
APIs for research and impurities
Active Pharmaceutical Ingredients (APIs) are the substances in drugs responsible for their therapeutic effects. In this section, you will find a wide variety of APIs intended for research use. These compounds are essential for the development, testing, and validation of new pharmaceutical formulations. CymitQuimica offers high-quality APIs to support research in drug discovery and development.
Subcategories of "APIs for research and impurities"
- Alkaloids
- Aminoacids and derivatives
- Anthraquinones and derivatives
- Benzimidazole and Imidazole Derivatives
- Benzodiazepine Derivatives
- Carbohydrates and glycoconjugates
- Esters and Derivatives
- Fatty Acids and Lypidic Derivatives
- Flavonoids and Polyphenols
- Free Radicals and Oxidant/Reducing Agents
- Ketones and derivatives
- Natural and semi-synthetic antibiotics
- Nitriles and Cyano Derivatives
- Nitrosamines and Derivatives
- Nucleosides and Nucleotides
- Organic Phosphates and Phosphonates
- Organic Sulphonates and Sulphates
- Organometallics
- Others
- Peptides and Proteins
- Polymers and Derivatives
- Purines and Pyrimidine Derivatives
- Quinazoline and Quinoline Derivatives
- Quinones and Derivatives
- Salts and Derivatives of Active Pharmaceutical Ingredients (API)
- Steroids and Derivatives
- Sulfonamides and Derivatives
- Terpenoids and Derivatives
- Thiazolidinediones and Thiopyrans
- β-Adrenergic Compounds
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Products of "APIs for research and impurities"
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Rosuvastatin Impurity 37
CAS:Formula:C26H37N3O6SColor and Shape:White To Off-White SolidMolecular weight:519.6620-Hydroxyecdysone, 97%
CAS:Formula:C27H44O7Purity:≥ 96.5%Color and Shape:White to off-white powderMolecular weight:480.64Isometheptene Impurity 2 (Mixture of Isomers)
CAS:Formula:C10H19NOColor and Shape:Yellow LiquidMolecular weight:169.27Deltamethrin Impurity 1 (Mixture of Diastereomers)
CAS:Formula:C8H10Br2O2Color and Shape:White To Off-White SolidMolecular weight:297.97Loperamide EP Impurity D
CAS:Formula:C29H34N2O2Color and Shape:White To Off-White SolidMolecular weight:442.60Rosuvastatin EP Impurity F (Rosuvastatin USP Related Compound C)
CAS:Formula:C29H40FN3O6SColor and Shape:White To Off-White SolidMolecular weight:577.71Galanthamine-O-methyl-d3
CAS:Controlled ProductApplications A deuterated selective acetylcholinesterase inhibitor. Useful for the treatment of Alzheimer's disease. Not a dangerous good if item is equal to or less than 1g/ml and there is less than 100g/ml in the package References Bickel, U., et al.: Clin. Pharmacol. Ther., 50, 420 (1991), Maelicke, A., et al.: Drugs Dis Today, 1, 53 (1996), Sauvaltre, T., et al.: J. Med. Chem., 50, 5311 (2007),Formula:C172H3H18NO3Color and Shape:NeatMolecular weight:290.37Teneligliptin Impurity 1
Formula:C42H58N12O2S2Color and Shape:White To Off-White SolidMolecular weight:827.13Satraplatin
CAS:Formula:C10H22Cl2N2O4PtPurity:≥ 98.0%Color and Shape:White to light yellow powderMolecular weight:500.28Nicardipine EP Impurity A HCl (Nicardipine USP Related Compound B HCl, Dehydro Nicardipine HCl)
CAS:Formula:C26H27N3O6·HClColor and Shape:White To Off-White SolidMolecular weight:477.52 36.46Di(thiophen-2-yl)methanone
CAS:Formula:C9H6OS2Purity:97%Color and Shape:SolidMolecular weight:194.2733Moclobemide N-oxide
CAS:Moclobemide N-oxide is a metabolite of moclobemide, an antidepressant drug. It is a white to off-white crystalline powder with a molecular formula of C14H14N2O4 and a molecular weight of 237.3. Moclobemide N-oxide is used in the treatment of depression, but it has not been approved for clinical use in the United States. Moclobemide N-oxide is extensively metabolized by cytochrome P450 enzymes, which may lead to variations in its activity among patients. The following are examples of high quality descriptions: Rifapentine is an anti-tuberculosis drug that belongs to the class of rifamycins. It is the most active of the rifamycins for the treatment of tuberculosis. Rifapentine inhibits bacterial growth by binding to DNA-dependent RNA polymerase, thereby preventing transcription and replication. The high frequencyFormula:C13H17ClN2O3Purity:Min. 95%Molecular weight:284.74 g/molL-Glutamine, N2-[(phenylmethoxy)carbonyl]-, methyl ester
CAS:Formula:C14H18N2O5Purity:98%Color and Shape:SolidMolecular weight:294.3031Hexamidine EP Impurity D
CAS:Formula:C22H28N2O4Color and Shape:White To Off-White SolidMolecular weight:384.48N-Desmethyl cyamemazine maleate
CAS:Cyamemazine is an antipsychotic drug that has been used for the treatment of schizophrenia and other psychotic disorders. N-Desmethyl cyamemazine maleate, a metabolite of cyamemazine, has been shown to have neuroprotective effects in vitro.Formula:C18H19N3S·C4H4O4Purity:Min. 95%Molecular weight:425.5 g/molVarenicline Diamine Impurity - Bio-X ™
CAS:Varenicline Diamine Impurity - Bio-X ™ is a diamine impurity of varenicline, a medication used for smoking cessation. Varenicline acts as a partial agonist at α4β2 nicotinic acetylcholine receptors, which are involved in the addictive effects of nicotine. Researchers utilize this compound to study its effects on nicotine addiction and develop potential treatments for smoking cessation. This impurity is used as a reference standard or analytical tool in the quality control and manufacturing process of varenicline and serves as an important marker for ensuring the purity and consistency of varenicline during its production, helping to maintain the medication's safety and efficacy for patients seeking to quit smoking.This product is part of our Bio-X ™ Range. These products are aimed at life science researchers who need high quality ready-to-use products for assay development, screening or other R&D work. With a solubility datasheet and convenient vials, all of our Bio-X ™ products are in stock across our global warehouses for rapid delivery and ease of use.Formula:C13H14F3N3OPurity:Min. 95%Color and Shape:PowderMolecular weight:285.27 g/molOxyfedrine
CAS:Controlled ProductStability Moisture Sensitive Applications Oxyfedrine acts as a vasodilator affecting the coronary base flow. References Baraka, Y. et al.: J. Drug Res., 12, 161 (1980);Formula:C19H23NO3Color and Shape:NeatMolecular weight:313.39N-hydroxy-1-[(4-methoxyphenyl)methyl]indole-6-carboxamide
CAS:Formula:C17H16N2O3Purity:98%Color and Shape:SolidMolecular weight:296.32054Sodium 7-[(3-chloro-6,11-dihydro-6-methyldibenzo[c,f][1,2]thiazepin-11-yl)amino]heptanoate S,S-dioxide
CAS:Formula:C21H24ClN2NaO4SPurity:98%Color and Shape:SolidMolecular weight:458.934Clethodim Impurity 21 Chloride (Mixture of Z and E Isomers)
CAS:Formula:C9H16ClN4·ClColor and Shape:White To Off-White SolidMolecular weight:215.70 35.45Benzeneacetic acid, α-amino-4-hydroxy-, methyl ester, hydrochloride (1:1), (αS)-
CAS:Formula:C9H12ClNO3Purity:95%Color and Shape:SolidMolecular weight:217.6495Ref: 4Z-I-1710
Discontinued productTenoxicam
CAS:Controlled ProductApplications Nonsteroidal anti-inflamatory agent. Not a dangerous good if item is equal to or less than 1g/ml and there is less than 100g/ml in the package References Bird, H.A., et al.: Curr. Med. Res. Opin., 8, 9 (1982), Gonzalez, J.P., et al.: Drugs, 34, 289 (1987), Al-Obaid, A.M., et al.: Anal. Profiles Drug Subs. Excip., 22, 431 (1993),Formula:C13H11N3O4S2Color and Shape:NeatMolecular weight:337.37Dtpa-bma
CAS:Please enquire for more information about Dtpa-bma including the price, delivery time and more detailed product information at the technical inquiry form on this pageFormula:C16H29N5O8Purity:Min. 95%Molecular weight:419.43 g/molTerbutaline Impurity 20 HCl
Formula:C26H28BrNO3·HClColor and Shape:White To Off-White SolidMolecular weight:482.42 36.46Sacubitril Impurity 11 HCl
CAS:Formula:C18H21NO2·HClColor and Shape:White To Off-White SolidMolecular weight:283.37 36.46Lenalidomide Impurity 44
Formula:C13H13N3O4Color and Shape:White To Off-White SolidMolecular weight:275.261,4-BenzenediaMine, N1-[2-(diMethylaMino)ethyl]-5-Methoxy-N1-Methyl-N4-[4-(1-Methyl-1H-indol-3-yl)-2-pyriMidinyl]-2-nitro-
CAS:Formula:C25H29N7O3Purity:95%Color and Shape:SolidMolecular weight:475.5429Dimenhydrinate Impurity 4 Sodium Salt
CAS:Formula:C7H7N4O5S·NaColor and Shape:White To Off-White SolidMolecular weight:259.22 22.99Brivudine Impurity 8
CAS:Formula:C11H12Br2N2O5Color and Shape:Pale Yellow SolidMolecular weight:412.03Atracurium EP Impurity G (DL-Laudanosine)
CAS:Formula:C21H27NO4Color and Shape:White To Off-White SolidMolecular weight:357.452-Chloro-4-ethoxy-6-methyl-pyrimidine
CAS:Formula:C7H9ClN2OPurity:98%Color and Shape:SolidMolecular weight:172.61223,5-Dihydroxyphenylpropanoic Acid 3-Sulfate Disodium Hydrate
CAS:Formula:C9H8Na2O7S·(H2O)Color and Shape:Pale Red SolidHydrocortisone EP Impurity D
CAS:Formula:C21H30O6Color and Shape:White To Off-White SolidMolecular weight:378.47Ref: 4Z-C-2711
Discontinued productCyclopentanecarboxylic acid
CAS:Formula:C6H10O2Purity:98%Color and Shape:LiquidMolecular weight:114.1424Benzene, 2-(bromomethyl)-1-chloro-3-fluoro-4-methyl-
CAS:Formula:C8H7BrClFPurity:95%Color and Shape:SolidMolecular weight:237.4966Rivaroxaban
CAS:Rivaroxaban is an analog of the kinase inhibitor which has been shown to have potent anticancer activity. It works by inhibiting kinases that are involved in cancer cell growth and survival. Rivaroxaban induces apoptosis in human and Chinese hamster ovary cells, leading to tumor cell death. This drug also inhibits glutathione S-transferase activity, which plays a role in the detoxification of reactive oxygen species and other electrophilic compounds. Rivaroxaban has been found to be effective against a variety of cancer types, including breast, lung, prostate, and colon cancers. It is a promising candidate for use as an anticancer therapy due to its ability to inhibit protein kinases that are overexpressed in cancer cells.Formula:C19H18ClN3O5SPurity:Min. 95%Molecular weight:435.9 g/molRef: 4Z-V-0249
Discontinued productEtodolac
CAS:Formula:C17H21NO3Purity:≥ 98.0%Color and Shape:White to off-white powderMolecular weight:287.35N-Desmethyl N-hydroxymethyl regorafenib
CAS:N-Desmethyl N-hydroxymethyl regorafenib is a drug product that is used in the development of new drugs. It is a chemical intermediate that has been synthesized to produce a desired metabolite. The molecule contains two methyl groups, two hydroxyl groups, and one carboxylic acid group on the aromatic ring. This product has been purified to high purity by analytical methods. N-Desmethyl N-hydroxymethyl regorafenib is an impurity standard used in HPLC to identify this compound in other compounds. It can also be used as a metabolite in pharmacopoeia studies, or for research and development purposes.Formula:C21H15ClF4N4O4Purity:Min. 95%Molecular weight:498.80 g/mol2,4,11,13-Tetraazatetradecanediimidamide,N,N''-bis(4-chlorophenyl)-3,12-diimino-, diacetate
CAS:Formula:C26H38Cl2N10O4Purity:98%Color and Shape:SolidMolecular weight:625.5505Indomethacin
CAS:Formula:C19H16ClNO4Purity:≥ 98.0% (dried basis)Color and Shape:White to off-white or pale pink powderMolecular weight:357.802-Chloro-5-hydroxybenzoic acid
CAS:Formula:C7H5ClO3Purity:97%Color and Shape:SolidMolecular weight:172.5658(1R,3r,5S)-8-(1-Methylethyl)-8-aza-bicyclo[3.2.1]oct-3-yl (2RS)-3-hydroxy-2-phenyl-propanoate
CAS:Color and Shape:NeatMethyl 4-hydroxy-2-methyl-(2H)-1,2-benzothiazine-3-carboxylate-1,1-dioxide
CAS:Methyl 4-hydroxy-2-methyl-(2H)-1,2-benzothiazine-3-carboxylate-1,1-dioxide is a centrosymmetric molecule with an aspergillus flavus conformation. It is an acetanilide derivative that has been shown to be an effective antioxidant and medicine for the treatment of cancer. This product is also used in the production of hydrogen bonds and linkers in organic synthesis. The yields are high and it can be oriented during irradiation.Formula:C11H11NO5SPurity:Min. 95%Color and Shape:PowderMolecular weight:269.28 g/molMethotrexate EP Impurity C (Methotrexate USP Related Compound C)
CAS:Formula:C20H21N7O6Molecular weight:455.43Azithromycin N-ethyl
CAS:Azithromycin N-ethyl is a drug development and analytical impurity standard. It is used as an analytical reference material for high-performance liquid chromatography (HPLC) and nuclear magnetic resonance spectroscopy (NMR). Azithromycin N-ethyl has been shown to be a metabolite of azithromycin, which is a niche antibiotic with broad activity against Gram-positive bacteria. This product can also be synthesized from erythromycins using methylation. CAS Number: 92594-45-1Formula:C39H74N2O12Purity:Min. 95%Molecular weight:763.01 g/mol5H-Dibenz[b,f]azepine-5-carboxamide, 10,11-dihydro-10-oxo-
CAS:Formula:C15H12N2O2Purity:98%Color and Shape:SolidMolecular weight:252.268Paroxetine hydrochloride
CAS:Formula:C19H20FNO3·HCl·5(H2O)Purity:98.0 - 102.0 % (anhydrous basis)Color and Shape:White crystalline powderMolecular weight:374.83Hydroxyurea
CAS:Formula:CH4N2O2Purity:98.0 - 102.0 % (anhydrous basis)Color and Shape:White to off-white powderMolecular weight:76.06(RS)-Methyl ethyl 1,4-dihydro-2,6-dimethyl-4-(3-nitrophenyl)pyridine-3,5-dicarboxylate
CAS:Methyl ethyl 1,4-dihydro-2,6-dimethyl-4-(3-nitrophenyl)pyridine-3,5-dicarboxylate is a propranolol hydrochloride derivative that has vasodilatory effects. It is used as a nitrovasodilator to treat angina pectoris and high blood pressure. Methyl ethyl 1,4-dihydro-2,6-dimethyl-4-(3-nitrophenyl)pyridine-3,5-dicarboxylate binds to the alpha1 adrenergic receptors in the heart and causes vasodilation by inhibiting the release of norepinephrine from sympathetic nerves. This drug also inhibits the binding of norepinephrine to cardiac beta receptors which decreases the heart rate and contractility of cardiac muscle. Methyl ethyl 1,4-dihydro-2,6Formula:C18H20N2O6Purity:Min. 95%Color and Shape:Yellow PowderMolecular weight:360.36 g/molTazobactam Acid Impurity 16 Sodium Salt
CAS:Formula:C8H9N4O3S·NaColor and Shape:Pale Yellow SolidMolecular weight:241.25 22.99(S)-2-((4-Hydroxybenzyl)amino)propanamide
CAS:Please enquire for more information about (S)-2-((4-Hydroxybenzyl)amino)propanamide including the price, delivery time and more detailed product information at the technical inquiry form on this pageFormula:C10H14N2O2Purity:Min. 95%Molecular weight:194.23 g/molMETHYL 2-AMINO-5-BROMOBENZOATE
CAS:Formula:C8H8BrNO2Purity:98%Color and Shape:SolidMolecular weight:230.0586Pantoprazole-d3
CAS:Controlled ProductApplications Pantoprazole-d3 is the labeled analogue of Pantoprazole, an antiulcerative. Gastric pump inhibitor. References Simon, W.A., et al.: Biochem. Pharmacol., 39, 1799 (1990)Formula:C16H12D3F2N3O4SColor and Shape:Off-WhiteMolecular weight:386.39Benz[A]anthracene-7-chloromethane-13C
CAS:Please enquire for more information about Benz[A]anthracene-7-chloromethane-13C including the price, delivery time and more detailed product information at the technical inquiry form on this pageFormula:C19H13ClPurity:Min. 95%Molecular weight:277.7 g/molPerindopril-D4
CAS:Controlled ProductApplications Perindopril-d4 is the labeled analogue of Perindopril (P287500), an angiotensin-converting enzyme (ACE) inhibitor. Antihypertensive. References Lees, K.R., et al.: Brit. J. Clin. Pharmacol., 23, 159 (1987); Morgan, T., et al.: J. Cardiovasc. Pharmacol., 10, Supp. 7, S116, (1987)Formula:C19H28D4N2O5Color and Shape:White To Off-WhiteMolecular weight:372.49Neostigmine methyl sulfate
CAS:Formula:C13H22N2O6SPurity:98%Color and Shape:SolidMolecular weight:334.38863-Bromo-2,6-difluorophenol
CAS:Formula:C6H3BrF2OPurity:98%Color and Shape:SolidMolecular weight:208.9882N-Benzylpiperazine-d8 Dihydrochloride
CAS:Controlled ProductApplications Controlled susbtancePiperazine derivative used as reference materials for forensic laboratories. They affect the central and the autonomic nervous systems, the blood pressure, and smooth muscle. References Bannwarth, W., et al.: Bioorg. Med. Chem., Lett., 6, 1525 (1996), Greenwald, R., et al.: J. Med. Chem., 43, 475 (2000), Wills, A., et al.: Curr. Opin. Chem. Biol., 7, 346 (2003), Heidler, P., et al.: Bioorg. Med. Chem., 13, 585 (2005),Formula:C11H10D8Cl2N2Color and Shape:NeatMolecular weight:257.23Fludarabine Phosphate EP Impurity F
CAS:Formula:C12H18FN5O8PColor and Shape:White To Off-White SolidMolecular weight:391.28Tranexamic Acid EP Impurity D
CAS:Formula:C8H9NO2Color and Shape:White To Off-White SolidMolecular weight:151.172-(1-(((tert-Butoxycarbonyl)amino)methyl)cyclohexyl)acetic acid
CAS:Formula:C14H25NO4Purity:97%Color and Shape:SolidMolecular weight:271.3526Acyclovir, USP grade
CAS:Formula:C8H11N5O3Purity:98.0 - 101.0 %Color and Shape:White to pale yellow crystalline powderMolecular weight:225.20Hyperoside
CAS:Controlled ProductFormula:C21H20O12Color and Shape:Light Yellow To YellowMolecular weight:464.38Butanedioic acid,2-sulfo-, 1,4-bis(2-ethylhexyl) ester, calcium salt (2:1)
CAS:Formula:C40H74CaO14S2Purity:95%Color and Shape:SolidMolecular weight:883.2152Harpagoside
CAS:Applications Harpagoside is an iridoid glycoside along with with Harpagide (H105270), the potential to be strong anti-inflammatory agents providing the bulk of the observed effects from their plant origins. References Zhang, L. et al.: Bioorg Med. Chem., 19, 4882 (2011); Wen, B. et al.: J. Ethnopharm., 147, 503 (2013);Formula:C24H30O11Color and Shape:NeatMolecular weight:494.49Ozagrel impurity III
CAS:Please enquire for more information about Ozagrel impurity III including the price, delivery time and more detailed product information at the technical inquiry form on this pageFormula:C13H16O2Purity:Min. 95%Molecular weight:204.26 g/mol5-Methyl-2-(1-methylethyl)phenol
CAS:Formula:C10H14OPurity:%Color and Shape:SolidMolecular weight:150.2176Irinotecan EP Impurity B (Irinotecan USP Related Compound A, 10-Hydroxy Camptothecin)
CAS:Formula:C20H16N2O5Molecular weight:364.36Cetilistat Impurity 9
CAS:Formula:C10H11NO3Color and Shape:White To Off-White SolidMolecular weight:193.20Candesartan (Candesartan Cilexetil EP Impurity G, Candesartan Cilexetil USP Related Compound G)
CAS:Formula:C24H20N6O3Color and Shape:White To Off-White SolidMolecular weight:440.46