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Pharmaceutical Impurity Reference Standards
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- Chemical Name:GLICLAZIDE IMPURITY F
- CAS:
- MF:
- Chemical Name:AMIKACIN IMPURITY A
- CAS:
- MF:
- Chemical Name:ONDANSETRON IMPURITY D
- CAS:
- MF:
- Chemical Name:PERINDOPRIL IMPURITY A
- CAS:
- MF:
- Structure:
- Chemical Name:(E)-Ceftiofur
- CAS:120882-20-4
- MF:C19H17N5O7S3
- Chemical Name:Cefmetazole Impurity E
- CAS:
- MF:
- Structure:
- Chemical Name:Azlocillin Opern-Ring Decarboxylation Impurity
- CAS:99795-14-9
- MF:C19H25N5O5S
- Structure:
- Chemical Name:Cefotiam Impurity 1
- CAS:2243596-87-2
- MF:C18H23N9O4S3
- Chemical Name:Eribulin Impurity 3
- CAS:
- MF:
- Chemical Name:sodium 2-(2-(4-((4-chlorophenyl)(phenyl)methyl)-1-oxidopiperazin-1-yl)ethoxy)acetate
- CAS:
- MF:
- Structure:
- Chemical Name:Brivaracetam Impurity 25
- CAS:10547-88-3
- MF:C7H12O2
- Chemical Name:(S)-N-((R)-1-amino-1-oxobutan-2-yl)-3-(bromomethyl)hexanamide
- CAS:
- MF:
- Chemical Name:Peramivir Impurity 19
- CAS:
- MF:
- Structure:
- Chemical Name:Diquafosol Impurity 13
- CAS:211448-81-6
- MF:C18H28N4O29P6
- Structure:
- Chemical Name:Montelukast Sodium EP Impurity G
- CAS:1428448-96-7
- MF:C35H37ClNNaO3S
- Structure:
- Chemical Name:Amifostine related impurities 2
- CAS:17002-55-0
- MF:C8H21N3O
- Structure:
- Chemical Name:Oxacillin Impurity F
- CAS:5053-35-0
- MF:C19H19N3O4S2
- Structure:
- Chemical Name:Peramivir Impurity 30
- CAS:2758048-79-0
- MF:C20H36N2O6
- Structure:
- Chemical Name:Dihydro-Simvastatin
- CAS:92083-03-9
- MF:C25H40O5
- Chemical Name:Ceftriaxone Sodium impurity 3
- CAS:
- MF:
- Chemical Name:Sugammadex sodium Monoiodo Impurity
- CAS:
- MF:
- Structure:
- Chemical Name:(3S,4R)-3-((benzo[d][1,3]dioxol-5-yloxy)methyl)-1-methyl-4-phenylpiperidine
- CAS:
- MF:C20H23NO3
- Structure:
- Chemical Name:Avatrombopag Impurity 22
- CAS:570403-14-4
- MF:C31H38Cl2N6O3S2
- Structure:
- Chemical Name:176760-99-9
- CAS:176760-99-9
- MF:C17H13FN2O4
- Structure:
- Chemical Name:NILOTINIB IMPURITY 17
- CAS:851137-91-2
- MF:C17H15N5O
- Chemical Name:DexMedetoMidine IMpurity 16
- CAS:
- MF:
- Chemical Name:Canagliflozin Impurity 2
- CAS:2952941-15-8
- MF:
- Chemical Name:Rivaroxaban Impurity 22
- CAS:
- MF:
- Structure:
- Chemical Name:Levofloxacin Impurity 5
- CAS:2206360-62-3
- MF:C13H10FNO5
- Chemical Name:Ezetimibe Impurity 33
- CAS:
- MF:
- Structure:
- Chemical Name:Ezetimibe-28
- CAS:1478663-95-4
- MF:C44H52F2N2O6Si
- Chemical Name:Vonoprazan Impurity U4
- CAS:
- MF:
- Structure:
- Chemical Name:Emtricitabine Impurity 28
- CAS:1238210-14-4
- MF:C8H11N3O4S
- Chemical Name:Parecoxib SodiuM iMpurity 37
- CAS:
- MF:
- Structure:
- Chemical Name:(3R,4R)-3-((benzo[d][1,3]dioxol-5-yloxy)methyl)-4-(4-fluorophenyl)-1-methylpiperidine compound
- CAS:105834-21-7
- MF:C20H22FNO3
- Chemical Name:Apixaban Impurity BMS-A
- CAS:
- MF:
- Structure:
- Chemical Name:Afatinib Impurity 70
- CAS:125781-04-6
- MF:C4H7ClO2
- Structure:
- Chemical Name:Apixaban impurity 14/6-(4-aminophenyl)-1-(4-methoxyphenyl)-7-oxo-4,5,6,7-tetrahydro-1H-pyrazolo[3,4-c]pyridine-3-carboxylic acid
- CAS:1704504-93-7
- MF:C20H18N4O4
- Structure:
- Chemical Name:Cabozantinib Impurity 46
- CAS:1247859-37-5
- MF:C11H10FNO3
- Structure:
- Chemical Name:Ivabradine Impurity S33172
- CAS:2247881-26-9
- MF:C26H34N2O5
- Chemical Name:Tenofovir Impurity 71
- CAS:
- MF:
- Chemical Name:NICERGOLINE IMP. D (EP): 5-BROMOPYRIDINE-3-CARBOXYLIC ACID
- CAS:
- MF:
- Structure:
- Chemical Name:AMOXICILLIN TRIHYDRATE IMP. D (EP) AS SODIUM SALT:(4S)-2-[[[(2R)-2-AMINO-2-(4-HYDROXYPHENYL)ACETYL]AMINO]-CARBOXYMETHYL]-5,5-DIMETHYLTHIAZOLIDINE-4-CARBOXYLIC ACID SODIUM SALT (PENICILLOICACIDS OF AMO
- CAS:1642629-94-4
- MF:C16H21N3O6S
- Structure:
- Chemical Name:4-CHLORO-6-(2-CHLORO-ETHOXY)-7-(2-METHOXY-ETHOXY)-QUINAZOLINE
- CAS:183322-19-2
- MF:C13H14Cl2N2O3
- Structure:
- Chemical Name:2-PIPERAZINE-4-AMINO-6,7-DIMETHOXY QUINOLINE HYDROCHLORIDE
- CAS:84050-22-6
- MF:C14H20ClN5O2
- Structure:
- Chemical Name:2-CHLORO-N-(2,3-DIMETHYL-PHENYL)-ACETAMIDE
- CAS:2564-07-0
- MF:C10H12ClNO
- Structure:
- Chemical Name:1,4-dihydro-2,6-dimethyl-4-(3'-nitrophenyl)-pyridine-3,5-dicarboxylic acid monoisopropyl ester
- CAS:116983-17-6
- MF:C18H20N2O6
- Chemical Name:Cabozantinib impurity 37
- CAS:
- MF:
- Chemical Name:4-(1-bromoethyl)-6-(1-(6-chloro-5-fluoropyrimidin-4-yl)ethyl)-5-fluoropyrimidine
- CAS:
- MF:
- Chemical Name:Dapoxetine impurity 53
- CAS:
- MF:
- Chemical Name:Dapoxetine impurity 70
- CAS:
- MF:
- Structure:
- Chemical Name:Bosutinib Impurity 38
- CAS:2095306-26-4
- MF:C46H44Cl4N8O6
- Structure:
- Chemical Name:(2RS)-2-(4-ETHYLPHENYL)PROPANOIC ACID
- CAS:3585-52-2
- MF:C11H14O2
- Structure:
- Chemical Name:2-(chloromethyl)-3-methylpyridin-4-ol
- CAS:1805648-51-4
- MF:C7H8ClNO
- Structure:
- Chemical Name:Mupirocin Calcium EP Impurity I
- CAS:
- MF:C26H44CaO9
- Structure:
- Chemical Name:Benzenepropanoic acid, α-hydroxy-β-[[(3E)-1-oxo-3-hexen-1-yl]amino]-, (2aR,4S,4aS,6R,9S,11S,12S,12aR,12bS)-6,12b-bis(acetyloxy)-12-(benzoyloxy)-2a,3,4,4a,5,6,9,10,11,12,12a,12b-dodecahydro-4,11-dihydroxy-4a,8,13,13-tetramethyl-5-oxo-7,11-methano-1H-cyclod
- CAS:2243233-98-7
- MF:C46H55NO14
- Structure:
- Chemical Name:D-erythro-Hexonic acid, 2,4-dideoxy-3,5-O-(1-methylethylidene)-6-S-(5-methyl-1,3,4-thiadiazol-2-yl)-6-thio-, 1,1-dimethylethyl ester
- CAS:1326303-05-2
- MF:C16H26N2O4S2
- Structure:
- Chemical Name:L-Leucine, N-[(2S)-2-amino-1-oxo-4-phenylbutyl]-
- CAS:290298-02-1
- MF:C16H24N2O3
- Structure:
- Chemical Name:5-Isobenzofurancarbonitrile, 1-[3-(dimethylamino)propyl]-1,3-dihydro-1-hydroxy-
- CAS:2102609-59-4
- MF:C14H18N2O2
- Structure:
- Chemical Name:L-Milnacipran Carbamoyl-beta-D-Glucuronide
- CAS:1446438-98-7
- MF:C22H30N2O9
- Structure:
- Chemical Name:1H-Imidazole-1-carboxylic acid, (1R)-2-(1,3-dihydro-1,3-dioxo-2H-isoindol-2-yl)-1-[[[(2R)-3-(1,3-dihydro-1,3-dioxo-2H-isoindol-2-yl)-2-[(1H-imidazol-1-ylcarbonyl)oxy]propyl][4-(3-oxo-4-morpholinyl)phenyl]amino]methyl]ethyl ester
- CAS:2097255-05-3
- MF:C40H34N8O10
- Chemical Name:Elagolix Sodium impurity5
- CAS:
- MF:
- Chemical Name:Tadalafil Impurity 46
- CAS:
- MF:
- Structure:
- Chemical Name:(trans)-4-((2-amino-3,4-dibromobenzyl)amino)cyclohexanol
- CAS:
- MF:C13H18Br2N2O
- Chemical Name:cefdinir
- CAS:
- MF:
- Chemical Name:ACICLOVIR, Impurity J
- CAS:
- MF:
- Structure:
- Chemical Name:1H-Inden-1-amine, 2,3-dihydro-N-2-propen-1-yl-
- CAS:91639-43-9
- MF:C12H15N
- Structure:
- Chemical Name:Salbutamol impurity 42
- CAS:18910-69-5
- MF:C14H23NO3
- Chemical Name:(E)-8-(3,4-dimethoxystyryl)
- CAS:
- MF:
- Structure:
- Chemical Name:(+)-Mediresinol Di-O-β-D-glucopyranoside
- CAS:88142-63-6
- MF:C33H44O17
- Chemical Name:Cefdinir CP Impurity B
- CAS:
- MF:
- Structure:
- Chemical Name:Voriconazole Impurity 15
- CAS:321589-00-8
- MF:C22H19F4N7O
- Chemical Name:Fluconazole Impurity 2
- CAS:
- MF:
- Chemical Name:Imatinib EP Impurity D Chloride
- CAS:
- MF:
- Chemical Name:Favipiravir Impurity
- CAS:
- MF:
- Structure:
- Chemical Name:Vildagliptin Dione Impurity
- CAS:1844894-70-7
- MF:C17H24N2O3
- Chemical Name:Adsorption of hydrogen sulfide Adsorption of impurities in water filter material
- CAS:
- MF:
- Structure:
- Chemical Name:Citalopram impurity 9/Citalopram EP Impurity C Oxalate Salt/3-Oxo Citalopram Oxalate Salt/Citalopram Related Compound C Oxalate Salt/3-(3-Dimethylaminopropyl)-3-(4-fluorophenyl)-6-cyano-1(3H)-isobenzofuranone oxalate
- CAS:1440961-11-4
- MF:C22H21FN2O6
- Structure:
- Chemical Name:1H-Pyrrole-3-carboxamide, 5-[(Z)-(5-fluoro-1,2-dihydro-2-oxo-3H-indol-3-ylidene)methyl]-N-(2-hydroxyethyl)-2,4-dimethyl-
- CAS:2170562-55-5
- MF:C18H18FN3O3
- Structure:
- Chemical Name:Apixaban Impurity 70
- CAS:1998079-14-3
- MF:C44H40N8O9
- Structure:
- Chemical Name:Favipiravir Impurity 14
- CAS:356783-49-8
- MF:C5HClFN3
- Structure:
- Chemical Name:Posaconazole Impurity 93
- CAS:165115-82-2
- MF:C19H19F2IO2
- Chemical Name:N-Dealkyl Flurazepam (Midazolam impurity)
- CAS:
- MF:
- Chemical Name:4-((3-amino-1H-indazol-5-yl)methyl)phthalazin-1(2H)-one
- CAS:
- MF:
- Structure:
- Chemical Name:3-[(2-[(E)-2-(3-ETHYL-1,3-BENZOTHIAZOL-3-IUM-2-YL)ETHENYL]-6-((E)-2-[3-ETHYL-1,3-BENZOTHIAZOL-2(3H)-YLIDENE]ETHYLIDENE)-4-METHYL-1-CYCLOHEXEN-1-YL)OXY]-1-PROPANESULFONATE
- CAS:
- MF:C32H36N2O4S3
- Chemical Name:Bimatoprost Impurity 15
- CAS:
- MF:
- Structure:
- Chemical Name:Bisoprolol Impurity 9
- CAS:59383-52-7
- MF:C15H25NO3
- Chemical Name:Empagliflozin Impurity 87
- CAS:
- MF:
- Structure:
- Chemical Name:Aztreonam Impurities 06
- CAS:730928-60-6
- MF:C26H34N10O16S4
- Structure:
- Chemical Name:Lenvatinib Impurity LFZZ-9
- CAS:
- MF:C43H38Cl2N8O8
- Chemical Name:Rosuvastatin Impurity 118
- CAS:
- MF:
- Chemical Name:Rosuvastatin Impurity 117
- CAS:
- MF:
- Structure:
- Chemical Name:Cytarabine Impurity 10
- CAS:84902-98-7
- MF:C4H6N2O3
- Chemical Name:Ticagrelor Impurity 108
- CAS:
- MF:
- Structure:
- Chemical Name:4-Piperidinecarboxylic acid, 1-[5-[[[4-(4-chloro-2-thienyl)-5-(4-cyclohexyl-1-piperazinyl)-2-thiazolyl]amino]carbonyl]-3-hydroxy-2-pyridinyl]-
- CAS:1290121-42-4
- MF:C29H35ClN6O4S2
- Structure:
- Chemical Name:1H-Pyrrole-3-methanamine, 1-[(1,6-dihydro-3-pyridinyl)sulfonyl]-5-(2-fluorophenyl)-N-methyl-
- CAS:2416241-95-5
- MF:C17H18FN3O2S