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Pharmaceutical Impurity Reference Standards
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- Structure:
- Chemical Name:Ibuprofen Alcohol
- CAS:36039-36-8
- MF:C13H20O
- Structure:
- Chemical Name:1,1-BIS-(4-ISOBUTYLPHENYL)ETHANE
- CAS:102120-87-6
- MF:C22H30
- Chemical Name:Sugammadex sodium Impurity 52
- CAS:
- MF:
- Chemical Name:Sugammadex sodium Impurity 43
- CAS:
- MF:
- Chemical Name:Sugammadex sodium Impurity 39
- CAS:
- MF:
- Structure:
- Chemical Name:Apixaban Impurity 52
- CAS:1620494-31-6
- MF:C31H29N5O4
- Chemical Name:Cefazolin Impurity EP-J
- CAS:
- MF:
- Chemical Name:Cabozantinib impurity 41
- CAS:
- MF:
- Chemical Name:Cabozantinib impurity 67
- CAS:
- MF:
- Structure:
- Chemical Name:ethyl 6-bromo-2-(bromomethyl)-5-hydroxy-1-methyl-1H-indole-3-carboxylate
- CAS:149246-36-6
- MF:C13H13Br2NO3
- Chemical Name:Dapoxetine impurity 50
- CAS:
- MF:
- Chemical Name:Doxofylline Impurity 18
- CAS:
- MF:
- Chemical Name:Dapoxetine impurity 63
- CAS:
- MF:
- Chemical Name:Dapoxetine impurity 57
- CAS:
- MF:
- Structure:
- Chemical Name:Bosutinib Impurity 2 (N-Desmethyl Bosutinib)
- CAS:380843-81-2
- MF:C25H27Cl2N5O3
- Structure:
- Chemical Name:Benzamide, 2,5-dichloro-N-(3-methylbutyl)-
- CAS:349086-08-4
- MF:C12H15Cl2NO
- Structure:
- Chemical Name:BECLOTIAMINE
- CAS:13471-78-8
- MF:C12H16Cl2N4S
- Structure:
- Chemical Name:methyl 5-sulpho-o-anisate
- CAS:94134-07-3
- MF:C9H10O6S
- Structure:
- Chemical Name:3-methyleneisobenzofuran-1(3H)-one
- CAS:3453-63-2
- MF:C9H6O2
- Structure:
- Chemical Name:Irbesartan impurity A
- CAS:
- MF:C25H28N6O
- Structure:
- Chemical Name:N-METHYL-3-CHLORO-3-PHENYL PROPYLAMINE HCL
- CAS:128036-32-8
- MF:C10H15Cl2N
- Structure:
- Chemical Name:2,4,5-TRIFLUORO-3-METHOXYBENZOIC ACID
- CAS:11281-65-5
- MF:C8H5F3O3
- Structure:
- Chemical Name:METHYL TRIPHENYLMETHYL ETHER
- CAS:596-31-6
- MF:C20H18O
- Structure:
- Chemical Name:4,5-Dibromo-1,2-benzenediol
- CAS:2563-26-0
- MF:C6H4Br2O2
- Structure:
- Chemical Name:CLOPIDOGREL CARBOXYLIC ACID
- CAS:144457-28-3
- MF:C15H14ClNO2S
- Structure:
- Chemical Name:RAC (CIS/TRANS) DONEPEZIL N-OXIDE
- CAS:120013-84-5
- MF:C24H29NO4
- Structure:
- Chemical Name:5-Carboxy-2'-deoxyuridine
- CAS:14599-46-3
- MF:C10H12N2O7
- Structure:
- Chemical Name:METOPROLOL IMPURITY D
- CAS:
- MF:C15H25NO3
- Chemical Name:NITRENDIPINE IMPURITY A
- CAS:
- MF:
- Structure:
- Chemical Name:TAMSULOSIN IMPURITY D
- CAS:
- MF:C20H28N2O5S
- Structure:
- Chemical Name:Macitentan Hydroxy amine Impurity
- CAS:2211059-05-9
- MF:C12H12BrN3O2
- Structure:
- Chemical Name:1,3-diethyl-1,3-dimethylurea
- CAS:31468-19-6
- MF:C7H16N2O
- Structure:
- Chemical Name:2,4(1H,3H)-Pyrimidinedione, 6-[(3R)-3-amino-1-piperidinyl]-3-methyl-
- CAS:2276323-24-9
- MF:C10H16N4O2
- Structure:
- Chemical Name:7H-Purine-7-acetic acid, 1,2,3,6-tetrahydro-1,3-dimethyl-2,6-dioxo-, ethyl ester
- CAS:7029-96-1
- MF:C11H14N4O4
- Chemical Name:N-(2-Amino-4,5,6,7-tetrahydro-benzothiazol-6-yl)-acrylamide
- CAS:
- MF:
- Chemical Name:Rifampin Impurity 6
- CAS:
- MF:
- Structure:
- Chemical Name:2,4-dioxo-3-azaspiro[5.5]undecane-1,5-dicarbonitrile
- CAS:4355-15-1
- MF:C12H13N3O2
- Structure:
- Chemical Name:Sugammadex Impurity 12 Monomer（Org198958-2（RRT0.45））
- CAS:2412953-11-6
- MF:C72H112O49S8
- Structure:
- Chemical Name:Sulfamide, N-[5-phenyl-6-[2-(2-pyrimidinyloxy)ethoxy]-4-pyrimidinyl]-N'-propyl-
- CAS:2300968-85-6
- MF:C19H22N6O4S
- Structure:
- Chemical Name:Acetamide, 2-chloro-N-(2-chloroacetyl)-N-(2,6-dimethylphenyl)-
- CAS:112843-97-7
- MF:C12H13Cl2NO2
- Structure:
- Chemical Name:1-[2-cyano-1-(cyanoimino)ethyl]piperidine
- CAS:56488-00-7
- MF:C9H12N4
- Chemical Name:Oseltamivir Impurity 99
- CAS:
- MF:
- Chemical Name:Oseltamivir Impurity 92
- CAS:
- MF:
- Chemical Name:Oseltamivir Impurity 76
- CAS:
- MF:
- Chemical Name:Regorafenib Impurity ABCDEFGHJKL
- CAS:
- MF:
- Structure:
- Chemical Name:Benzonitrile, 4-[2-[(1R,2S)-2-(2,5-difluorophenyl)-2-hydroxy-1-methyl-3-(1H-1,2,4-triazol-1-yl)propyl]-4-thiazolyl]-, rel-
- CAS:1797905-83-9
- MF:C22H17F2N5OS
- Structure:
- Chemical Name:3,4,5-Piperidinetriol, 1-(2-hydroxyethyl)-2-(hydroxymethyl)-, (2S,3S,4R,5S)-
- CAS:1550201-56-3
- MF:C8H17NO5
- Chemical Name:1-(2,4-difluoro-6-hydroxyphenyl)prop-2-en-1-one
- CAS:
- MF:
- Structure:
- Chemical Name:1-(4-fluorophenyl)-1,3-dihydro-1-[3-(methylamino)propyl]isobenzofuran-5-carbonitrile
- CAS:62498-67-3
- MF:C19H19FN2O
- Structure:
- Chemical Name:17,21-Dihydroxy-16α-methylpregna-1,4,9(11)-triene-3,20-dione 21-Acetate
- CAS:10106-41-9
- MF:C24H30O5
- Structure:
- Chemical Name:2-chloro-N-(2,4-dimethylphenyl)acetamide
- CAS:39106-10-0
- MF:C10H12ClNO
- Structure:
- Chemical Name:sodium [2S-(2alpha,5alpha,6beta)]-6-bromo-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylate
- CAS:73335-78-1
- MF:C8H9BrNNaO3S
- Structure:
- Chemical Name:8-chloro-3,7-dihydro-1,3,7-trimethyl-1H-purine-2,6-dione
- CAS:4921-49-7
- MF:C8H9ClN4O2
- Chemical Name:Nicorandil Impurity E
- CAS:
- MF:
- Chemical Name:Prednicarbate Impurity G
- CAS:
- MF:
- Chemical Name:Anastrozole iMpurity F
- CAS:
- MF:
- Chemical Name:Ondansetron IMpurity 6
- CAS:
- MF:
- Chemical Name:MeropeneM iMpurity 6
- CAS:
- MF:
- Structure:
- Chemical Name:Macitentan Impurity 33
- CAS:2089065-77-8
- MF:C28H32Br2N8O6S2
- Chemical Name:Cefminox Impurity 5
- CAS:
- MF:
- Chemical Name:Alogliptin Impurity 20
- CAS:
- MF:
- Structure:
- Chemical Name:Cyclobenzaprine Impurity 3
- CAS:24167-44-0
- MF:C15H11BrO
- Structure:
- Chemical Name:Emtricitabine Impurity 16
- CAS:1160303-44-5
- MF:C8H10FN3O4S
- Chemical Name:Etoricoxib Impurity 44
- CAS:
- MF:
- Structure:
- Chemical Name:Irbesartan Impurity 15
- CAS:
- MF:C25H28N6O
- Chemical Name:Linagliptin Impurity 54
- CAS:
- MF:
- Structure:
- Chemical Name:Ornidazole Impurity 13
- CAS:1685275-23-3
- MF:C7H10N3O6P.Na
- Chemical Name:Oseltamivir Impurity 44
- CAS:
- MF:
- Chemical Name:Oseltamivir Impurity 51
- CAS:
- MF:
- Chemical Name:Palbociclib Impurity 47
- CAS:
- MF:
- Chemical Name:Rosuvastatin Impurity 98
- CAS:
- MF:
- Structure:
- Chemical Name:Sildenafil Impurity 38
- CAS:
- MF:C22H30N6O4S
- Chemical Name:Tenofovir Impurity 70
- CAS:
- MF:
- Chemical Name:Ticagrelor Impurity 122
- CAS:
- MF:
- Structure:
- Chemical Name:Tofacitinib Impurity 111
- CAS:2374700-37-3
- MF:C27H31N5O2S
- Chemical Name:Trelagliptin Impurity 41
- CAS:
- MF:
- Chemical Name:Carbocistein Impurity D
- CAS:
- MF:
- Structure:
- Chemical Name:Ranitidine impurity F
- CAS:
- MF:C13H22N4O3S
- Chemical Name:Beclometasone Impurity B
- CAS:
- MF:
- Structure:
- Chemical Name:(3R)-Nmethyl-3-(3-methylphenoxy)-3-phenylpropan-1-amine
- CAS:1643684-05-2
- MF:C17H22ClNO
- Chemical Name:Caspofungin Impurity 6
- CAS:
- MF:
- Chemical Name:Cefuroxime Dioxide Impurity(Cefuroxime Sulfoxide)
- CAS:
- MF:
- Chemical Name:Ampicillin Impurity F(USP)
- CAS:
- MF:
- Chemical Name:Azlocillin Opern-Ring Acetylation Impurity
- CAS:
- MF:
- Structure:
- Chemical Name:Miconazole Impurity G(EP)
- CAS:1370335-40-2
- MF:C18H14Cl4N2O
- Chemical Name:2-chloro-1-(5-hydroxy-5H-chromeno[2,3-b]pyridin-7-yl)propan-1-one
- CAS:
- MF:
- Structure:
- Chemical Name:2-(5H-chromeno[2,3-b]pyridin-7-yl)acrylic acid
- CAS:52549-22-1
- MF:C15H11NO3
- Structure:
- Chemical Name:1-(6-chloro-5-fluoropyrimidin-4-yl)ethanol
- CAS:1289559-76-7
- MF:C6H6ClFN2O
- Structure:
- Chemical Name:Fluoxetine Impurity 29,methyl({3-phenyl-3-[2-(trifluoromethyl)phenoxy]propyl})amine
- CAS:56161-71-8
- MF:C17H18F3NO
- Chemical Name:Ceftriaxone sodium impurity 09
- CAS:
- MF:
- Structure:
- Chemical Name:Cefradine Impurity 8
- CAS:30959-67-2
- MF:C16H19N3O4S
- Structure:
- Chemical Name:Dobutamine Impurity 3
- CAS:334947-75-0
- MF:C19H25NO3
- Structure:
- Chemical Name:Anastrozole Impurity 19
- CAS:1301724-97-9
- MF:C19H21N3O2
- Structure:
- Chemical Name:Biotin Impurity
- CAS:171232-73-8
- MF:C19H18N2O2S
- Structure:
- Chemical Name:PANTOPRAZOLE N-OXIDE
- CAS:953787-60-5
- MF:C16H15F2N3O5S
- Structure:
- Chemical Name:DEHYDROARIPIPRAZOLE, HYDROCHLORIDE
- CAS:1008531-60-9
- MF:C23H26Cl3N3O2
- Structure:
- Chemical Name:N-(3-GUANIDINO-4-METHYLPHENYL)-4-(METHYLPIPERAZINE-1-YL-METHYL)BENZAMIDE
- CAS:581076-65-5
- MF:C21H28N6O
- Structure:
- Chemical Name:Tirofiban-d9 Hydrochloride
- CAS:1331911-68-2
- MF:C22H37ClN2O5S