-qualified. It can also be used as a metabolite or analytical standard, and it has been studied for its metabolism studies with HPLC-MS. Rabeprazole Impurity 2 has CAS No. 1807988-36-8.</p>Formula:C18H19N3O4Purity:Min. 95%Molecular weight:341.36 g/mol3-Amino-6-(2,3-dichlorophenyl)-1,2,4-triazin-5(4H)-one
CAS:<p>3-Amino-6-(2,3-dichlorophenyl)-1,2,4-triazin-5(4H)-one is a triazine derivative that is used as an analytical reagent and intermediate. It has been used as a wastewater analysis method to measure the concentration of carbamazepine. 3-Amino-6-(2,3-dichlorophenyl)-1,2,4-triazin-5(4H)-one has also been shown to be useful in developing analytical methods for clinical trials. 3DCTKP has also been used to test the matrix effect of carbamazepine by analyzing it in different matrices such as water and human plasma.</p>Formula:C9H6Cl2N4OPurity:Min. 95 Area-%Color and Shape:PowderMolecular weight:257.08 g/mol5-Methoxy-2-[[(3,5-dimethyl-2-pyridinyl)methyl]sulphinyl]-1H-benzimidazole
CAS:<p>5-Methoxy-2-[[(3,5-dimethyl-2-pyridinyl)methyl]sulphinyl]-1H-benzimidazole is a natural product. It is an impurity in the drug development process and may be present as an analytical marker for impurities. 5-Methoxy-2-[(3,5-dimethylpyridinium)methyl]sulfinyl]-1Hbenzimidazole is used as a pharmacopoeia standard and can be synthesized on request.</p>Formula:C16H17N3O2SPurity:Min. 95%Color and Shape:PowderMolecular weight:315.39 g/molCarbendazim
CAS:<p>Carbendazim is a fungicide that inhibits the growth of fungi and bacteria. It has been shown to be potent inducers of polymerase chain reaction (PCR) amplification, with a rate constant of 0.0103 per minute. Carbendazim also has a significant effect on electrochemical impedance spectroscopy (EIS). The EIS analysis was used to compare carbendazim-treated cells with untreated cells, which showed that carbendazim causes an increase in the resistance across the cell membrane. This research suggests that carbendazim may be genotoxic, as it increased the amount of DNA damage observed in wild-type strains and altered the optical properties of DNA. Carbendazim is also an effective inhibitor of nitrite ion oxidation and colloidal gold deposition, which has led to its use as a water vapor control agent for plants.</p>Formula:C9H9N3O2Purity:Min. 95%Color and Shape:PowderMolecular weight:191.19 g/mol2,3-Dichlorobenzoic acid
CAS:<p>2,3-Dichlorobenzoic acid is an organic compound that belongs to the class of carboxylates. It is used as a drug substance in the treatment of mycobacterial infections. 2,3-Dichlorobenzoic acid has been shown to have antimicrobial activity against Mycobacterium tuberculosis and other mycobacteria. The sensitivity index for this compound was determined using a chromatographic method with human erythrocytes as the test organism. 2,3-Dichlorobenzoic acid displays its antibacterial activity by inhibiting protein synthesis and cell division. This drug also forms crystalline solids that are soluble in organic solvents such as chloroform or benzene.</p>Formula:C7H4Cl2O2Purity:Min. 95%Color and Shape:PowderMolecular weight:191.01 g/molOmeprazole impurity F and G
CAS:<p>Omeprazole is a proton pump inhibitor that inhibits the H+/K+-ATPase enzyme in gastric parietal cells. Omeprazole impurity F and G are metabolites of omeprazole. Omeprazole impurity F is a metabolite of omeprazole that forms by oxidation of the methylthio group in omeprazole to form a sulfoxide. Omeprazole impurity G is formed by hydrolysis of the methylthio group in omeprazole to form an alcohol. The purity of this product is high and can be custom synthesized based on customer's needs. It is also available as an HPLC standard or as an API impurity for use in metabolism studies.</p>Formula:C16H13N3O2SPurity:Min. 95%Color and Shape:Red PowderMolecular weight:311.36 g/mol4-Desmethoxy omeprazole sulfide
CAS:<p>4-Desmethoxy omeprazole sulfide is a metabolite of omeprazole, a drug that is used to treat ulcers and gastroesophageal reflux disease. 4-Desmethoxy omeprazole sulfide is not an impurity in the production of omeprazole, but is present as a natural component of omeprazole. This compound has been shown to be an impurity standard for HPLC analysis. The pharmacopoeia defines 4-desmethoxy omeprazole sulfide as an API impurity in drug products. It is also being studied for its potential use in drug development and research and development.</p>Formula:C16H17N3OSPurity:Min. 95%Color and Shape:White to off-white solid.Molecular weight:299.39 g/mol5-Methoxy-2-[[(4-methoxy-3,5-dimethyl-2-pyridinyl)methyl]sulfonyl]-1H-benzimidazole
CAS:<p>5-Methoxy-2-[[(4-methoxy-3,5-dimethyl-2-pyridinyl)methyl]sulfonyl]-1H-benzimidazole is an inhibitor of cytochrome P450 2C19. It has been shown to inhibit the activity of this enzyme in a concentration dependent manner and to enhance the activity of omeprazole by inhibiting its metabolism. 5-Methoxy-2-[(4-methoxy, 3,5 dimethylpyridiniumyl)methyl]sulfonyl]-1H benzimidazole is used as a model system for studying drug interactions due to its ability to inhibit cytochrome P450 2C19 and CYP2C19 protein expression. 5 METHOXY - 2 - [[ ( 4 - METHOXY - 3 , 5 - DIMETHYL - 2 - PYRIDINYL ) M</p>Formula:C17H19N3O4SPurity:Min. 95%Color and Shape:White Off-White PowderMolecular weight:361.42 g/mol6-(2,4-Dichlorophenyl)-1,2,4-triazine-3,5-diamine
CAS:<p>6-(2,4-Dichlorophenyl)-1,2,4-triazine-3,5-diamine is a metabolite that can be found in the urine and blood of humans. It has been shown to have cytotoxic effects on human lymphocytes and erythrocytes. 6-(2,4-Dichlorophenyl)-1,2,4-triazine-3,5-diamine is used as an impurity standard for HPLC analysis and as a reference compound for pharmacopoeia. This chemical is also used in the synthesis of some drugs. 6-(2,4-Dichlorophenyl)-1,2,4-triazine-3,5-diamine is not listed in any pharmacopoeia or natural product database.</p>Formula:C9H7Cl2N5Purity:Min. 95%Color and Shape:White PowderMolecular weight:256.09 g/molDi-2-thienylmethanone
CAS:<p>Di-2-thienylmethanone is a pyrazole with an activation energy of about 10.5 kcal/mol. It has been found to be toxic and can cause cell lysis. This molecule has been used in the synthesis of a number of drugs, including thiopental, a barbiturate that is used as an anaesthetic. Di-2-thienylmethanone is also the precursor for the synthesis of fluoroquinolones, which are potent antibacterial agents. The Friedel-Crafts reaction is one way this molecule is synthesized, and it involves the addition of an alkyl halide to an unsaturated double bond. This reaction is named after Charles Friedel and James Crafts who first discovered it in 1877.</p>Formula:C9H6OS2Purity:Min. 95%Color and Shape:White PowderMolecular weight:194.28 g/mol


