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Pharmaceutical Impurity Reference Standards
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- Structure:
- Chemical Name:
- Voriconazole Impurity 19
- CAS:
- 321589-01-9
- MF:
- C26H28F3N5O4S
- Chemical Name:
- Salbutamol Impurity 38
- Chemical Name:
- Gadobutrol Impurity 4 (Gd-DOTA)
- Chemical Name:
- Losartan Impurity 3
- Structure:
- Chemical Name:
- methyl 2-((4R,6R)-6-(2-(2-(4-fluorophenyl)-5-isopropyl-3-phenyl-4- (phenylcarbamoyl)-1H-pyrrol-1-yl)ethyl)-2,2-dimethyl-1,3-dioxan-4- yl)acetate
- CAS:
- 1353049-81-6
- MF:
- C37H41FN2O5
- Chemical Name:
- Cilastatin EP Impurity G
- Structure:
- Chemical Name:
- Rosuvastatin Impurity 122
- CAS:
- 135999-58-5
- MF:
- C6H7ClO3
- Chemical Name:
- Anastrozole Impurity IV
- Chemical Name:
- NA
- Chemical Name:
- NA
- Chemical Name:
- Tinidazole Impurity B
- Structure:
- Chemical Name:
- Apremilast Impurity 19
- CAS:
- 2201974-01-6
- MF:
- C22H24N2O7S
- Structure:
- Chemical Name:
- Nimodipine Metabolite 3
- CAS:
- 82219-48-5
- MF:
- C20H22N2O7
- Structure:
- Chemical Name:
- N-DEMETHYLROXITHROMYCIN
- CAS:
- 118267-18-8
- MF:
- C40H74N2O15
- Structure:
- Chemical Name:
- (E)-4-BROMO-N,N-DIMETHYLBUT-2-ENAMIDE
- CAS:
- 137131-09-0
- MF:
- C6H10BrNO
- Structure:
- Chemical Name:
- Almotriptan Impurity 1
- CAS:
- 334981-13-4
- MF:
- C17H25N3O3S
- Structure:
- Chemical Name:
- Amlodipine Impurity 33
- MF:
- C26H31ClN2O8S
- Chemical Name:
- Erlotinib Impurity 36 HCl
- Structure:
- Chemical Name:
- Rasagiline Impurity 6 HCl
- CAS:
- 138911-07-6
- MF:
- C9H11NO
- Structure:
- Chemical Name:
- Taladafil impurity
- CAS:
- 1356345-67-9
- MF:
- C23H23N3O4
- Structure:
- Chemical Name:
- Mirabegron 2-Oxo Impurity
- CAS:
- 1684453-05-1
- MF:
- C21H22N4O3S
- Structure:
- Chemical Name:
- Riluzole 4-Bromo Impurity
- CAS:
- 144631-82-3
- MF:
- C8H4BrF3N2OS
- Structure:
- Chemical Name:
- Furosemide Impurity 8
- CAS:
- 41332-59-6
- MF:
- C7H4Cl2O5S
- Structure:
- Chemical Name:
- Irinotecan Impurity 29
- CAS:
- 797762-11-9
- MF:
- C22H24N2O4
- Chemical Name:
- Empagliflozin Impurity 41
- Chemical Name:
- Empagliflozin Impurity 47
- Structure:
- Chemical Name:
- Irbesartan
- CAS:
- 141745-36-0
- MF:
- C23H26N6O
- Structure:
- Chemical Name:
- Aprepitant
- CAS:
- 170902-80-4
- MF:
- C20H18F7NO2
- Structure:
- Chemical Name:
- Pranoprofen Impurity 5
- CAS:
- 145986-74-9
- MF:
- C16H15NO3
- Structure:
- Chemical Name:
- Fluconazole Impurity
- CAS:
- 1609495-95-5
- MF:
- C15H14FN9O
- Structure:
- Chemical Name:
- 1,4-bis(4-((1,4,8,11-tetraazacyclotetradecan-1-yl)methyl)benzyl)- 1,4,8,11-tetraazacyclotetradecane dodecahydrochloride
- MF:
- C46H96Cl12N12
- Chemical Name:
- Entacapone Impurity 6
- Structure:
- Chemical Name:
- Apremilast Impurity 15
- CAS:
- 2096492-41-8
- MF:
- C22H26N2O8S
- Structure:
- Chemical Name:
- Erythromycin EP Impurity L
- CAS:
- 127955-44-6
- MF:
- C37H65NO14
- Structure:
- Chemical Name:
- Levetiracetam impurity 1
- CAS:
- 1342566-28-2
- MF:
- C8H16N2O3
- Structure:
- Chemical Name:
- 2-(3-(Trifluoromethyl)-5,6-dihydro-[1,2,4]triazolo[4,3-a]pyrazin-7(8H)-yl)acetohydrazide hydrochloride
- CAS:
- 1485732-85-1
- MF:
- C8H11F3N6O
- Structure:
- Chemical Name:
- (R)-N-(1-(3-(2-cyano-5-fluorobenzyl)-1-methyl-2,6-dioxo- 1,2,3,6-tetrahydropyrimidin-4-yl)piperidin-3-yl)formamide
- CAS:
- 2087874-91-5
- MF:
- C19H20FN5O3
- Chemical Name:
- Abiraterone Impurity 12
- Chemical Name:
- Atracurium Impurity O
- Chemical Name:
- Emtricitabine Impurity F
- Structure:
- Chemical Name:
- Pitavastatin Impurity 44
- CAS:
- 586966-55-4
- MF:
- C29H32FNO4
- Chemical Name:
- Tirofiban Impurity F
- Chemical Name:
- Tofacitinib Impurity 74
- Chemical Name:
- Tofacitinib Impurity 83
- Structure:
- Chemical Name:
- Apixaban Impurity 31
- CAS:
- 2458079-10-0
- MF:
- C27H30N4O6
- Chemical Name:
- Apixaban Impurity 38
- Chemical Name:
- Atracurium Impurity 4
- Chemical Name:
- Aztreonam Impurity 4
- Structure:
- Chemical Name:
- Bendamustine Impurity 29
- CAS:
- 847588-86-7
- MF:
- C19H22N6
- Chemical Name:
- Bendamustine Impurity 35
- Chemical Name:
- Cefoxitin Impurity 3
- Chemical Name:
- Doripenem Impurity 5
- Chemical Name:
- Erlotinib Impurity 47
- Structure:
- Chemical Name:
- Etoposide EP Impurity A
- CAS:
- 124151-67-3
- MF:
- C37H38O15
- Chemical Name:
- Lamivudine Impurity 5
- Structure:
- Chemical Name:
- Lercanidipine Impurity 25
- CAS:
- 100427-22-3
- MF:
- C36H41N3O6
- Chemical Name:
- Oseltamivir Impurity 30
- Structure:
- Chemical Name:
- Pitavastatin Impurity 25
- CAS:
- 1356998-79-2
- MF:
- C19H16FN
- Chemical Name:
- Rocuronium Bromide Impurity 16
- Chemical Name:
- Rocuronium Bromide Impurity 25
- Structure:
- Chemical Name:
- Telmisartan Impurity 5
- CAS:
- 885046-20-8
- MF:
- C19H19ClN4
- Structure:
- Chemical Name:
- Tinidazole Impurity 2
- CAS:
- 140165-55-5
- MF:
- C6H12N2O4S
- Structure:
- Chemical Name:
- 3-[3-({[(7S)-3,4-dimethoxybicyclo[4.2.0]octa-1,3,5-trien-7-yl]methyl}(methyl)amino)propyl]-7,8-dimethoxy-1,3-dihydro-2H-3-benzazepin-2-one hydrochloride
- CAS:
- 1086026-38-1
- MF:
- C27H34N2O5*ClH
- Structure:
- Chemical Name:
- Amoxicillin Impurity Z
- MF:
- C16H19N3O5S
- Chemical Name:
- Atracurium Impurity P
- Chemical Name:
- Atracurium Impurity U
- Chemical Name:
- Ceftazidime side chain Impurity
- Chemical Name:
- Linagliptin Impurity 35
- Chemical Name:
- Ropivacaine Impurity 1
- Chemical Name:
- Ropivacaine Impurity 46
- Chemical Name:
- Sugammadex sodium Org199425-1 Impurity
- Chemical Name:
- Sugammadex sodium Org244517-1 Impurity
- Structure:
- Chemical Name:
- Terbutaline Impurity 11
- CAS:
- 2387020-93-9
- MF:
- C8H7BrO3
- Structure:
- Chemical Name:
- (2R,3R,4R,5S,6R)-2-(4-chloro-3-(4-(((R)-tetrahydrofuran- 3-yl)oxy)benzyl)phenyl)-6-(hydroxymethyl)tetrahydro-2H- pyran-3,4,5-triol
- MF:
- C23H27ClO7
- Structure:
- Chemical Name:
- Afatinib impurity 34
- CAS:
- 2475095-50-0
- MF:
- C14H7ClF2N4O2
- Structure:
- Chemical Name:
- Avibactam Impurity 39
- CAS:
- 2089462-91-7
- MF:
- C15H22N2O3
- Chemical Name:
- Butyphthalide impurity 28
- Structure:
- Chemical Name:
- Butyphthalide impurity 36
- CAS:
- 2245275-82-3
- MF:
- C15H18O5
- Chemical Name:
- Canagliflozin Impurity 32
- Chemical Name:
- Carbocistein Impurity B
- Structure:
- Chemical Name:
- Celecoxib Impurity 22
- CAS:
- 921617-76-7
- MF:
- C17H13F3N2O3S
- Chemical Name:
- Emtricitabine Impurity RRO
- Chemical Name:
- Febuxostat Impurity 84
- Chemical Name:
- Febuxostat Impurity 89
- Chemical Name:
- Gefitinib Impurity T
- Chemical Name:
- Ibrutinib Impurity 16
- Chemical Name:
- LCZ696(valsartan + sacubitril) impurity 35
- Chemical Name:
- Lenvatinib Impurity 15
- Chemical Name:
- Montelukast sodium impurity I
- Chemical Name:
- Moxifloxacin Impurity 48
- Chemical Name:
- Olsalazine Impurity A
- Chemical Name:
- Ozagrel impurity E
- Chemical Name:
- Solifenacin impurity 22
- Chemical Name:
- Sunitinib Impurity YDEJ
- Chemical Name:
- Tofacitinib Impurity 94
- Chemical Name:
- Topiroxostat Impurity 31
- Chemical Name:
- Sitafloxacin Impurity 9 Sodium Salt
- Structure:
- Chemical Name:
- Azilsartan Impurity 11
- CAS:
- 91526-16-8
- MF:
- C12H12O6S
- Structure:
- Chemical Name:
- Pitavastatin Impurity 18 Sodium Salt
- CAS:
- 1611499-16-1
- MF:
- C25H24FNO5
- Chemical Name:
- Saxagliptin Impurity 10