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Pharmaceutical Impurity Reference Standards
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- Structure:
- Chemical Name:
- Pralatrexate Impurity 8
- CAS:
- 112408-16-9
- MF:
- C8H15NO4
- Chemical Name:
- Pitavastatin Impurity 46
- Chemical Name:
- Canagliflozin Impurity 46
- Chemical Name:
- Lenvatinib Impurity 37
- Chemical Name:
- Sitafloxacin Impurity 20
- Chemical Name:
- posaconazole impurity 66
- Chemical Name:
- Dapoxetine impurity 33
- Chemical Name:
- Budesonide Impurity 4
- Chemical Name:
- Atracurium Impurity 31
- Structure:
- Chemical Name:
- Canagliflozin Impurity 49
- CAS:
- 2243132-56-9
- MF:
- C34H35FO11S
- Chemical Name:
- Canagliflozin Impurity 55
- Chemical Name:
- Rosuvastatin Impurity 74
- Chemical Name:
- Tofacitinib Impurity 106
- Chemical Name:
- Hydroxychloroquine Impurity J
- Chemical Name:
- Levetiracetam Impurity 25
- Chemical Name:
- Levosimendan Impurity 7
- Chemical Name:
- Cabozantinib impurity K
- Chemical Name:
- Crisaborole Impurity 8
- Chemical Name:
- Trifluridine Impurity B
- Chemical Name:
- Rotigotine Impurity
- Structure:
- Chemical Name:
- Olprinone Impurity 2
- CAS:
- 106730-62-5
- MF:
- C14H12N4O2
- Chemical Name:
- Nicorandil Impurity F
- Chemical Name:
- Nicorandil Impurity A
- Chemical Name:
- Evogliptin Impurity 1
- Chemical Name:
- Ondansetron IMpurity 5
- Chemical Name:
- Plerixafor Impurity 1
- Chemical Name:
- MeropeneM iMpurity 7
- Chemical Name:
- Afatinib Impurity 50
- Structure:
- Chemical Name:
- Brexpiprazole Impurity 34
- CAS:
- 2247155-42-4
- MF:
- C25H27N3O4S
- Structure:
- Chemical Name:
- Cabozantinib Impurity 5
- CAS:
- 104330-60-1
- MF:
- C11H12FNO3
- Chemical Name:
- Dronedarone Impurity 9
- Chemical Name:
- Empagliflozin Impurity 58
- Chemical Name:
- Exemestane Impurity 6
- CAS:
- 14895-71-7
- Chemical Name:
- Gadobutrol Impurity 10
- Chemical Name:
- Linagliptin Impurity 55
- Chemical Name:
- Oseltamivir Impurity 52
- Chemical Name:
- Palbociclib Impurity 65
- Chemical Name:
- Pimecrolimus Impurity 1
- Chemical Name:
- Rosuvastatin Impurity 99
- Chemical Name:
- Terbutaline Impurity 18
- Chemical Name:
- Ticagrelor Impurity 123
- Structure:
- Chemical Name:
- Tofacitinib Impurity 112
- CAS:
- 2179757-75-4
- MF:
- C12H19N3O2
- Chemical Name:
- Trelagliptin Impurity 42
- Chemical Name:
- Carbocistein Impurity E
- Structure:
- Chemical Name:
- Tolvaptan Impurity 35
- CAS:
- 1316312-24-9
- MF:
- C10H10ClN
- Chemical Name:
- Erythromycin Impurity F
- Chemical Name:
- Apixaban Impurity 39
- Chemical Name:
- Aztreonam Impurity 1
- Chemical Name:
- Axitinib Impurity 1
- Chemical Name:
- Aprepitant Impurity 15
- Structure:
- Chemical Name:
- Trelagliptin Impurity 17
- CAS:
- 865759-02-0
- MF:
- C17H20BrFN4O2
- Chemical Name:
- Dapoxetine Impurity 1
- CAS:
- 2825577-69-1
- Chemical Name:
- Regorafenib Impurity 15
- CAS:
- 3083426-64-3
- Chemical Name:
- Flomoxef Impurity 2
- Structure:
- Chemical Name:
- IMatinib iMpurity
- CAS:
- 152459-96-6
- MF:
- C24H21N5O
- Structure:
- Chemical Name:
- (2R,3R,4R,5S,6R)-2-(acetoxyMethyl)-6-(3-((5-(4-fluorophenyl)thiophen-2-yl)Methyl)-4-Methylphenyl)tetrahydro-2H-pyran-3,4,5-triyl triacetate
- CAS:
- 2803372-74-7
- MF:
- C32H33FO9S
- Structure:
- Chemical Name:
- 1,2-BenzenedicarboxaMide, N1,N2-bis[[(5S)-2-oxo-3-[4-(3-oxo-4-Morpholinyl)phenyl]-5-oxazolidinyl]Methyl]-
- CAS:
- 1365267-36-2
- MF:
- C36H36N6O10
- Structure:
- Chemical Name:
- 2-QuinazolineMethanol, 4-Methyl-
- CAS:
- 13535-91-6
- MF:
- C10H10N2O
- Structure:
- Chemical Name:
- 5-(2,2-diMethyl-4H-benzo[d][1,3]dioxin-6-yl)oxazolidin-2-one
- CAS:
- 452340-96-4
- MF:
- C13H15NO4
- Structure:
- Chemical Name:
- alpha-(Dimethylaminomethyl)-alpha-ethylbenzyl alcohol hydrochloride
- CAS:
- 104743-23-9
- MF:
- C12H20ClNO
- Structure:
- Chemical Name:
- N-[6,9-Dihydro-6-oxo-9-[[2-(1-oxopropoxy)-1-[(1-oxopropoxy)methyl]ethoxy]methyl]-1H-purin-2-yl]propanamide
- CAS:
- 177216-32-9
- MF:
- C18H25N5O7
- Structure:
- Chemical Name:
- 5-Bromo-1-(4-fluorophenyl)-1,3-dihydro-N,N-dimethyl-1-isobenzofuranpropanamine ethanedioate (1:1)
- CAS:
- 64372-43-6
- MF:
- C21H23BrFNO5
- Structure:
- Chemical Name:
- (E)-2-Methyl-4-(4-(2-Methyl-5,10-dihydro-4H-benzo[b]thieno[2,3-e][1,4]diazepin-4-yl)piperazin-1-yl)-10H-benzo[b]thieno[2,3-e][1,4]diazepine
- CAS:
- 1070876-09-3
- MF:
- C28H26N6S2
- Structure:
- Chemical Name:
- (1S,2S,3R,5S)-PinanediolN-BOC-L-phenylalanine-L-leucine boronate
- CAS:
- 1187479-72-6
- MF:
- C29H45BN2O5
- Structure:
- Chemical Name:
- Posaconazole iMpurity 7
- CAS:
- 2180759-84-4
- MF:
- C37H42F2N8O4
- Structure:
- Chemical Name:
- Intedanib Impurity
- CAS:
- 2243396-74-7
- MF:
- C31H32N6O6
- Structure:
- Chemical Name:
- (+/-)-tert-Butyl 6-Chloro-5-hydroxy-3-oxohexanoate
- CAS:
- 319924-73-7
- MF:
- C10H17ClO4
- Structure:
- Chemical Name:
- (R)-2-(2-aminothiazol-4-yl)-N-(2-(2-((2-hydroxy-2-phenylethyl)amino)ethyl)phenyl)acetamide
- CAS:
- 1684452-80-9
- MF:
- C21H24N4O2S
- Structure:
- Chemical Name:
- 1,4-Dihydro-2,6-dimethyl-4-(3-nitrophenyl)-3,5-pyridinedicarboxylic Acid 3-[2-[(3,3-Diphenylpropyl)methylamino]-1,1-dimethylethyl] 5-ethyl Ester Hydrochloride
- CAS:
- 210579-71-8
- MF:
- C37H44ClN3O6
- Structure:
- Chemical Name:
- 2-chloro-5-(2-fluorophenyl)-1H-pyrrole-3-carbaldehyde
- CAS:
- 2169267-53-0
- MF:
- C11H7ClFNO
- Structure:
- Chemical Name:
- 4-(4-(4-(4-(((3S,5S)-5-((1H-1,2,4-triazol-1-yl)methyl)-5-(2,4-difluorophenyl)tetrahydrofuran-3-yl)methoxy)phenyl)piperazin-1-yl)phenyl)-1-((2R,3S)-2-hydroxypentan-3-yl)-1H-1,2,4-triazol-5(4H)-one
- CAS:
- 2243785-99-9
- MF:
- C37H42F2N8O4
- Structure:
- Chemical Name:
- 5-(2-fluorophenyl)-N-methyl-1-(pyridin-3-ylsulfonyl)-1H-pyrrole-3-carboxamide
- CAS:
- 2054536-04-6
- MF:
- C17H14FN3O3S
- Chemical Name:
- Ozagrel Impurity 10
- Structure:
- Chemical Name:
- tris((5-(2-fluorophenyl)-1H-pyrrol-3-yl)methyl)amine
- MF:
- C33H27F3N4
- Chemical Name:
- Esmolol impurity C
- Chemical Name:
- Varenicline Impurity 2
- Chemical Name:
- Topiroxostat Impurity 5
- Chemical Name:
- Everolimus Impurity 5
- Chemical Name:
- Ibrutinib Impurity 3
- Chemical Name:
- Canagliflozin Impurity 9
- Structure:
- Chemical Name:
- Clopidogrel Impurity 14
- MF:
- C15H14ClNO2S
- Chemical Name:
- Febuxostat Impurity 53
- Chemical Name:
- Cefodizime Impurity C
- Chemical Name:
- Riociguat IMpurtiy F
- Chemical Name:
- Acrivastine Impurity 1
- Structure:
- Chemical Name:
- Nifedipine impurity 10
- CAS:
- 10323-98-5
- MF:
- C13H13NO3
- Chemical Name:
- Cefminox Sodium impurity E
- Chemical Name:
- Clindamycin Impurity D
- Chemical Name:
- Fasudil iMpurity C
- Chemical Name:
- Cefminox Impurity D
- Structure:
- Chemical Name:
- SORAFENIB N-OXIDE
- CAS:
- 583840-03-3
- MF:
- C21H16ClF3N4O4
- Structure:
- Chemical Name:
- 2H-3-Benzazepin-2-one, 3-[3-[[[(7S)-3,4-dimethoxybicyclo[4.2.0]octa-1,3,5-trien-7-yl]methyl]methylamino]propyl]-1,3,4,5-tetrahydro-5-hydroxy-7,8-dimethoxy-
- CAS:
- 2253977-80-7
- MF:
- C27H36N2O6
- Structure:
- Chemical Name:
- Benzeneacetic acid, 3-[1-hydroxy-4-[4-(hydroxydiphenylmethyl)-1-piperidinyl]butyl]-α,α-dimethyl-, methyl ester
- CAS:
- 1187954-56-8
- MF:
- C33H41NO4
- Structure:
- Chemical Name:
- N-[2-(methylthio)ethyl]-2-[(3,3,3-trifluoropropyl)thio]-Adenosine 5''-(hydrogen P-1H-imidazol-1-ylphosphonate)
- CAS:
- 1054332-15-8
- MF:
- C19H25F3N7O6PS2
- Structure:
- Chemical Name:
- N-[5-(4-Bromophenyl)-6-[2-(2-pyrimidinyloxy)ethoxy]-4-pyrimidinyl]-N''-propyl-sulfamide
- CAS:
- 2211059-00-4
- MF:
- C19H21BrN6O4S
- Chemical Name:
- Isomer 1 of Tazobactam Impurity 3
- Chemical Name:
- Ceftiofur USP Impurity I
- Chemical Name:
- Cephalexin Degradation Impurity A
- Chemical Name:
- Azlocillin Impurity 8
- Chemical Name:
- Pregabalin-8687（mixture of 4 isomers）