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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Ranolazine Impurity 3
Formula:C34H52N6O5Color and Shape:White To Off-White SolidMolecular weight:624.83Sofosbuvir Impurity 59
CAS:Formula:C31H26FN3O7Color and Shape:White To Off-White SolidMolecular weight:571.56Benzenecarboximidamide, 4,4'-[1,5-pentanediylbis(oxy)]bis-
CAS:Formula:C19H24N4O2Purity:99%Color and Shape:SolidMolecular weight:340.4195N-Nitroso Tetracaine Solution (1 mL ) (2-(dimethylamino)ethyl 4-(butyl(nitroso)amino)benzoate)
Compounds with other nitrogen function, nesoiFormula:C15H23N3O3Color and Shape:Colorless LiquidMolecular weight:293.173941-Methyl-1H-1,2,3-triazole-5-carboxylic acid
CAS:Formula:C4H5N3O2Purity:97%Color and Shape:SolidMolecular weight:127.1014Bis-PEG6-acid
CAS:Formula:C16H30O10Purity:97%Color and Shape:LiquidMolecular weight:382.4033999999999Trifluoperazine dihydrochloride
CAS:Formula:C21H24F3N3S·2HClPurity:98.0 - 101.0 % (dried basis)Color and Shape:Whtie to pale yellow crystalline powderMolecular weight:480.42Pyronaridine tetraphosphate
CAS:Formula:C29H32ClN5O2·4H3PO4Purity:≥ 98.0%Color and Shape:Yellow to orange-yellow powder or crystalsMolecular weight:900.1[4,8'-Bi-2H-1-benzopyran]-3,3',5,5',7,7'-hexol, 2,2'-bis(3,4-dihydroxyphenyl)-3,3',4,4'-tetrahydro-, (2R,2'R,3S,3'S,4S)-
CAS:Formula:C30H26O12Purity:98%Color and Shape:SolidMolecular weight:578.5202Faropenem Impurity 12
CAS:Formula:C12H15NO5SColor and Shape:White To Off-White SolidMolecular weight:285.328-(1H-IMIDAZOL-4-YLMETHYLENE)-6,8-DIHYDRO-THIAZOLO[5,4-E]INDOL-7-ONE
CAS:Formula:C13H8N4OSPurity:%Color and Shape:SolidMolecular weight:268.2938Dammar-13(17)-en-3-one, 11,23,24,25-tetrahydroxy-, (8α,9β,11β,14β,23S,24R)-
CAS:Formula:C30H50O5Purity:98%Color and Shape:SolidMolecular weight:490.715Phenserine-d5
CAS:Controlled ProductStability Air Sensitive, Light Sensitive Applications Isotope labelled Phenserine is inhibitor of amyloid precursor protein (APP). Used in Alzheimer’s treatments. References Nordberg, A. et al.: J. Alz. DIsease., 47, 691 (2015); Reale, M. et al.: Curr. Alzheimer. Treatments., 11, 608 (2014);Formula:C20H18D5N3O2Color and Shape:NeatMolecular weight:342.45Methylprednisolone EP Impurity C (Methylprednisolone USP Related Compound C)
CAS:Formula:C20H26O3Color and Shape:White To Off-White SolidMolecular weight:314.433-(4-Isopropylphenyl)propanoic acid
CAS:Formula:C12H16O2Purity:97%Color and Shape:SolidMolecular weight:192.25424000000007(1R)-N-((1R)-1-Phenylethyl)-1-[4-(tert-butyldimethylsilyloxymethyl)cyclohexyl]ethan-1-amine
CAS:Formula:C23H41NOSiPurity:96%Molecular weight:375.6632N-Methylnitroacetamide
CAS:N-Methylnitroacetamide is a pyridinium salt used as an additive in pharmaceutical preparations. It is also a drug substance that is used for oral dosage, and has been shown to be active in methylene chloride and organic solvents. This chemical has been found to have a number of impurities, including acidic compounds and organic solvents, which can cause it to degrade over time. The use of this compound requires validation and kinetic studies to ensure it meets the quality standards for its intended use.Formula:C3H6N2O3Purity:Min. 95%Color and Shape:PowderMolecular weight:118.09 g/molEstra-1,3,5(10)-trien-17-one, 3-methoxy-
CAS:Formula:C19H24O2Purity:98%Color and Shape:SolidMolecular weight:284.3927Pyrido[2,3-d]pyrimidin-7(6H)-one, 5,8-dihydro-2,4-dimethyl-8-[[2'-(2H-tetrazol-5-yl)[1,1'-biphenyl]-4-yl]methyl]-
CAS:Formula:C23H21N7OPurity:99%Color and Shape:SolidMolecular weight:411.45911-{[2-(trifluoromethyl)phenyl]methyl}-1,4-diazepane
CAS:Purity:95.0%Molecular weight:258.2879943847656Methotrexate Impurity 3-d3
CAS:Formula:C20H19D3N8O5Color and Shape:Yellow SolidMolecular weight:457.47α-Hydroxy-cyclohexanemethanesulfonic acid sodium salt
CAS:Please enquire for more information about α-Hydroxy-cyclohexanemethanesulfonic acid sodium salt including the price, delivery time and more detailed product information at the technical inquiry form on this pageFormula:C7H14NaO4SPurity:Min. 95%Molecular weight:217.24 g/mol5-Fluorouracil
CAS:Formula:C4H3FN2O2Purity:≥ 99.0%Color and Shape:White to almost white crystalline powderMolecular weight:130.08Solifenacin N-oxide
CAS:Please enquire for more information about Solifenacin N-oxide including the price, delivery time and more detailed product information at the technical inquiry form on this pageFormula:C23H26N2O3Purity:Min. 95%Color and Shape:White PowderMolecular weight:378.46 g/molDonepezil EP Impurity F (Donepezil USP Related Compound A)
CAS:Formula:C24H27NO3Color and Shape:White To Off-White SolidMolecular weight:377.48Benzenesulfonamide, N-(2,2,2-trifluoroethyl)-N-[4-[2,2,2-trifluoro-1-hydroxy-1-(trifluoromethyl)ethyl]phenyl]-
CAS:Formula:C17H12F9NO3SPurity:95%Color and Shape:SolidMolecular weight:481.3327Fluconazole Impurity 5 Chloride
CAS:Formula:C10H9F2N4O·ClColor and Shape:Pale Yellow SolidMolecular weight:239.21 35.45Ertapenem Ring Open Impurity
CAS:Ertapenem Ring Open Impurity is an impurity standard for research and development. It is a synthetic metabolite that is not present in the drug product. Ertapenem Ring Open Impurity is used as a standard to measure the purity of drugs, and it can be used as a reference material in pharmacopoeia and drug development. This impurity is also used in metabolism studies to determine the extent of conversion of ertapenem into its metabolites.Formula:C22H27N3O8SPurity:Min. 95%Molecular weight:493.53 g/molSemaglutide Impurity 99 Trifluororacetate(Des 1His,2Aib)
Formula:C177H277N41O57·C2HF3O2Molecular weight:3891.39 114.024,6-Dimethoxy-β-methyl-3-phenoxy ambrisentan
CAS:Controlled Product4,6-Dimethoxy-β-methyl-3-phenoxy ambrisentan is a synthetic drug with a high purity and pharmacopoeia. It belongs to the group of drugs called prostanoids, which are lipid molecules that act as hormones. 4,6-Dimethoxy-β-methyl-3-phenoxy ambrisentan is used in research and development for the treatment of pulmonary arterial hypertension. It is an impurity standard for HPLC analysis. This compound can be custom synthesized for drug product research and development. Metabolism studies have been conducted on this compound. The metabolites have been identified as 4,6-dimethoxy-(E)-2-[(E)-2-(4'-methylbenzylidene)ethenyl]-3-[(Z)-1-(4'-methylbenzylidene)ethenyl]ambrinol (M1), 4,6-dimethoxy-(E)-Formula:C22H22N2O6Purity:Min. 95%Molecular weight:410.4 g/molTrimetazidine EP Impurity E DiHCl
CAS:Formula:C14H22N2O3·2HClColor and Shape:White To Off-White SolidMolecular weight:266.34 2*36.4616α,17-[(1RS)-Butylidenebis(oxy)]-9α-bromo-11β,21-dihydroxypregna-1,4-diene-3,20-dione
CAS:Color and Shape:NeatGefitinib Impurity 64
CAS:Formula:C18H26N4O3Color and Shape:White To Off-White SolidMolecular weight:346.43Minoxidil, EP grade
CAS:Formula:C9H15N5OPurity:98.5 - 101.0 %Color and Shape:White or almost white, crystalline powderMolecular weight:209.25IPR-803
CAS:Please enquire for more information about IPR-803 including the price, delivery time and more detailed product information at the technical inquiry form on this pageFormula:C27H23N3O4Purity:Min. 95%Molecular weight:453.5 g/mol8-Hydroxymethyl Riboflavin
CAS:Applications 8-Hydroxymethyl Riboflavin is an impurity of Riboflavin (R414995), a nutritional factor found in milk, eggs, malted barley, liver, kidney, heart, leafy vegetables. Richest natural source is yeast. Minute amounts present in all plant and animal cells. Vitamin (enzyme cofactor). References Unna, K., et al.: J. Pharmacol. Exp. Ther., 76, 75 (1942); Rivlin, et al.: N. Engl. J. Med., 283, 463 (1970); Al-Shammary, F.J., et al.: Anal. Profiles Drug Subs., 19, 429 (1990)Formula:C17H20N4O7Color and Shape:Orange To Dark OrangeMolecular weight:392.36Sulfadimethoxine-d6
CAS:Controlled ProductApplications Sulfadimethoxine-d6 is deuterium labelled sulfadimethoxine-d6, which is an antibacterial. References Seki, et al.: Arzneim.-Forsch., 15, 1441 (1965); Bohni, et al.: Chemotherapy, 14, 195 (1969)Formula:C122H6H8N4O4SColor and Shape:Colourless To Off-WhiteMolecular weight:316.37Glimepiride EP Impurity D (Glimepiride USP Related Compound D)
CAS:Formula:C24H34N4O5SColor and Shape:Yellow SolidMolecular weight:490.62Atazanavir Impurity 9 (4R,5R-Diasteroisomer of DIBOC)
Formula:C32H42N4O5Color and Shape:White To Off-White SolidMolecular weight:562.72Fenticonazole nitrate
CAS:Formula:C24H20Cl2N2OS·HNO3Purity:(Titration) 98.0 - 102.0 % (anhydrous basis)Color and Shape:White or almost white powderMolecular weight:518.41Lapatinib Impurity 1 (O-De(3-fluorobenzyl) Lapatinib)
CAS:Formula:C22H21ClN4O4SColor and Shape:Yellow SolidMolecular weight:472.94(S)-3-((R)-5-Oxopyrrolidine-2-carbonyl)thiazolidine-4-carboxylic acid
CAS:(S)-3-((R)-5-Oxopyrrolidine-2-carbonyl)thiazolidine-4-carboxylic acid is a drug product of the drug development industry. It is a metabolite of 3-(1,2,4-triazol-1-ylmethyl)thiazolidine-4-carboxylic acid and has been used as an analytical standard for HPLC methods. The compound has been shown to be naturally occurring in humans. (S)-3-(1,2,4-Triazol-1ylmethyl)thiazolidine 4 carboxylic acid is also used as the impurity standard for the API 3-(1,2,4 triazol 1ylmethyl)thiazolidine 4 carboxylic acid.Formula:C9H12N2O4SPurity:Min. 95%Molecular weight:244.27 g/molN-[(1R,3S)-3-Hydroxy-1-(hydroxymethyl)-3-phenylpropyl]dodecanamide
CAS:Formula:C22H37NO3Purity:98.0%Color and Shape:SolidMolecular weight:363.5341(E)-1,3-Dimethoxy-5-(4-methoxystyryl)benzene
CAS:Formula:C17H18O3Purity:97%Color and Shape:SolidMolecular weight:270.323Estradiol (Estradiol Valerate EP Impurity A, Estriol EP Impurity D, Ethinylestradiol EP Impurity D)
CAS:Formula:C18H24O2Color and Shape:White To Off-White SolidMolecular weight:272.39tert-Butyl 4-chloro-3-oxobutanoate
CAS:Formula:C8H13ClO3Purity:97%Color and Shape:LiquidMolecular weight:192.64Quetiapine Impurity 8
CAS:Quetiapine Impurity 8 is a drug product that is used as an analytical standard for drug metabolism studies. It is a natural impurity found in the API Quetiapine, which has the CAS number 1977-09-9. Quetiapine Impurity 8 is also an impurity standard for HPLC and has been shown to be a synthetic compound. This compound can be custom synthesized and is often used in research and development of new drugs. Quetiapine Impurity 8 has high purity and pharmacopoeia grade, making it suitable for use in niche markets such as drug development, research, and analysis.Formula:C18H19N3SPurity:Min. 95%Molecular weight:309.4 g/mol[Arg8]Vasopressin TFA
CAS:Formula:C48H66F3N15O14S2Purity:98%Color and Shape:SolidMolecular weight:1198.2549496000001Thiamine triphosphate
CAS:Thiamine triphosphate is a coenzyme that plays an essential role in many biochemical reactions. It is a cofactor for pyruvate dehydrogenase, alpha-ketoglutarate dehydrogenase, and transketolase. Thiamine triphosphate is required for the production of acetyl-CoA from carbohydrates and amino acids. This coenzyme also participates in the synthesis of thiamin, which is necessary for maintaining normal nerve function. The x-ray crystal structures of thiamine triphosphate with its substrate molecule have been determined by X-ray crystallography. These structures are available at PDB ID 1TMP and 1THP. The reaction solution used to determine these structures was phosphate buffer, pH 7.0, at 30 degrees Celsius. The receptor activity of this enzyme has been studied using rat brain homogenates following incubation with various concentrations of prasugrel (a substrate molecule). EnzymeFormula:C12H20N4O10P3SPurity:Min. 95%Molecular weight:505.3 g/molBrimonidine Impurity 16 Disodium Salt
Formula:C15H12BrN5O4·2NaColor and Shape:Yellow SolidMolecular weight:406.20 2*22.992-chloro-5-iodo-4-methylpyridine
CAS:Formula:C6H5ClINPurity:97%Color and Shape:SolidMolecular weight:253.4681Vasopressin Impurity 7 Ditrifluoroacetate
CAS:Formula:C46H64N14O13S2·2C2HF3O2Molecular weight:1085.22 2*114.02Methylprednisolone Hydrogen Succinate EP Impurity B (Methylprednisolone Hemisuccinate USP Related Compound B, Methylprednisolone 17-Hydrogen Succinate)
CAS:Formula:C26H34O8Color and Shape:White To Off-White SolidMolecular weight:474.551,3-Propanediol, 2-phenyl-
CAS:Formula:C9H12O2Purity:95%Color and Shape:SolidMolecular weight:152.1904(1R,3R)-METHYL-1,2,3,4-TETRAHYDRO-2-CHLOROACETYL-1-(3,4-METHYLENEDIOXYPHENYL)-9H-PYRIDO[3,4-B]INDOLE-3-CARBOXYLATE
CAS:Formula:C22H19ClN2O5Purity:95%Color and Shape:SolidMolecular weight:426.8497Givinostat Impurity 5
CAS:Formula:C9H10N2O2Color and Shape:White To Off-White SolidMolecular weight:178.19Tetrasiloxane, 1,1,1,3,3,5,5,7,7,7-decamethyl-
CAS:Formula:C10H30O3Si4Purity:98%Color and Shape:LiquidMolecular weight:310.6854Atropine EP Impurity D (Mixture of Diastereomers) (6-Hydroxyhyoscyamine)
Formula:C17H23NO4Molecular weight:305.38all-trans-Retinol-d5, >80%
CAS:Controlled ProductFormula:C20H25D5OPurity:>80%Color and Shape:NeatMolecular weight:291.48rac Clopidogrel-13C,d3 Hydrogen Sulfate
CAS:Controlled ProductApplications Labelled Clopidogrel, an antithrombotic. References Mills, D.C.B., et al.: Arterioscler. Thromb., 12, 430 (1992), Feuerstein, G., et al.: Exp. Opin. Invest. Drugs, 4, 425 (1995)Formula:CC152H3H13ClNO2S·H2O4SColor and Shape:NeatMolecular weight:423.91Chloramphenicol palmitate
CAS:Formula:C27H42Cl2N2O6Purity:≥ 90%Color and Shape:White powderMolecular weight:561.54β-D-Ribofuranuronamide, 1-[2-chloro-6-[[(3-iodophenyl)methyl]amino]-9H-purin-9-yl]-1-deoxy-N-methyl-
CAS:Formula:C18H18ClIN6O4Purity:99%Color and Shape:SolidMolecular weight:544.7308Ref: IN-DA001TN0
1gTo inquire2mg51.00€5mg79.00€10mg130.00€25mg204.00€50mg248.00€100mg322.00€250mg665.00€Gatifloxacin
CAS:Controlled ProductApplications An antibacterial. References Bauernfeind, A.: J. Antimicro. Chemother., 40, 639 (1997), Fukuda, H., et al.: Antimicrob. Ag. Chemother., 42, 1917 (1998),Formula:C19H22FN3O4Color and Shape:White To Off-WhiteMolecular weight:375.39Tert-Butyl 2-Oxo-1-Oxa-3,7-Diazaspiro[4.4]Nonane-7-Carboxylate
CAS:Formula:C11H18N2O4Purity:95%Color and Shape:SolidMolecular weight:242.27161999999998Dolutegravir Impurity 5
CAS:Formula:C20H20FN3O5Color and Shape:White To Off-White SolidMolecular weight:401.39Pipradrol Hydrochloride
CAS:Controlled ProductApplications Controlled substance (stimulant). CNS stimulant from the same class as methylphenidate (M325880). 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 Rivier, L., et al.: Anal. Chim. Acta, 492, 69 (2003), Politi, L., et al.: J. Anal. Toxicol., 29, 1 (2005),Formula:C18H21NO·ClHColor and Shape:White To Off-WhiteMolecular weight:303.83Opipramol
CAS:Controlled ProductApplications Antidepressant; antipsychotic. 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 Maxwell, R.A., et al.: J. Pharm. Exper. Therap., 178, 158 (1970), Tait, A.C., et al.: J. Clin Pharmac., 2, 93 (1975), Rossi, G.V., et al.: Am. J. Pharm., 148, 37 (1976), Hubbard, J.W., et al.: J. Pharm. Sci., 67, 1571 (1978),Formula:C23H29N3OColor and Shape:YellowMolecular weight:363.501,3,6,8-TetrabroMocarbazole
CAS:Formula:C12H5Br4NPurity:95%Color and Shape:SolidMolecular weight:482.7908Pitavastatin Impurity 1 Sodium Salt (Mixture of Diastereomers)
CAS:Formula:C25H23FNO4·NaColor and Shape:White To Off-White SolidMolecular weight:420.46 22.99
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