APIs for research and impurities
Subcategories of "APIs for research and impurities"
- Aminoacids and derivatives(12,318 products)
- Anthraquinones and derivatives(402 products)
- Benzimidazole and Imidazole Derivatives(10,390 products)
- Benzodiazepine Derivatives(326 products)
- Carbohydrates and glycoconjugates(5,044 products)
- Esters and Derivatives(42,242 products)
- Fatty Acids and Lypidic Derivatives(32,374 products)
- Flavonoids and Polyphenols(17,073 products)
- Free Radicals and Oxidant/Reducing Agents(211 products)
- Ketones and derivatives(2,399 products)
- Natural and semi-synthetic antibiotics(6,324 products)
- Nitriles and Cyano Derivatives(3,068 products)
- Nitrosamines and Derivatives(55 products)
- Nucleosides and Nucleotides(3,445 products)
- Organic Phosphates and Phosphonates(1,194 products)
- Organic Sulphonates and Sulphates(10,419 products)
- Organometallics(4,417 products)
- Others(6,269 products)
- Peptides and Proteins(3,132 products)
- Polymers and Derivatives(99 products)
- Purines and Pyrimidine Derivatives(8,898 products)
- Quinazoline and Quinoline Derivatives(65,683 products)
- Quinones and Derivatives(24,341 products)
- Salts and Derivatives of Active Pharmaceutical Ingredients (API)(81,254 products)
- Steroids and Derivatives(4,923 products)
- Sulfonamides and Derivatives(2,564 products)
- Terpenoids and Derivatives(3,835 products)
- Thiazolidinediones and Thiopyrans(2,753 products)
- β-Adrenergic Compounds(227 products)
Found 58629 products of "APIs for research and impurities"
Ref: 4Z-P-0455
Discontinued productRef: 4Z-O-103015
Discontinued productRef: 4Z-L-3248
Discontinued productRef: 4Z-T-148004
Discontinued productRef: 4Z-H-042013
Discontinued productRef: 4Z-R-289
Discontinued productRef: 4Z-T-143007
Discontinued productRef: 4Z-PS-189063
Discontinued productRef: 4Z-A-1452
Discontinued productRef: 4Z-E-104013
Discontinued productRef: 4Z-R-080038
Discontinued productRef: 4Z-A-123005
Discontinued productRef: 4Z-T-02197
Discontinued productRef: 4Z-D-3253
Discontinued productRef: 4Z-I-058004
Discontinued productRef: 4Z-PG-194006
Discontinued productRef: 4Z-L-3246
Discontinued productRef: 4Z-P-0262
Discontinued productRef: 4Z-L-3216
Discontinued product2,2'-Azobis-(2-methylbutyronitrile)
CAS:Applications 2,2'-AZOBIS-(2-METHYLBUTYRONITRILE) (cas# 13472-08-7) is a useful research chemical.
Dangerous Goods Info This compound is forbidden to ship by air under IATA regulations.Formula:C10H16N4Color and Shape:White to Off-White SolidMolecular weight:192.27Aflatoxin B1 8,9-Epoxide
CAS:Controlled ProductFormula:C17H12O7Purity:>80%Color and Shape:NeatMolecular weight:328.27Daunorubicinol
CAS:Daunorubicin metabolite
Formula:C27H31NO10Purity:Min. 95%Color and Shape:Red PowderMolecular weight:529.54 g/molRef: 3D-MD32003
Discontinued product2-Mercaptobenzimidazole
CAS: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.
Formula:C7H6N2SPurity:Min. 99 Area-%Color and Shape:White/Off-White SolidMolecular weight:150.19 g/molRef: 3D-IM00310
Discontinued productAtorvastatin methyl ester
CAS:Atorvastatin methyl ester is a statin drug that inhibits the synthesis of cholesterol and other lipids in the body. It is used to reduce high levels of low-density lipoprotein (LDL) cholesterol, which may lead to heart disease or stroke. Atorvastatin methyl ester has been shown to be effective in reducing the uptake of LDL cholesterol into cells by preventing the formation of LDL particles. This drug also decreases the production of biphosphate-containing phospholipids, which are essential for dendritic cell maturation. The crystalline polymorphs have been characterized by X-ray diffraction and microscopy. Impurities can be detected using ultraviolet spectroscopy, infrared spectroscopy, or nuclear magnetic resonance spectroscopy.
Formula:C34H37FN2O5Purity:Min. 95%Color and Shape:PowderMolecular weight:572.67 g/molRef: 3D-IA18021
Discontinued product(1S,2S,3R,5S)-3-[7-[[(1R,2S)-2-(2,3-Difluorophenyl)cyclopropyl]amino]-5-(propylthio)-3H-1,2,3-triazolo[4,5-d]pyrimidin-3-yl]-5-(2-hy droxyethoxy)-1,2-cyclopentanediol
CAS:Please enquire for more information about (1S,2S,3R,5S)-3-[7-[[(1R,2S)-2-(2,3-Difluorophenyl)cyclopropyl]amino]-5-(propylthio)-3H-1,2,3-triazolo[4,5-d]pyrimidin-3-yl]-5-(2-hy droxyethoxy)-1,2-cyclopentanediol including the price, delivery time and more detailed product information at the technical inquiry form on this page
Formula:C23H28F2N6O4SMolecular weight:522.57 g/molN-[1-(R)-(1-Naphthyl)ethyl]-3-[3-(trifluoromethyl)phenyl]-1-propanamide
CAS:N-[1-(R)-(1-Naphthyl)ethyl]-3-[3-(trifluoromethyl)phenyl]-1-propanamide is an impurity standard that is used in the manufacture of a drug product. This compound is not found in nature and has no known biological activity. It has been shown to be metabolized by CYP2D6, CYP2C8, and CYP2C9. The analytical impurity content of this compound should be less than 10% or 10 ppm as determined using HPLC methods.Formula:C22H20F3NOPurity:Min. 95%Color and Shape:PowderMolecular weight:371.4 g/molRef: 3D-IN58183
Discontinued productOlmesartan EP Impurity C
CAS:Olmesartan medoxomil is a prodrug that is metabolized to the active form, olmesartan, in the liver. The esters of olmesartan medoxomil are metabolized by hydrolysis and by esterases. The most common side effects of olmesartan medoxomil are headache, dizziness, fatigue, nausea and diarrhea. Olmesartan medoxomil is used for the treatment of high blood pressure in adults. This drug also has anti-inflammatory properties due to its inhibition of prostaglandin synthesis.
Formula:C29H28N6O5Purity:Min. 95%Color and Shape:White Off-White PowderMolecular weight:540.57 g/mol5-Methoxy-2-[[(4-methoxy-3,5-dimethyl-2-pyridinyl)methyl]sulfonyl]-1H-benzimidazole
CAS:5-Methoxy-2-[[(4-methoxy-3,5-dimethyl-2-pyridinyl)methyl]sulfonyl]-1H-benzimidazole is an inhibitor of cytochrome P450 2C19. It has been shown to inhibit the activity of this enzyme in a concentration dependent manner and to enhance the activity of omeprazole by inhibiting its metabolism. 5-Methoxy-2-[(4-methoxy, 3,5 dimethylpyridiniumyl)methyl]sulfonyl]-1H benzimidazole is used as a model system for studying drug interactions due to its ability to inhibit cytochrome P450 2C19 and CYP2C19 protein expression. 5 METHOXY - 2 - [[ ( 4 - METHOXY - 3 , 5 - DIMETHYL - 2 - PYRIDINYL ) M
Formula:C17H19N3O4SPurity:Min. 95%Color and Shape:White Off-White PowderMolecular weight:361.42 g/mol(R)-3-(3-Fluoro-4-morpholin-4-ylphenyl)-2-oxo-5-oxazolidinyl)methyl methansulfonate
CAS:(R)-3-(3-Fluoro-4-morpholin-4-ylphenyl)-2-oxo-5-oxazolidinyl)methyl methansulfonate is a Custom synthesis, drug product, Metabolite, Synthetic, Drug development, Impurity standard, Metabolism studies, API impurity, Natural, pharmacopoeia, analytical and HPLC standard. It is CAS No. 174649-09-3.Formula:C15H19FN2O6SPurity:Min. 95%Molecular weight:374.39 g/molRef: 3D-IF58046
Discontinued productColchicine EP Impurity B
Colchicine EP Impurity B is a synthetic, impurity standard that is used in research and development for drug product development. It is also used as an analytical reagent. Colchicine EP Impurity B has been shown to be a metabolite of colchicine, which is found in the natural environment. This impurity can be synthesized by reacting 4-hydroxybenzaldehyde with nitroethane and sodium nitrite in the presence of hydrochloric acid. Analytical methods to detect this impurity include HPLC and GC-MS.
Purity:Min. 95%N-(5-Aminopentyl) methotrexate amide
CAS:N-(5-Aminopentyl) methotrexate amide is a fluorescent probe that is used to study the transport of drugs across cell membranes. It binds to the plasma membrane of cells and can be visualized with a fluorescence microscope. N-(5-Aminopentyl) methotrexate amide has been shown to bind to leukemia cells in murine leukemia models. It has a high affinity for drug-resistant cells, which makes it useful for studying drug resistance mechanisms. This probe can be used at nanomolar concentrations for imaging studies, as well as for measuring the uptake of drugs into cancer cells by flow cytometry.
Formula:C25H34N10O4Purity:Min. 95%Color and Shape:Yellow PowderMolecular weight:538.6 g/molRef: 3D-FA17806
Discontinued productDehydroxy bisoprolol
CAS:Dehydroxy bisoprolol is an impurity of the drug Bisoprolol that is used to make the drug product Metoprolol. It is a metabolite of Bisoprolol, which is produced by the liver after metabolism and excretion. Dehydroxy bisoprolol has been detected in plasma, urine, feces, and breast milk. The pharmacological effects of Dehydroxy bisoprolol have not been studied.
Formula:C18H29NO3Purity:Min. 95%Color and Shape:PowderMolecular weight:307.43 g/molRef: 3D-FD20967
Discontinued product22-Oxo-vincaleukoblastine 6'-oxide
CAS:22-Oxo-vincaleukoblastine 6'-oxide is a synthetic drug with no known clinical use. It is an impurity of the vinca alkaloid drug vinblastine and may be found in small amounts in other vinca alkaloid drugs. 22-Oxo-vincaleukoblastine 6'-oxide is a metabolite of the vinca alkaloids, which are used as anticancer drugs. This substance has been shown to inhibit the metabolism of some cancer cells, leading to increased cell proliferation.
Formula:C46H56N4O11Purity:Min. 95%Color and Shape:PowderMolecular weight:840.96 g/molRef: 3D-IO28695
Discontinued product2-Carboxybenzoyl amlodipine
CAS:2-Carboxybenzoyl amlodipine is a metabolite of the antihypertensive drug amlodipine. It is a white crystalline solid that is soluble in water. 2-Carboxybenzoyl amlodipine can be used as an impurity standard for HPLC analyses, and as an analytical standard for the determination of amlodipine in human plasma.
Formula:C28H29ClN2O8Purity:Min. 95%Color and Shape:White to off-white solid.Molecular weight:556.99 g/molRef: 3D-IC19763
Discontinued productCeftazidime impurity G
CAS:Please enquire for more information about Ceftazidime impurity G including the price, delivery time and more detailed product information at the technical inquiry form on this page
Formula:C11H14N4O5SPurity:Min. 95%Color and Shape:PowderMolecular weight:314.32 g/molRef: 3D-IC63722
Discontinued productRotigotine Impurity 7
CAS:Rotigotine Impurity 7 is an impurity that has been identified in the synthesis of rotigotine. Rotigotine Impurity 7 is a synthetic compound with a CAS number of 1229620-82-9. It is intended for use as an analytical standard and as a component in the manufacture of rotigotine, which is indicated for the management of Parkinson's disease. This product has not been tested in animals or humans, and it should be handled with care.
Formula:C21H28ClNO2SPurity:Min. 95%Molecular weight:393.97 g/molRifaximin Impurity 1
CAS:Rifaximin Impurity 1 is a synthetic impurity standard for Rifaximin. It is a metabolite of rifaximin and is used in research and development to test the purity of drug products. It has a molecular weight of 314.2 g/mol and molecular formula C9H16N4O4S. This product is not manufactured by or for the original equipment manufacturer (OEM).
Formula:C43H49N3O11Purity:Min. 95%Molecular weight:783.86 g/molα-Methyl-1,3-benzodioxole-5-propanamine
CAS:Controlled Productα-Methyl-1,3-benzodioxole-5-propanamine (AMEB) is a chemical compound that minimizes the reaction products in industrial reactions. It has been used as an absorption agent and crosslinking agent in bioconjugate chemistry. The hydroxyl group on AMEB can be removed by hydrolysis to yield α-methyl-1,3-benzodioxole, which can then be converted to the amino acid methionine. AMEB has also been shown to have locomotor activity and to increase the synthesis of hyaluronic acid, which is important for maintaining joint health.
Formula:C11H15NO2Purity:Min. 95%Color and Shape:PowderMolecular weight:193.24 g/molClarithromycin EP Impurity K
CAS:Clarithromycin EP Impurity K is an impurity standard for Clarithromycin in the form of a crystalline white powder. It is a synthetic compound which has been used as a drug product and as an analytical standard. This compound can be synthesized from erythromycin A, but it is not active against bacteria. Clarithromycin EP Impurity K has been shown to have metabolite properties in animals and humans, including metabolism studies with HPLC standards.
Formula:C30H51NO8Purity:Min. 95 Area-%Color and Shape:PowderMolecular weight:553.73 g/molRef: 3D-IC166175
Discontinued productAtorvastatin epoxydione impurity
CAS:Atorvastatin epoxydione impurity (EPI) is a heptanoic, hydrate, diastereoisomer, racemic mixture, enantiomer and impurity of Atorvastatin. The EPI has been minimized in the formulation process by using a novel synthesis route that employs a chiral pyrrole derivative as an intermediate. This minimization has allowed for the elimination of the tautomer and other impurities present in the original compound.
Formula:C26H22FNO4Purity:Min. 95 Area-%Color and Shape:White PowderMolecular weight:431.46 g/molRef: 3D-IA18016
Discontinued productTrazodone hydrochloride impurity C
Trazodone is a psychotropic agent that belongs to the group of antidepressants. Trazodone hydrochloride impurity C is a metabolite of trazodone and can be used as an impurity standard for the drug product in pharmacopoeia. Trazodone hydrochloride impurity C has been found in urine, blood, and saliva after administration of trazodone. It is also found in the plasma of pregnant women who are taking trazodone to treat depression or anxiety during pregnancy.
Trazodone hydrochloride impurity C is synthesized using a custom synthesis with high purity. It has been shown to have a niche market as an analytical reference material for HPLC standards.Formula:C19H23Cl2N5OPurity:Min. 95%Molecular weight:408.32 g/molTrazodone hydrochloride impurity H
Trazodone hydrochloride impurity H is an impurity of the drug product Trazodone hydrochloride. It is a natural metabolite of Trazodone hydrochloride, which is synthesized in vivo by oxidation of the parent compound. Impurity H has been identified as a potential impurity standard for HPLC-UV analysis of Trazodone hydrochloride. The purity of this compound is 98.3% and it is available on a custom synthesis basis.
Formula:C23H30Cl2N4·HClPurity:Min. 95%Molecular weight:469.88 g/molChlorthalidone impurity G
CAS:Chlorthalidone impurity G is a synthetic, high purity, pharmacopoeia grade impurity standard for chlorthalidone. It is a metabolite of the drug and can be found in the urine of patients taking this medication. Chlorthalidone impurity G is used for metabolism studies, as it may have an effect on the excretion of other drugs. Research and Development
Formula:C14H9Cl2NO2Purity:Min. 95 Area-%Color and Shape:PowderMolecular weight:294.13 g/molRef: 3D-IC20415
Discontinued product4-(2-Methoxyethyl)phenol
CAS:4-(2-Methoxyethyl)phenol is a synthetic compound that is an antihypertensive agent. It is used to reduce high blood pressure, which may be due to its ability to block the action of angiotensin II, a potent vasoconstrictive hormone, by binding with its receptor. 4-(2-Methoxyethyl)phenol has been shown to be more potent than metoprolol succinate and less toxic than hydroxylated compounds such as propranolol in pharmacokinetic studies. In addition, 4-(2-Methoxyethyl)phenol has been found to have a low risk of congestive heart failure. The industrial process for this substance involves the reaction of hydrochloric acid with phenol in the presence of a catalyst such as aluminium chloride or zinc chloride.
Formula:C9H12O2Purity:Min. 95%Color and Shape:PowderMolecular weight:152.19 g/molRef: 3D-IM25300
Discontinued productN-[[2'-(2H-Tetrazol-5-yl)[1,1'-biphenyl]-4-yl]methyl]-L-valine methyl ester
CAS:N-[[2'-(2H-Tetrazol-5-yl)[1,1'-biphenyl]-4-yl]methyl]-L-valine methyl ester is a synthetic compound used as an HPLC standard. It is also used in the development of new drugs to study the metabolism of these drugs and their metabolites. N-[[2'-(2H-Tetrazol-5-yl)[1,1'-biphenyl]-4-yl]methyl]-L-valine methyl ester can be synthesized from 2-[(2H)-tetrazol-5-yl][1,1'-biphenyl]-4-(phenylamino)propanenitrile and L -valine methyl ester. It is soluble in ethyl acetate, chloroform and methanol. N-[2'(2H)-tetrazol-[5' (phenylamino)
Formula:C20H23N5O2Purity:Min. 95%Color and Shape:PowderMolecular weight:365.43 g/molRef: 3D-IT106481
Discontinued product4-(2-Bromo-ethyl)-1-ethyl-3,3-diphenyl-pyrrolidin-2-one
CAS:This compound is a research and development impurity standard. It is synthesized in accordance with the pharmacopoeia, and it is an API impurity. It is also used as a metabolite standard for drug development and metabolism studies. This compound has been tested in HPLC standards.
Purity:Min. 95%Trazodone Hydrochloride Impurity G
Trazodone Hydrochloride Impurity G is a synthetic compound that is an impurity found in Trazodone Hydrochloride, CAS No. 77893-17-6. This compound has the following physical properties: MW = 284.27, mp = 227-229°C, [α] D = -33.5° (c 1.0 in water), and UV max (λ max ) = 228 nm. It has been shown that this compound is not metabolized by human enzymes and is found to be natural. It can be used as a standard for HPLC analysis of Trazodone Hydrochloride Impurities A-F with the following retention times: 8.7 min for Impurity A, 9.2 min for Impurity B, 9.9 min for Impurity C, 10.4 min for Impurity D, 11.1 min for Impurity E, and 12.3 min for Impurity F.BR>BR
Formula:C17H27ClN2O·HClPurity:Min. 95%Molecular weight:347.32 g/mol




