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Pharmaceutical Impurity Reference Standards
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- 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
- CAS:
- MF:C46H96Cl12N12
- Chemical Name:Entacapone Impurity 6
- CAS:
- MF:
- 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
- CAS:
- MF:
- Chemical Name:Atracurium Impurity O
- CAS:
- MF:
- Chemical Name:Emtricitabine Impurity F
- CAS:
- MF:
- Structure:
- Chemical Name:Pitavastatin Impurity 44
- CAS:586966-55-4
- MF:C29H32FNO4
- Chemical Name:Tirofiban Impurity F
- CAS:
- MF:
- Chemical Name:Tofacitinib Impurity 74
- CAS:
- MF:
- Chemical Name:Tofacitinib Impurity 83
- CAS:
- MF:
- Structure:
- Chemical Name:Apixaban Impurity 31
- CAS:2458079-10-0
- MF:C27H30N4O6
- Chemical Name:Apixaban Impurity 38
- CAS:
- MF:
- Chemical Name:Atracurium Impurity 4
- CAS:
- MF:
- Chemical Name:Aztreonam Impurity 4
- CAS:
- MF:
- Structure:
- Chemical Name:Bendamustine Impurity 29
- CAS:847588-86-7
- MF:C19H22N6
- Chemical Name:Bendamustine Impurity 35
- CAS:
- MF:
- Chemical Name:Cefoxitin Impurity 3
- CAS:
- MF:
- Chemical Name:Doripenem Impurity 5
- CAS:
- MF:
- Chemical Name:Erlotinib Impurity 47
- CAS:
- MF:
- Structure:
- Chemical Name:Etoposide EP Impurity A
- CAS:124151-67-3
- MF:C37H38O15
- Chemical Name:Lamivudine Impurity 5
- CAS:
- MF:
- Structure:
- Chemical Name:Lercanidipine Impurity 25
- CAS:100427-22-3
- MF:C36H41N3O6
- Chemical Name:Oseltamivir Impurity 30
- CAS:
- MF:
- Structure:
- Chemical Name:Pitavastatin Impurity 25
- CAS:1356998-79-2
- MF:C19H16FN
- Chemical Name:Rocuronium Bromide Impurity 16
- CAS:
- MF:
- Chemical Name:Rocuronium Bromide Impurity 25
- CAS:
- MF:
- 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
- CAS:
- MF:C16H19N3O5S
- Structure:
- Chemical Name:Amoxicillin Impurity Z
- CAS:
- MF:C16H19N3O5S
- Chemical Name:Atracurium Impurity P
- CAS:
- MF:
- Chemical Name:Atracurium Impurity U
- CAS:
- MF:
- Chemical Name:Ceftazidime side chain Impurity
- CAS:
- MF:
- Chemical Name:Linagliptin Impurity 35
- CAS:
- MF:
- Chemical Name:Ropivacaine Impurity 1
- CAS:
- MF:
- Chemical Name:Ropivacaine Impurity 46
- CAS:
- MF:
- Chemical Name:Sugammadex sodium Org199425-1 Impurity
- CAS:
- MF:
- Chemical Name:Sugammadex sodium Org244517-1 Impurity
- CAS:
- MF:
- 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
- CAS:
- 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
- CAS:
- MF:
- Structure:
- Chemical Name:Butyphthalide impurity 36
- CAS:2245275-82-3
- MF:C15H18O5
- Chemical Name:Canagliflozin Impurity 32
- CAS:
- MF:
- Chemical Name:Carbocistein Impurity B
- CAS:
- MF:
- Structure:
- Chemical Name:Celecoxib Impurity 22
- CAS:921617-76-7
- MF:C17H13F3N2O3S
- Chemical Name:Emtricitabine Impurity RRO
- CAS:
- MF:
- Chemical Name:Febuxostat Impurity 84
- CAS:
- MF:
- Chemical Name:Febuxostat Impurity 89
- CAS:
- MF:
- Chemical Name:Gefitinib Impurity T
- CAS:
- MF:
- Chemical Name:Ibrutinib Impurity 16
- CAS:
- MF:
- Chemical Name:LCZ696(valsartan + sacubitril) impurity 35
- CAS:
- MF:
- Chemical Name:Lenvatinib Impurity 15
- CAS:
- MF:
- Chemical Name:Montelukast sodium impurity I
- CAS:
- MF:
- Chemical Name:Moxifloxacin Impurity 48
- CAS:
- MF:
- Chemical Name:Olsalazine Impurity A
- CAS:
- MF:
- Chemical Name:Ozagrel impurity E
- CAS:
- MF:
- Chemical Name:Solifenacin impurity 22
- CAS:
- MF:
- Chemical Name:Sunitinib Impurity YDEJ
- CAS:
- MF:
- Chemical Name:Tofacitinib Impurity 94
- CAS:
- MF:
- Chemical Name:Topiroxostat Impurity 31
- CAS:
- MF:
- Chemical Name:Sitafloxacin Impurity 9 Sodium Salt
- CAS:
- MF:
- 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
- CAS:
- MF:
- Structure:
- Chemical Name:(1r,4r)-4-((2-amino-4-bromobenzyl)amino)cyclohexan-1-ol hydrochloride
- CAS:
- MF:C13H20BrClN2O
- Chemical Name:Aztreonam Impurity 6
- CAS:
- MF:
- Structure:
- Chemical Name:Cetirizine impurity 14
- CAS:
- MF:C21H25ClN2O3
- Structure:
- Chemical Name:Vitamin B1 Impurity 1
- CAS:
- MF:C12H17ClN4OS
- Structure:
- Chemical Name:Diquafosol Impurity UP2U
- CAS:221169-12-6
- MF:C18H25N4NaO17P2
- Structure:
- Chemical Name:Pemetrexed disodium Impurity
- CAS:17405-00-4
- MF:C7H5ClN2O2
- Chemical Name:Vonoprazan Impurity Z-1
- CAS:
- MF:
- Structure:
- Chemical Name:Olanzapine impurity M
- CAS:
- MF:C17H20N4S
- Structure:
- Chemical Name:Afatinib impurity 41
- CAS:69169-63-7
- MF:C5H9NO2
- Structure:
- Chemical Name:Vildagliptin Impurity 38
- CAS:956508-24-0
- MF:C10H16N2O3
- Chemical Name:Tazobactam Impurity C
- CAS:
- MF:
- Chemical Name:Palonosetron Impurity TM1-YA
- CAS:
- MF:
- Chemical Name:Pitavastatin Impurity 33
- CAS:
- MF:
- Chemical Name:Pralatrexate Impurity 14
- CAS:
- MF:
- Chemical Name:Pitavastatin Impurity 51
- CAS:
- MF:
- Chemical Name:Pitavastatin Impurity 59
- CAS:
- MF:
- Chemical Name:Lenvatinib Impurity 42
- CAS:
- MF:
- Chemical Name:Tazobactam Impurity 8
- CAS:
- MF:
- Chemical Name:Prednicarbate Impurity B
- CAS:
- MF:
- Chemical Name:Doxofylline Impurity 13
- CAS:
- MF:
- Chemical Name:Afatinib impurity 46
- CAS:
- MF:
- Chemical Name:Afatinib impurity 46
- CAS:
- MF:
- Chemical Name:Canagliflozin Impurity 60
- CAS:
- MF:
- Chemical Name:Canagliflozin Impurity 65
- CAS:
- MF:
- Chemical Name:Rosuvastatin Impurity 75
- CAS:
- MF:
- Chemical Name:Acyclovir Impurity 11
- CAS:
- MF: