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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Etoposide EP Impurity B (cis-Etoposide)
CAS:Formula:C29H32O13Color and Shape:White To Off-White SolidMolecular weight:588.562-[[2-Oxo-3-[4-(3-oxo-4-morpholinyl)phenyl]-5-oxazolidinyl]methyl]-1H-isoindole-1,3(2H)-dione
CAS:Please enquire for more information about 2-[[2-Oxo-3-[4-(3-oxo-4-morpholinyl)phenyl]-5-oxazolidinyl]methyl]-1H-isoindole-1,3(2H)-dione including the price, delivery time and more detailed product information at the technical inquiry form on this pageFormula:C22H19N3O6Purity:Min. 95%Molecular weight:421.4 g/molCiprofloxacin-d8, Hydrochloride
CAS:Formula:C17H11ClD8FN3O3Purity:98%Color and Shape:SolidMolecular weight:375.8518Naphazoline hydrochloride
CAS:Formula:C14H14N2HClPurity:(HPLC) ≥ 98.0%Color and Shape:White to off-white crystalline powderMolecular weight:246.741-Benzhydryl-4-nitrosopiperazine (1-Benzhydryl-4-nitrosopiperazine)
CAS:Compounds containing a pyrimidine ring, whether or not hydrogenated, or piperazine ring in the structure, nesoiFormula:C17H19N3OColor and Shape:Off-White SolidMolecular weight:281.15281Dalasetron (Mesylate hydrate)
CAS:Formula:C20H26N2O7SPurity:%Color and Shape:SolidMolecular weight:438.49463999999984-Hydoxymethyl-5-methylimidazol
CAS:Please enquire for more information about 4-Hydoxymethyl-5-methylimidazol including the price, delivery time and more detailed product information at the technical inquiry form on this pageFormula:C5H8N2OPurity:Min. 95%Molecular weight:112.13 g/molCeliprolol EP Impurity A
CAS:Formula:C15H24N2O3Color and Shape:Pale Yellow SolidMolecular weight:280.37Tedizolid Impurity 17
CAS:Formula:C6H4BrN5Color and Shape:White To Off-White SolidMolecular weight:226.04Amikacin Impurity 6
CAS:Formula:C6H13NO4Color and Shape:White To Off-White SolidMolecular weight:163.17Verapamil EP Impurity I HCl (Verapamil USP Related Compound B)
CAS:Formula:C26H36N2O4·HClColor and Shape:White To Off-White SolidMolecular weight:440.58 36.46Cisatracurium Besilate EP Impurity D Besylate
CAS:Formula:C25H34NO6·C6H5O3SColor and Shape:White To Off-White SolidMolecular weight:444.55 157.16Rasagiline Dimer Impurity (Mixture of Diastereomers)
Formula:C24H24N2Color and Shape:Colorless Sticky OilMolecular weight:340.47Cefprozil EP Impurity M
CAS:Formula:C21H23N3O7SColor and Shape:Off-White SolidMolecular weight:461.49Oxybutynin Adduct Impurity HCl
Formula:C22H32ClNO3·HClColor and Shape:Off-White SolidMolecular weight:393.96 36.46Azithromycin EP Impurity A (Azathramycin, Desmethyl Azithromycin)
CAS:Formula:C37H70N2O12Color and Shape:White To Off-White SolidMolecular weight:734.97Biperiden EP Impurity A
Formula:C21H29NOColor and Shape:White To Off-White SolidMolecular weight:311.47Ketorolac tromethamine - Incorrect Polymorph
CAS:Ketorolac tromethamine is a nonsteroidal anti-inflammatory drug (NSAID) that inhibits prostaglandin synthesis. It has been shown to be effective in the treatment of pain and inflammation, but is often associated with gastrointestinal ulceration. Ketorolac tromethamine is a crystalline form of ketorolac that is made by the pharmaceutical company Roche. Crystals are obtained by spray-drying the solution obtained from dissolving ketorolac in aqueous solutions of cellulose and fluorescein angiography. The crystals are stable over long periods of time, but may not dissolve completely when taken orally. Ketorolac tromethamine has been found to be biocompatible when used as an implant for the treatment of chronic pain.Formula:C15H13NO3·C4H11NO3Purity:Min. 95%Molecular weight:376.4 g/molDi-N-Nitroso Cyclophosphamide EP Impurity E (Di-N-Nitroso Cyclophosphamide USP Related Compound D)
Formula:C7H16ClN4O6PMolecular weight:318.652H-2-Ethyl Candesartan Cilexetil
CAS:Controlled ProductImpurity Candesartan Cilexetil EP Impurity F Applications 2H-2-Ethyl Candesartan Cilexetil (Candesartan Cilexetil EP Impurity F) is a Candesartan Cilexetil impurity. References Cagigal, E., et al.: J. Chromatogr., 26, 477 (2001), Bakshi, M., et al.: J. Pharm. Biomed. Anal., 28, 1011 (2002),Formula:C35H38N6O6Color and Shape:NeatMolecular weight:638.71Algestone Acetophenide
CAS:Controlled ProductApplications Algestone Acetophenide is a progestational steroid that has been shown to increase the proteins in milk and serum in goats and decrease the weight gain of kids. Algestone Acetophenide is used as an injectable steroid contraceptive in Chile and Mexico. References Abdel, K., et. al.: J. Drug Res., 7, 79 (1975); Thomas, D.B., et. al.: AM. J. Epidemiol., 130, 237 (1989)Formula:C29H36O4Color and Shape:White To Off-WhiteMolecular weight:448.59(R)-(-)-2-Fluoro-α-methyl-4-biphenylacetic acid
CAS:Formula:C15H13FO2Purity:≥ 95%Color and Shape:White to off-white crystalline powder or solidMolecular weight:244.262-(tert-butoxycarbonyl)-5,7-dichloro-1,2,3,4-tetrahydroisoquinoline-6-carboxylic acid
CAS:Formula:C15H17Cl2NO4Purity:97%Color and Shape:SolidMolecular weight:346.2058Naloxone methiodide
CAS:Formula:C20H24INO4Purity:≥ 97.5%Color and Shape:White to off-white powder or solidMolecular weight:469.31Noscapine Impurity 8
CAS:Formula:C10H12O5Color and Shape:White To Off-White SolidMolecular weight:212.20Lacosamide EP Impurity H (SS-Isomer)
CAS:Formula:C17H25N3O5Color and Shape:White To Off-White SolidMolecular weight:351.40Carboprost tromethamine
CAS:Formula:C25H45NO7Purity:95%Color and Shape:SolidMolecular weight:471.6273Iloperidone Impurity 21
Formula:C12H14F2N2OColor and Shape:White To Off-White SolidMolecular weight:240.25rac Hydroxy Tizanidine Hydrochloride (Mixture of Tautomers)
CAS:Stability Not stable in solution Applications A metabolite of Tizanidine (M-2) (T449500). References Koch, P., et al.: Xenobiotica, 19, 1255 (1989),Formula:C9H8ClN5OS·ClHColor and Shape:NeatMolecular weight:306.17Ivermectin Impurity K
CAS:Ivermectin Impurity K is an impurity in Ivermectin, a drug product. It is a natural substance that is synthesized by the metabolism of avermectins, or it can be obtained from fermentation. It has been shown to have anti-inflammatory properties in mice and rats. Ivermectin Impurity K is a metabolite of Ivermectin, which is an antiparasitic drug used to treat parasitic infections of the skin and lungs caused by roundworms and other parasites. This impurity has been shown to have anti-inflammatory properties in mice and rats.Formula:C48H76O14Purity:Min. 95%Molecular weight:877.11 g/molRifaximin EP Impurity C (Rifamycin SV)
CAS:Formula:C37H47NO12Color and Shape:Orange SolidMolecular weight:697.78Metoclopramide N-Oxide
CAS:Impurity Metoclopramide EP Impurity G Stability Temperature Sensitive Applications Metoclopramide N-Oxide (Metoclopramide EP Impurity G) is a new metabolite of Metoclopramide (M338685). References Maurich, V, et al.: Eur. J. Med. Chem., 30, 757 (1995),Formula:C14H22ClN3O3Color and Shape:Off White To BeigeMolecular weight:315.80Benz[A]anthracene-7-acetic acid methyl ester
CAS:Please enquire for more information about Benz[A]anthracene-7-acetic acid methyl ester including the price, delivery time and more detailed product information at the technical inquiry form on this pageFormula:C21H16O2Purity:Min. 95%Molecular weight:300.3 g/mol(2β,3β,5β,22R)-2,3,14,20,22,25-Hexahydroxycholest-7-en-6-one
CAS:Formula:C27H44O7Purity:95%Color and Shape:SolidMolecular weight:480.6341Ezetimibe Impurity 21
Formula:C45H58F2N2O5Si2Color and Shape:White To Off-White SolidMolecular weight:801.13Cyproheptadine Impurity 1
CAS:Formula:C21H21NOColor and Shape:Pale Yellow SolidMolecular weight:303.41Cytisine
CAS:Formula:C11H14N2OPurity:≥ 98.0%Color and Shape:White to yellow powderMolecular weight:190.24Epigallocatechin
CAS:Formula:C15H14O7Purity:≥ 95.0%Color and Shape:White to off-white powderMolecular weight:306.27Semaglutide Impurity 61 Tetratrifluoroacetate (Endo 10 Gly)
Formula:C189H294N46O60·4C2HF3O2Molecular weight:4170.69 4*114.02Penehyclidine Impurity 18
CAS:Formula:C21H25NO2Color and Shape:White To Off-White SolidMolecular weight:323.44Salmeterol EP Impurity G
CAS:Formula:C50H72N2O7Color and Shape:White To Off-White SolidMolecular weight:813.131-(4-AMINO-3-CHLORO-5-TRIFLUOROMETHYL-PHENYL)-2-(1,1-DIMETHYL-PROPYLAMINO)-ETHANOL HYDROCHLORIDE
CAS:Formula:C14H21Cl2F3N2OPurity:95%Color and Shape:SolidMolecular weight:361.2305Cyproterone Acetate EP Impurity G
CAS:Formula:C24H31ClO5Color and Shape:White To Off-White SolidMolecular weight:434.96Propofol
CAS:Formula:C12H18OPurity:(GC) ≥ 96.0%Color and Shape:Clear, colourless to amber liquidMolecular weight:178.28Terbutaline Impurity 21 HBr
CAS:Formula:C12H19NO2·HBrColor and Shape:White To Off-White SolidMolecular weight:209.29 80.91Triamcinolone Acetonide-d7 (major)
CAS:Controlled ProductApplications Triamcinolone Acetonide-d6 is the labeled analogue of Triamcinolone Acetonide (T767165), a glucocorticoid, antiasthmatic (inhalant); antiallergic (nasal). References Florey, K., et al.: Anal. Profiles Drug Subs., 1, 397 (1972); Bernstein, I.L., et al.: Chest, 81, 20 (1982)Formula:C24H24D7FO6Color and Shape:Off-White To BeigeMolecular weight:441.54088Glipizide EP Impurity C
CAS:Formula:C18H27N3O5SColor and Shape:White To Off-White SolidMolecular weight:397.49Roxithromycin impurity H
CAS:Roxithromycin impurity H is an analytical standard for Roxithromycin. It is a metabolite that has been identified in human urine and bile samples as well as in rat plasma following oral administration of Roxithromycin. It is also a byproduct of the synthesis of Roxithromycin, which can be eliminated through purification steps. This compound has not yet been evaluated in humans or animals, but it may cause adverse effects such as gastrointestinal disturbances, headache, or hepatotoxicity.Formula:C41H76N2O14Purity:Min. 95%Molecular weight:821.05 g/mol1-(4-Chlorophenyl)biguanide hydrochloride
CAS:Formula:C8H11Cl2N5Purity:95%Color and Shape:SolidMolecular weight:248.1124Salbutamol EP Impurity J HCl (Albuterol USP Related Compound B HCl)
CAS:Formula:C13H19NO3·HClColor and Shape:White To Off-White SolidMolecular weight:237.30 36.464-Quinazolinamine, N-(3-ethynylphenyl)-6,7-bis(2-methoxyethoxy)-, hydrochloride (1:1)
CAS:Formula:C22H24ClN3O4Purity:98%Color and Shape:SolidMolecular weight:429.89666000000005Amiodarone hydrochloride
CAS:Formula:C25H29I2NO3·HClPurity:≥ 98.0%Color and Shape:White to off-white crystalline powderMolecular weight:681.77M,M-Quaterphenyl
CAS:M,M-Quaterphenyl is a low energy fluorescent molecule that emits light in the near ultraviolet region of the electromagnetic spectrum. It is chemically stable and has a high quantum yield. The structure of M,M-Quaterphenyl consists of a skeleton made up of alternating carbon and chlorine atoms. This molecule can be synthesized from the reaction of biphenyl with hydrochloric acid and sodium carbonate.Formula:C24H18Purity:Min. 95%Molecular weight:306.4 g/molFolic acid
CAS:Formula:C19H19N7O6Purity:97.0 - 102.0 %Color and Shape:Yellow to orange powderMolecular weight:441.41Ibufenac Acyl-Beta-D-Glucuronide
CAS:Controlled ProductApplications Ibufenac Glucuronide is an acyl glucuronide (AG) form of Ibufenac (I130000) which is used as an analgesic. References Adams, S.S., et al.: Nature, 200, 271 (1962), Adams, S.S., et al.: J. Pharm. Pharmacol., 20, 305 (1968),Formula:C18H24O8Color and Shape:NeatMolecular weight:368.38Gadobutrol EP Impurity C (Gadoteridol USP Related Compound B, Gd-DO3A)
CAS:Formula:C14H23GdN4O6Molecular weight:500.61(E)-5-(4-Methoxystyryl)benzene-1,3-diol
CAS:Formula:C15H14O3Purity:98%Color and Shape:SolidMolecular weight:242.2699Ref: 4Z-R-4012
Discontinued product2,4,5-Trimethoxybenzoic Acid
CAS:Formula:C10H12O5Purity:98%Color and Shape:SolidMolecular weight:212.1993Des-acetyl apremilast
CAS:Please enquire for more information about Des-acetyl apremilast including the price, delivery time and more detailed product information at the technical inquiry form on this pageFormula:C20H22N2O6SPurity:Min. 95%Molecular weight:418.50 g/molRef: IN-DA0037N3
1g25.00€5g25.00€10g33.00€1kg516.00€25g48.00€50g61.00€100g91.00€250g166.00€500g214.00€4-Aminoantipyrine
CAS:Formula:C11H13N3OPurity:98%Color and Shape:SolidMolecular weight:203.24041999999997Ethanaminium,N-(fluoromethyl)-2-hydroxy-N,N-dimethyl-, chloride (9CI)
CAS:Formula:C5H13ClFNOPurity:98%Color and Shape:SolidMolecular weight:157.61422320000003Theophylline Impurity 22
CAS:Formula:C12H16N4O3Color and Shape:White To Off-White SolidMolecular weight:264.29Octanedioic acid, 1,8-diethyl ester
CAS:Formula:C12H22O4Purity:95%Color and Shape:LiquidMolecular weight:230.3007(11α,13E,15S)-11,15-Dihydroxy-9-oxoprost-13-en-1-oic acid
CAS:Formula:C20H34O5Purity:98%Color and Shape:SolidMolecular weight:354.481Disulfide,bis(2,4-dimethylphenyl)
CAS:Formula:C16H18S2Purity:97%Color and Shape:LiquidMolecular weight:274.4441N-Nitroso Levofloxacin EP Impurity B (N-Nitroso Levofloxacin USP Related Compound A, N-Nitroso-N-Desmethyl Levofloxacin)
CAS:Formula:C17H17FN4O5Molecular weight:376.34(3,4-Dimethoxyphenyl) Acetic Acid
CAS:Formula:C10H12O4Purity:97%Color and Shape:SolidMolecular weight:196.1999(4-Carboxy-3-ethoxy)phenyl acetic acid
CAS:4-Carboxy-3-ethoxy)phenyl acetic acid (CPAE) is a fluorescent compound that has been shown to have antidiabetic and luminescence properties. It absorbs light at wavelengths of 340, 405, and 455 nm and emits light at 525 nm. It also absorbs UV light at 310 nm and emits fluorescence at 495 nm. CPAE is formed by the condensation of two molecules of 4-carboxybenzaldehyde with one molecule of ethyl 3-ethoxypropanoate in the presence of a base. The crystals are monoclinic, with space group P2/c and lattice constants a = 12.872(1) Å, b = 7.319(1) Å, c = 17.814(2) Å, β = 98.664(9)°, Z = 2. The molecular weight is 182.24 g/mol and its molecularFormula:C11H12O5Purity:Min. 95%Molecular weight:224.21 g/molAcetamide, N-[(1S)-1-(4-bromophenyl)ethyl]-2,2,2-trifluoro-
CAS:Formula:C10H9BrF3NOPurity:97%Molecular weight:296.0838Macitentan Impurity 14
CAS:Formula:C12H12BrN3O2Color and Shape:Pale Yellow SolidMolecular weight:310.15Methyl 4-amino-5-chloro-2,3-dihydrobenzofuran-7-carboxylate
CAS:Formula:C10H10ClNO3Purity:97%Color and Shape:SolidMolecular weight:227.6443Aztreonam Impurity B TFA salt
CAS:Aztreonam Impurity B (AZTB) is a synthetic, non-natural impurity that has been identified in Aztreonam. The CAS number for AZTB is 102586-36-7. Aztreonam Impurity B TFA salt is an analytical standard with a purity of 99.9%. This product may be used as a drug product, research and development, or in the synthesis of other drugs. HPLC analysis of AZTB reveals an Rf value of 0.3 when eluted from a C18 column with water/acetonitrile gradient at 1 mL/minutes.Formula:C13H19N5O6SPurity:Min. 95%Molecular weight:373.39 g/molCanagliflozin Impurity 18 (Mixture of Diastereomers)
CAS:Formula:C24H25FO6SColor and Shape:White To Off-White SolidMolecular weight:460.52Albendazole EP Impurity C-d7 (Albendazole Sulfone-d7)
CAS:Formula:C12H8D7N3O4SColor and Shape:White To Off-White SolidMolecular weight:304.37Atorvastatin Cyclic Sodium Salt (Chlorophenyl) Impurity
Formula:C33H34ClN2O7·NaMolecular weight:606.09 22.998-Azaspiro[4.5]decane-7,9-dione, 8-[2-[4-(2-methoxyphenyl)-1-piperazinyl]ethyl]-, hydrochloride (1:2)
CAS:Formula:C22H33Cl2N3O3Purity:97%Color and Shape:SolidMolecular weight:458.4217Azilsartan Impurity 38
CAS:Formula:C24H21N3O4Color and Shape:White To Off-White SolidMolecular weight:415.45Ref: 4Z-E-26104
Discontinued product(-)-OSU-d7
CAS:Please enquire for more information about (-)-OSU-d7 including the price, delivery time and more detailed product information at the technical inquiry form on this pageFormula:C15H23NO2SPurity:Min. 95%Molecular weight:288.5 g/molCeftizoxime
CAS:Controlled ProductStability Hygroscopic Applications Ceftizoxime is a cephalosporin based, potent antibacterial agent. References Zhang, J. et al.: Chem. Res. Toxicol., 26, 1168 (2013); Ekinci, D. et al.: J. Enz. Inhib. Med. Chem., 28, 824 (2013);Formula:C13H13N5O5S2Color and Shape:White To Light YellowMolecular weight:383.40Argatroban Impurity 51
CAS:Formula:C23H32N6O5SColor and Shape:White To Off-White SolidMolecular weight:504.61Neostigmine EP Impurity B
CAS:Formula:C8H11NOColor and Shape:Pale Purple SolidMolecular weight:137.18Tri-o-(tert-butyldimethylsilyl) ractopamine
CAS:Tri-o-(tert-butyldimethylsilyl) ractopamine is a compound that has been studied for its potential biological effects. It has been shown to have antioxidant properties, as it reduces the levels of malondialdehyde and IL-17A, which are markers of oxidative stress and inflammation. The compound's coordination geometry allows it to interact with fatty acid hydroperoxides and other complex molecules, potentially influencing their biological activity. Additionally, tri-o-(tert-butyldimethylsilyl) ractopamine can act as a cation, neutralizing reactive species that contribute to lipid peroxidation. Studies have also found impurities in this compound, which may affect its overall effectiveness. Further research is needed to fully understand the chemokine and human serum interactions of tri-o-(tert-butyldimethylsilyl) ractopamine.Formula:C36H65NO3Si3Purity:Min. 95%Molecular weight:644.2 g/mol
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