
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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Octreotide Impurity 11 Ditrifluoroacetate
CAS:Formula:C45H57N9O9S2·2C2HF3O2Molecular weight:932.14 2*114.02Sulfamethizole
CAS:Formula:C9H10N4O2S2Purity:(HPLC) ≥ 98.0%Color and Shape:White to off-white powderMolecular weight:270.33Macitentan Impurity 13
CAS:Formula:C10H8BrN3OColor and Shape:White To Off-White SolidMolecular weight:266.10rac-Selegiline EP Impurity D-d5 HCl (rac-N-Desmethyl Selegiline-d5 HCl)
CAS:Formula:C12H10D5N·HClColor and Shape:White To Off-White SolidMolecular weight:178.29 36.46Fluticasone furoate impurity L
Fluticasone Furoate Impurity L is an impurity of Fluticasone Furoate, a drug product. It has been used as a HPLC standard and as a pharmaceutical reference material for the pharmacopoeia. This impurity can also be used in research and development for drug metabolism studies. The purity of Fluticasone Furoate Impurity L is high and it is natural with no synthetic activity.Purity:Min. 95%Ritonavir EP Impurity T
CAS:Formula:C46H66N8O5S2Color and Shape:Off-White SolidMolecular weight:875.22Nandrolone 17beta-undecanoate
CAS:Controlled ProductApplications Anabolic steroid. References Musshoff, F., et al.: J. For. Sci., 42, 1119 (1997), Pagonis, T., et al.: Clin. Toxicol., 46, 57 (2008), Sartorio, A., et al.: Eur. J. Endocrinol., 150, 511 (2004),Formula:C29H46O3Color and Shape:White To Off-WhiteMolecular weight:442.67(2E)-2-Cyano-3-(3,4-Dihydroxyphenyl)-N-[(1S)-1-Phenylethyl]-2-Propenamide
CAS:Formula:C18H16N2O3Purity:97%Color and Shape:SolidMolecular weight:308.33124000000004Niclosamide Impurity 1
CAS:Formula:C13H9ClN2O4Color and Shape:Brownish Yellow SolidMolecular weight:292.68Pazufloxacin Impurity 10 (Mixture of Diastereomers)
Formula:C16H14FNO7Color and Shape:White To Off-White SolidMolecular weight:351.29Nevirapine Impurity 1
Formula:C18H18N4OColor and Shape:White To Off-White SolidMolecular weight:306.37Demeclocycline hydrochloride
CAS:Formula:C21H21ClN2O8·HClPurity:90.0 - 102.0 % (dried basis)Color and Shape:Yellow powderMolecular weight:501.327-Trifluoromethylisatin
CAS:Formula:C9H4F3NO2Purity:97%Color and Shape:SolidMolecular weight:215.1288Topiramate EP Impurity D
CAS:Formula:C25H39NO15SColor and Shape:White To Off-White SolidMolecular weight:625.64Piperidine, 3-[(3-methoxyphenyl)methyl]-, hydrochloride (1:1)
CAS:Formula:C13H20ClNOPurity:97%Molecular weight:241.757Trimebutine EP Impurity A HCl
CAS:Formula:C12H19NO·HClColor and Shape:White To Off-White SolidMolecular weight:193.29 36.46S-3-(4-acetylamino-phenoxy)-2-hydroxy-2-methyl-N-(4-nitro-3-trifluoromethyl-phenyl)-propionamide
CAS:Formula:C19H18F3N3O6Purity:98%Color and Shape:SolidMolecular weight:441.3579D-Leucine, N-[(1,1-dimethylethoxy)carbonyl]-
CAS:Formula:C11H21NO4Purity:95%Color and Shape:SolidMolecular weight:231.2887Carbamimidothioic acid, 2-[4-[(4-nitrophenyl)methoxy]phenyl]ethyl ester, methanesulfonate (1:1)
CAS:Formula:C17H21N3O6S2Purity:98%Color and Shape:SolidMolecular weight:427.4951Lisinopril diketopipirazine
CAS:Lisinopril diketopipirazine is an analytical drug product. The CAS number for this product is 219677-82-4. This product requires a custom synthesis and impurity standard. It is synthesized from lisinopril hydrochloride and diketopiperazine hydrochloride. Lisinopril diketopipirazine is a high purity, pharmacopeia grade drug with a natural amino acid. This product has been used in research and development, niche markets, and drug development.Formula:C21H29N3O4Purity:90%MinColor and Shape:White To Off-White SolidMolecular weight:387.47 g/molFingolimod EP Impurity I
CAS:Formula:C21H35NO3Color and Shape:White To Off-White SolidMolecular weight:349.523β,5-Dihydroxy-15β,16β-methylene-5β-androst-6-en-17-one
CAS:Controlled ProductFormula:C20H28O3Color and Shape:NeatMolecular weight:316.43Diclofenac potassium salt
CAS:Formula:C14H10Cl2KNO2Purity:≤ 0.1%Color and Shape:White to light yellow crystalline powderMolecular weight:334.248-Desacetyl-8-carboxy Daunorubicin Hydrochloride Hydrate
CAS:Stability Hygroscopic Applications Doxorubicin analog. Antitumor drug. References Meriwether, W.D., et al.: Cancer Res., 32, 1137 (1972), Tong, G., et al.: J. Med. Chem., 19, 395 (1976),Formula:C26H27NO11•HCl•xH2OColor and Shape:NeatMolecular weight:529.50 +(36.46) + x(18.02)Ornidazole Impurity 11
CAS:Formula:C6H6ClN3O3Color and Shape:Pale Yellow SolidMolecular weight:203.58Mefruside-d3
CAS:Controlled ProductStability Hygroscopic Applications Isotope labelled analogue of Mefruside (M205150), a diuretic used for the treatment of edema and hypertension. References Johansen, A., et al.: Euro. J. Epidemiol., 27, 63 (2012); Hasegawa, Y., et al.: Blood. Press. Supple., 1, 10 (2010);Formula:C13H16D3ClN2O5S2Color and Shape:White To Light BeigeMolecular weight:385.903-Oxo-7Alpha,12Alpha-hydroxy-5Beta-cholanoic Acid
CAS:Controlled ProductStability Hygroscopic Applications 3-Oxo-7α,12α-hydroxy-5β-cholanoic Acid is a keto bile acid derivative. References Bortolini, O. et al.: Tetra., 62, 4482 (2006); Bortolini, O. et al.: J. Org. Chem., 67, 5802 (2002); Iguchi, Y. et al.: Biol. Pharm. Bull., 34, 1 (2011);Formula:C23H36O6Color and Shape:Off-White To Light BeigeMolecular weight:408.53Fluocortolone Pivalate EP Impurity C
CAS:Formula:C27H35FO5Color and Shape:White To Off-White SolidMolecular weight:458.57(S)-Rabeprazole Sodium
CAS:Controlled ProductStability Hygroscopic Applications A partially reversible gastric proton pump inhibitor. References Moda, T., et al.: Lett. Drug Des. Discov., 4, 502 (2007), Belaz, K., et al.: J. Pharm. Biomed. Anal., 47, 81 (2008),Formula:C18H20N3NaO3SColor and Shape:NeatMolecular weight:381.423-Chloro-2-hydroxyimipramine
CAS:Please enquire for more information about 3-Chloro-2-hydroxyimipramine including the price, delivery time and more detailed product information at the technical inquiry form on this pageFormula:C19H23ClN2OPurity:Min. 95%Molecular weight:330.8 g/mol(2S, 4’R, 8’S)-α-Tocopherol
CAS:Please enquire for more information about (2S, 4’R, 8’S)-α-Tocopherol including the price, delivery time and more detailed product information at the technical inquiry form on this pageFormula:C29H50O2Purity:Min. 95%Molecular weight:430.7 g/molBenzotriazole-d4
CAS:Controlled ProductApplications Labelled Benzotriazole. BT is an anticorrosive agent well known for its use in aircraft deicing and antifreeze fluids but also used in dishwasher detergents. Benzotriazole is antiestrogenic in vitro but not in vivo.Isotopic purity: 97% d4, 3% d3. References Rollinson, G., et al.: Biotechnol. Lett., 8, 303 (1986), Cancilla, D., et al.: Environ. Toxicol. Chem., 16, 430 (1997), Beresford, N., et al.: Toxicol. Appl. Pharmacol., 162, 22 (2000), Cornell, J., et al.: Environ. Toxicol. Chem., 19, 1465 (2000), Giger, W., et al.: Environ. Sci. Technol., 40, 7186 (2006),Formula:C6D4HN3Color and Shape:White To BrownMolecular weight:123.15N-TERT-BUTYL-α-PHENYLNITRONE
CAS:Formula:C11H17NOPurity:97%Color and Shape:SolidMolecular weight:179.25877999999997N-Nitroso Moxifloxacin EP Impurity G-d4 (N-Nitroso ent-Moxifloxacin-d4)
Formula:C21H19D4FN4O5Molecular weight:434.46Nicardipine EP Impurity B DiHCl (Nicardipine USP Related Compound D)
CAS:Formula:C35H40N4O6·2HClColor and Shape:Yellow SolidMolecular weight:612.73 2*36.46Lamotrigine EP Impurity B
CAS:Formula:C9H7Cl2N5Color and Shape:Pale Yellow SolidMolecular weight:256.09Carbamazepine-d8 (Major)
CAS:Controlled ProductApplications Labelled Carbamazepine (C175840). Used in treatment of pain associated with trigeminal neuralgia. Anticonvulsant. References Stenger, E.G., et al.: Med. Exp., 11, 191 (1964), Pynnonen, S., et al.: Ther. Drug Monit., 1, 409 (1979), Sidebottom, A., et al.: J. Clin. Pharm. Ther., 20, 31 (1995)Formula:C15H4D8N2OColor and Shape:White To Light YellowMolecular weight:244.32Bis-[[2-aminoethyl]thio]methane dihydrochloride
CAS:Bis-[[2-aminoethyl]thio]methane dihydrochloride is a research and development metabolite that can be custom synthesized. It is an impurity standard for HPLC analysis of pharmaceutical products. The CAS number for this compound is 22965-82-8. This product is a Synthetic, Natural, and niche chemical with high purity.Formula:C5H14N2S2•(HCl)2Purity:Min. 95%Molecular weight:239.23 g/molEthanol, 2-[(2,6-dichlorophenyl)Methoxy]-
CAS:Formula:C9H10Cl2O2Purity:98%Color and Shape:LiquidMolecular weight:221.0805Dienogest EP Impurity J
CAS:Formula:C21H27NO2Color and Shape:White To Off-White SolidMolecular weight:325.45Butanedioic acid,mono[(2R)-3,4-dihydro-2,5,7,8-tetramethyl-2-[(4R,8R)-4,8,12-trimethyltridecyl]-2H-1-benzopyran-6-yl] ester
CAS:Formula:C33H54O5Purity:98%Color and Shape:SolidMolecular weight:530.7789Ezetimibe Impurity 93
CAS:Formula:C24H19F2NO3Color and Shape:White To Off-White SolidMolecular weight:407.42Oxazolam
CAS:Controlled ProductApplications A psychotropic agent with anxiolytic, anticonvulsant, sedative and skeletal muscle relaxant properties. It is a precursor to the active substance Desmethyldiazepam (D291595). References Ochs, H.R. et al.: J. Clin. Pharmacol., 24, 446 (1984); Takagi, H. et al.: Nip. Yakur. Zas., 66, 134 (1970);Formula:C18H17ClN2O2Color and Shape:NeatMolecular weight:328.79Ritodrine Impurity 2 (Tyramine)
CAS:Formula:C8H11NOColor and Shape:Pale Brown SolidMolecular weight:137.18Clobetasol Propionate EP Impurity B
CAS:Formula:C22H26ClFO3Color and Shape:Off-White SolidMolecular weight:392.90Prasugrel α-Hydroxy Impurity
CAS:Formula:C11H11FO2Color and Shape:Pale Yellow LiquidMolecular weight:194.21Mesalazine (Mesalamine) EP Impurity J
CAS:Formula:C7H8N2O3Color and Shape:Gray SolidMolecular weight:168.15Cyclohexanecarboxamide, N-[2-[4-(2-methoxyphenyl)-1-piperazinyl]ethyl]-N-2-pyridinyl-
CAS:Formula:C25H34N4O2Purity:99%Color and Shape:SolidMolecular weight:422.5631Triethylenephosphoramide
CAS:Stability Hygroscopic, Moisture Sensitive Applications Used as insect chemosterilant; in dyeing. Antineoplastic. 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 Gaines, et al.: Toxicol. Appl. Pharmacol., 14, 515 (1969), Huitema, A., et al.: Br. J. Clin. Pharmacol., 51, 61 (2001), Jinno, H., et al.: Drug Metab. Dispos., 31, 398 (2003),Formula:C6H12N3OPColor and Shape:Yellowish Solid With A Low Melting PointMolecular weight:173.15(+)-Norpseudoephedrine Hydrochloride (Cathine Hydrochloride)
CAS:Controlled ProductFormula:C9H13NO·ClH1-Boc-5-Methyl-1,4-diazepane
CAS:Purity:95.0%Color and Shape:LiquidMolecular weight:214.3090057373047Ref: 10-F092852
1gTo inquire5gTo inquire10gTo inquire10mgTo inquire100mgTo inquire250mgTo inquire500mgTo inquireN-(4-Chlorobenzyl)-N-(pyridin-2-yl)nitrosoamine Solution (1 mL ) (N-(4-Chlorobenzyl)-N-(pyridin-2-yl)nitrosoamine)
Compounds containing an unfused pyridine ring in the structure, nesoiFormula:C12H10ClN3OColor and Shape:Colorless LiquidMolecular weight:247.05124Ilaprazole Impurity 22
Formula:C18H16N4OSColor and Shape:White To Off-White SolidMolecular weight:336.42Atomoxetine Impurity 9 HCl
CAS:Formula:C11H16ClN·HClColor and Shape:White To Off-White SolidMolecular weight:197.71 36.46β-D-Glucopyranosiduronic acid, 4-[(2S,3R)-1-(4-fluorophenyl)-3-[(3S)-3-(4-fluorophenyl)-3-hydroxypropyl]-4-oxo-2-azetidinyl]phenyl
CAS:Formula:C30H29F2NO9Purity:98%Color and Shape:SolidMolecular weight:585.5493663999999N-[1-[3-(4-Ethoxyphenyl)-3,4-dihydro-4-oxopyrido[2,3-d]pyrimidin-2-yl]ethyl]-4-fluoro-N-(3-pyridinylmethyl)-3-(trifluoromethyl)-benz eneacetamide
CAS:N-[1-[3-(4-Ethoxyphenyl)-3,4-dihydro-4-oxopyrido[2,3-d]pyrimidin-2-yl]ethyl]-4-fluoro-N-(3-pyridinylmethyl)-3-(trifluoromethyl)-benz eneacetamide is a drug product that is used in the development of new drugs. It is an analytical standard for HPLC and was created as a natural metabolite from the antibiotic Cefazolin. N-[1-[3-(4-Ethoxyphenyl)-3,4-dihydro-4-oxopyrido[2,3-d]pyrimidin-2-yl]ethyl]-4 -fluoro -N-(3 -pyridinylmethyl) - 3 (trifluoromethyl) - benzeneacetic acid has been shown to inhibitFormula:C32H27F4N5O3Purity:Min. 95%Molecular weight:605.6 g/molCyclizine-d4 Hydrochloride
CAS:Controlled ProductApplications Labelled Cyclizine. It is a piperazine derivative with anti-emetic activity that is useful in the prevention and treatment of nausea and vomiting associated with motion sickness. Antiemetic. 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 Kuntzman, R., et al.: J. Pharmacol. Exp. Ther., 158, 332 (1967), Walker, R., et al.: Eur. J. Pharm. Sci., 4, 301 (1996), Dumasia, M., et al.: Xenobiotica, 32, 795 (2002),Formula:C18H19D4ClN2Color and Shape:NeatMolecular weight:306.87Efinaconazole Impurity 38
CAS:Formula:C18H22F2N4OColor and Shape:White To Off-White SolidMolecular weight:348.40Etoposide EP Impurity E (Podophyllotoxin EP Impurity B, Teniposide USP Related Compound A, 4'-Demethyl epi-Podophyllotoxin (DMEP))
CAS:Formula:C21H20O8Color and Shape:White To Off-White SolidMolecular weight:400.382-Ethoxy-4-[2-[[(1R)-3-methyl-1-[2-(1-piperidinyl)phenyl]butyl]amino]-2-oxoethyl]benzoic acid ethyl ester
CAS:2-Ethoxy-4-[2-[[(1R)-3-methyl-1-[2-(1-piperidinyl)phenyl]butyl]amino]-2-oxoethyl]benzoic acid ethyl ester is a drug product that has been custom synthesized for use in research and development. This chemical has analytical properties, which can be used to study the metabolism of this compound. It is also used as a pharmacopoeia impurity standard and an API impurity. 2-Ethoxy-4-[2-[[(1R)-3-methyl-1-[2-(1-piperidinyl)phenyl]butyl]amino]-2-oxoethyl]benzoic acid ethyl ester is metabolized in vivo to form metabolites with different spectra of activity. These metabolites are used as analytical standards for HPLC analysis.Formula:C29H40N2O4Purity:Min. 95%Molecular weight:480.64 g/molRabeprazole EP Impurity D
CAS:Formula:C18H21N3O4SColor and Shape:White To Off-White SolidMolecular weight:375.44Chlorpromazine EP Impurity F HCl
CAS:Formula:C17H19ClN2S·HClColor and Shape:Off-White SolidMolecular weight:318.87 36.46Hydrazinium, 2-(2-carboxyethyl)-1,1,1-trimethyl-, inner salt
CAS:Formula:C6H14N2O2Purity:98%Color and Shape:SolidMolecular weight:146.18755999999996Dapagliflozin Impurity 2
CAS:Formula:C15H14BrClOColor and Shape:White To Off-White SolidMolecular weight:325.63Imidafenacin Impurity 12
Formula:C16H17NO3Color and Shape:White To Off-White SolidMolecular weight:271.32Ertapenem sodium salt
CAS:Formula:C22H24N3NaO7SPurity:≥ 90.0% (dried basis)Color and Shape:White to off-white powderMolecular weight:497.5Benzalkonium Chloride Impurity 2-d5
CAS:Formula:C23H35D5NO2·ClColor and Shape:White To Off-White SolidMolecular weight:367.61 35.45Semaglutide Impurity 95 Trifluororacetate(Des Gly 29)
Formula:C185H288N44O58·C2HF3O2Molecular weight:4056.59 114.02Medetomidine Impurity 18
CAS:Formula:C15H20N2Color and Shape:White To Off-White SolidMolecular weight:228.34Medroxyprogesterone Acetate Impurity 1
CAS:Formula:C24H34O5Color and Shape:Off-White SolidMolecular weight:402.53N-[2-(4-Morpholinyl)ethyl]-N'-[4-[3-[6-(4-morpholinyl)-2-pyridinyl]-1-oxo-2-propen-1-yl]phenyl]urea
CAS:Formula:C25H31N5O4Purity:%Color and Shape:SolidMolecular weight:465.5447