
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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Clidinium Bromide
CAS:Controlled Product<p>Applications 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:C22H26NO3·BrColor and Shape:White SolidMolecular weight:432.35Albendazole-2-amino-sulphone-D3 Hydrochloride
CAS:Controlled Product<p>Applications Albendazole-2-amino-sulphone-D3 Hydrochloride is a isotopically labeled compound form of Albendazole Sulfone (A511615). Albendazole Sulfone is a metabolite of Albendazole, an anthelmintic.<br>References Dominguez, L., et al.: Farmaco, 50, 697 (1995), De Laurentis, N., et al.: Pharm. Pharmacol. Lett., 6, 2: 51 (1996)<br></p>Formula:C10D3H10N3O2S·ClHColor and Shape:White To Off-WhiteMolecular weight:278.7743-(2-Methylpropyl)pentanedioic Acid
CAS:<p>Applications An impurity of Pregabalin (P704800) with anticonvulsant properties.<br>References Yang, J. et al.: Gaox. Huax. Gong. Xueb., 23, 825 (2009); Zhang, G. et al.: Zhong. Yiyao Gong. Zaz., 38, 617 (2007);<br></p>Formula:C9H16O4Color and Shape:White To Light BrownMolecular weight:188.22Rufinamide-5-Carboxamide
CAS:Controlled Product<p>Applications Rufinamide-5-Carboxamide is an impurity of Rufinamide (R701550) which is an antiepileptic triazole derivative which decreases firing by neurons at sodium channels. Anticonvulsant. Neuroprotective & Neuroresearch Product.<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:C10H8F2N4OColor and Shape:NeatMolecular weight:238.192-Methoxy-4-(6-nitro-1H-benzo[d]imidazol-2-yl)phenol
CAS:Purity:97%Molecular weight:285.25900268554694-Methoxy-2-(((6-methoxy-1H-benzo[d]imidazol-2-yl)sulfonyl)methyl)-3,5-dimethylpyridine 1-oxide
CAS:Purity:95.0%Molecular weight:377.42001342773442-(2-Aminoethyl)-1-methyl-1H-imidazole x 2 HCl
CAS:Formula:C6H13Cl2N3Purity:98.0%Color and Shape:Liquid, No data available.Molecular weight:198.09Tinidazole
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:247.27Lifitegrast
CAS:Controlled Product<p>Applications Lifitegrast is used for the treatment of signs and symptons of dry eye diseases. It also Inhibites corneal inflammation that is capable of causing pains, blurred vision and ocular discomfort in sufferer.<br>References Holland, E. J., et al.: Curr. Med. Res. Opin., 32, 1759 (2016); Sun, Y., et al.: J. Ocul. Pharmacol. Ther., 29, 395 (2013);<br></p>Formula:C29H24Cl2N2O7SColor and Shape:White To Off-WhiteMolecular weight:615.4812-((4,5-Diphenyloxazol-2-yl)thio)-N-propylpropanamide
CAS:Purity:97.0%Molecular weight:366.48001098632811,2-Dimethylimidazole-4-sulfonyl chloride
CAS:Formula:C5H7ClN2O2SPurity:95%Color and Shape:SolidMolecular weight:194.63α,α,2,6-Tetrachloro-toluene
CAS:Controlled Product<p>Impurity Isoconazole Impurity 9<br>Applications α,α,2,6-Tetrachloro-toluene (Isoconazole Impurity 9) is an impurity of Isoconazole (I798250), an antibacterial and antifungal agent used to treat vaginitis.<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 Asikoglu, M. et al.: J. Pharm. Pharmacol. 47, 717 (1995); Marrero-Ponce, Y. et al.: Bioorg. Med. Chem. 13, 2881 (2005)<br></p>Formula:C7H4Cl4Color and Shape:Light YellowMolecular weight:229.922-Isobutyl-1H-benzoimidazol-5-ylamine
CAS:Formula:C11H15N3Purity:98%Color and Shape:SolidMolecular weight:189.2621’-Hydroxy Midazolam
CAS:Controlled Product<p>Applications A metabolite of Midazolam (M343000(P)), which is an anesthetic; anticonvulsant; sedative; hypnotic. Midazolam is also a positive allosteric modulator of the GABAA receptor.<br>References Dundee, J., et al.: Drugs, 28, 519 (1984), Galetin, A., et al.: Drug Metab. Dispos., 30, 1512 (2002), Uchaipichat, V., et al.: Drug Metab. Dispos., 34, 449 (2006), Lewis, B., et al.: Biochem. Pharmacol., 73, 1463 (2007), Dundee, J. W., et al.: Drugs, 28, 519 (1984), Lahat, E., et al.: Br. Med. J., 321, 83 (2000)<br></p>Formula:C18H13ClFN3OColor and Shape:Off-WhiteMolecular weight:341.775-(4'-(BROMOMETHYL)-[1,1'-BIPHENYL]-2-YL)-2-TRITYL-2H-TETRAZOLE
CAS:Purity:95%Molecular weight:557.49499511718754-Ethyl-5-fluoropyrimidine
CAS:<p>Impurity Voriconazole EP Impurity C<br>Stability Volatile<br>Applications 4-Ethyl-5-fluoropyrimidine (Voriconazole EP Impurity C) is a Voriconazole (V760000) impurity.<br>References Miletic, T. et al.: Carb. polym., 98, 122 (2013); Rieke, R., et al.: Science, 246, 1260 (1989), Dickinson, R., et al.: Bioorg. Med. Chem. Lett., 6, 2031 (1996),<br></p>Formula:C6H7FN2Color and Shape:NeatMolecular weight:126.13Ornidazole Isomer (Impurity)
CAS:Controlled Product<p>Applications An isomeric impurity of Ornidazole (0688500), which maintains anti-infective properties.<br>References Hoffer, M., et al.: J. Med. Chem., 17, 1019 (1974);<br></p>Formula:C7H10ClN3O3Color and Shape:NeatMolecular weight:219.632-Phenyl-1H-benzoimidazol-5-ylamine
CAS:Purity:97.0%Color and Shape:SolidMolecular weight:209.25199890136727-Bromo-6-methyl-1-((2-(trimethylsilyl)ethoxy)methyl)-1H-indazole
CAS:Purity:95.0%Molecular weight:341.32400512695312-(Pyridin-3-yl)-1H-benzo[d]imidazole
CAS:Purity:95.0%Color and Shape:SolidMolecular weight:195.225006103515627-CHLORO-5-METHYL-2-(2-(1-METHYL-1H-BENZO[D]IMIDAZOL-2-YL)ETHYL)-2,3-DIHYDRO-1H-PYRROLO[3,4-C]PYRIDINE-1,6(5H)-DIONE
CAS:Purity:95.0%Molecular weight:356.809997558593752-Methyl-4,5-diphenyloxazole
CAS:Purity:95.0%Color and Shape:LiquidMolecular weight:235.285995483398446-(2,3-Dichlorophenyl)-1,2,4-triazine-3,5(2H,4H)-dione
CAS:<p>6-(2,3-Dichlorophenyl)-1,2,4-triazine-3,5(2H,4H)-dione is a chlorinating agent that converts alcohols to alkyl chlorides. It is used for the conversion of diazotizable aromatic compounds to diazo compounds. This compound has been shown to be neuroprotective in animal models and provides protection against glutamate excitotoxicity. 6-(2,3-Dichlorophenyl)-1,2,4-triazine-3,5(2H,4H)-dione also reacts with nitrite ions to form the corresponding nitroso derivatives. These derivatives can cause DNA damage and are mutagenic. 6-(2,3-Dichlorophenyl)-1,2,4-triazine-3,5(2H,4H)-dione has been shown to react with aminoguanidine to produce a chromat</p>Formula:C9H5Cl2N3O2Purity:Min. 95%Color and Shape:PowderMolecular weight:258.06 g/mol2-[[[(4-Methoxypropoxy)-3-methyl-2-pyridinyl]methyl]sulfonyl]-1H-benzimidazole
CAS:<p>2-[[[(4-Methoxypropoxy)-3-methyl-2-pyridinyl]methyl]sulfonyl]-1H-benzimidazole is a protonated sulfonamide that is used as an analytical method to detect the presence of other drugs in human liver tissue. It has been shown to inhibit the activity of cytochrome P450 3A4 (CYP3A4), one of the enzymes responsible for metabolizing many drugs. Bromoenol lactone and powder diffraction spectrum are two additional analytical methods that can be used to detect 2-[([(4-methoxypropoxy)-3-methyl-2-pyridinyl]methyl]sulfonyl]-1H-benzimidazole.</p>Formula:C18H21N3O4SPurity:Min. 95%Color and Shape:White/Off-White SolidMolecular weight:375.44 g/molRabeprazole
CAS:<p>Rabeprazole is a proton pump inhibitor that suppresses the production of stomach acid by blocking the H+/K+ ATPase enzyme. It is used for the treatment of gastroesophageal reflux disease, peptic ulcers, and Zollinger-Ellison syndrome. Rabeprazole has been shown to be more effective than omeprazole in reducing gastric acid secretion in two-way crossover studies. Rabeprazole also has been shown to inhibit the growth of antibiotic-resistant strains of bacteria. In addition, rabeprazole binds to metal ions like iron and copper, which may affect its pharmacokinetics and efficacy. This drug is currently being investigated as an analytical method for determination of proton pump inhibitors in human serum and urine samples by electrochemical impedance spectroscopy (EIS).</p>Formula:C18H21N3O3SPurity:Min. 95%Color and Shape:White PowderMolecular weight:359.44 g/mol2-(3-(1-Benzylpiperidin-4-yl)-2-oxopropyl)-4,5-dimethoxybenzoic acid sodium salt
<p>2-(3-(1-Benzylpiperidin-4-yl)-2-oxopropyl)-4,5-dimethoxybenzoic acid sodium salt is a white to off-white crystalline powder. It is soluble in water and sparingly soluble in alcohol. This product is used as an analytical standard and has been found to be a metabolite of the drug clozapine. 2-(3-(1-Benzylpiperidin-4-yl)-2-oxopropyl)-4,5-dimethoxybenzoic acid sodium salt has also been found to be an impurity in the drug product lamotrigine.</p>Formula:C24H29NO5•NaPurity:Min. 95%Molecular weight:434.49 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/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/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/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/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/mol5,6-Dimethoxy-2-(4-piperidinyl)methyleneindan-1-one (donepezil impurity)
CAS:<p>5,6-Dimethoxy-2-(4-piperidinyl)methyleneindan-1-one (donepezil impurity) is an analytical standard used as a reference in HPLC assays for donepezil. It is also a metabolite of donepezil and has been found to have pharmacological activity similar to that of the parent compound. This impurity is present in donepezil drug products at levels up to 0.5%.</p>Formula:C17H21NO3Purity:Min. 95%Molecular weight:287.35 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%Omeprazole 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/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/molMethyl 2,2-dithienylglycolate
CAS:<p>Intermediate for tiotropium bromide synthesis</p>Formula:C11H10O3S2Purity:Min. 95%Color and Shape:White PowderMolecular weight:254.33 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]sulphonyl]-1H-benzimidazole N-oxide
CAS:<p>5-Methoxy-2-[[(4-methoxy-3,5-dimethyl-2-pyridinyl)methyl]sulphonyl]-1H-benzimidazole N-oxide is a cyclic sulfoxide that has shown to be a potent inhibitor of gastric acid secretion. It is an important intermediate in the synthesis of esomeprazole magnesium, a proton pump inhibitor used to treat gastroesophageal reflux disease and other gastrointestinal disorders. 5-Methoxy-2-[(4-methoxy 3,5 dimethyl 2 pyridinyl) methyl] sulphonyl]-1H benzimidazole N oxide is also known as (RS)-N-[4-(4′ methoxyphenyl)-3,5 dimethylpyrazol -2 - ylmethyl] methanesulfonamide. This compound has been shown to have a polymorphic form with two different</p>Formula:C17H19N3O5SPurity:Min. 95%Color and Shape:PowderMolecular weight:377.42 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/mol1-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/molLansoprazole 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-Mercaptobenzimidazole
CAS:<p>2-Mercaptobenzimidazole is a chemical compound that can be used for the treatment of infectious diseases. It has been shown to have antioxidative properties and inhibit the growth of bacteria. 2-Mercaptobenzimidazole also has an effect on human serum, which may be due to its ability to bind with proteins in serum and form hydrogen bonds. 2-Mercaptobenzimidazole is stable at high temperatures and has been shown as an effective antimicrobial agent against gram positive and gram negative bacteria.</p>Formula:C7H6N2SPurity:Min. 99 Area-%Color and Shape:White/Off-White SolidMolecular weight:150.19 g/mol5-Methoxy-2-[[(4-methoxy-3,5-dimethyl-2-pyridinyl)methyl]sulfinyl]-1H-benzimidazole N-oxide
CAS:<p>5-Methoxy-2-[[(4-methoxy-3,5-dimethyl-2-pyridinyl)methyl]sulfinyl]-1H-benzimidazole N-oxide is an ammonium salt of a sulfoxide with a chloride. It is also known as esomeprazole magnesium. This drug is used in the preparation of pharmaceutical preparations and is used to treat gastroesophageal reflux disease (GERD), peptic ulcers, and other conditions. The magnesium salt form is a polymorphic substance that has a crystalline form that occurs in nature, called alpha form, and a synthetic form that occurs in laboratory experiments and has been designated beta form. The alpha form exhibits enantioselectivity when it binds to the enzyme pepsin, which causes the drug to have an antiulcer effect.</p>Formula:C17H19N3O4SPurity:Min. 95%Color and Shape:PowderMolecular weight:361.42 g/mol


