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Pharmaceutical Impurity Reference Standards

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Structure Chemical Name CAS MF
Pregabalin Lactam (S)-Isomer Lactose Adduct Pregabalin Lactam (S)-Isomer Lactose Adduct 466678-44-4 C20H35NO11
Ertapenem Impurity Pro-maba Ertapenem Impurity Pro-maba 724700-26-9 C12H14N2O3
Empagliflozin Impurity 22 Empagliflozin Impurity 22
Empagliflozin Impurity 35 Empagliflozin Impurity 35 1459754-40-5 C13H8ClIO2
tirofiban tirofiban 464175-13-1 C9H18ClN
1,8-bis(4-((1,4,8,11-tetraazacyclotetradecan-4,8,11-trifluoroacetyl- 1-yl)methyl)benzyl)-4,11-difluoroacetyl-1,4,8,11- tetraazacyclotetradecane 1,8-bis(4-((1,4,8,11-tetraazacyclotetradecan-4,8,11-trifluoroacetyl- 1-yl)methyl)benzyl)-4,11-difluoroacetyl-1,4,8,11- tetraazacyclotetradecane
Fulvestrant Impurity 4 Fulvestrant Impurity 4 1621885-82-2 C30H44O6S
Clopidogrel Clopidogrel 1360923-54-1 C16H16ClNO3S
Ozagrel-015 Ozagrel-015 1332370-00-9 C10H10O3
Piperacillin Sulfoxide Piperacillin Sulfoxide 67275-27-8 C23H27N5O8S
Budesonide Impurity 11 Budesonide Impurity 11 39672-76-9 C21H26O5
1,8-bis(4-((1,4,8,11-tetraazacyclotetradecan-1-yl)methyl) benzyl)-1,4,8,11-tetraazacyclotetradecane dodecahydrochloride 1,8-bis(4-((1,4,8,11-tetraazacyclotetradecan-1-yl)methyl) benzyl)-1,4,8,11-tetraazacyclotetradecane dodecahydrochloride 2173049-85-7 C46H85ClN12
Mirabegron Impurity 26 Mirabegron Impurity 26 91828-74-9 C8H9N3O4
Alosetron Impurity 1 Alosetron Impurity 1 1011293-30-3 C17H16N4O2
2-(3-cyano-4-isobutoxyphenyl)-N,N,4-trimethylthiazole-5- carboxamide 2-(3-cyano-4-isobutoxyphenyl)-N,N,4-trimethylthiazole-5- carboxamide 1380049-45-5 C18H21N3O2S
Acarbose Impurity F Acarbose Impurity F
Oseltamivir Impurity 10 Oseltamivir Impurity 10 2081110-43-0 C16H28N2O4
Pitavastatin Impurity 41 Pitavastatin Impurity 41
Rivaroxaban Impurity 14 Rivaroxaban Impurity 14 1429334-02-0 C15H21N3O4
Ticagrelor Impurity 69 Ticagrelor Impurity 69
Tofacitinib Impurity 71 Tofacitinib Impurity 71
Tofacitinib Impurity 79 Tofacitinib Impurity 79
Topiroxostat Impurity 5 Topiroxostat Impurity 5 2050015-91-1 C7H6N4O
Canagliflozin-10 Canagliflozin-10 2161394-94-9 C24H25FO5S
2-amino-N-(2-methylphenyl)-5-thiazolecarboxamide 2-amino-N-(2-methylphenyl)-5-thiazolecarboxamide 1184914-03-1 C11H11N3OS
Afatinib Impurity 23 Afatinib Impurity 23 1314777-66-6 C8H4FN3O3
Atracurium Impurity 25 Atracurium Impurity 25 86682-55-5 C20H25NO5
Aztreonam Impurity 7 Aztreonam Impurity 7
Canagliflozin Impurity 43 Canagliflozin Impurity 43
Carvedilol Impurity 2 Carvedilol Impurity 2 1198090-71-9 C18H17NO3
Clotrimazole Impurity 2 Clotrimazole Impurity 2
Dapagliflozin Impurity 33 Dapagliflozin Impurity 33
Erlotinib Impurity 56 Erlotinib Impurity 56
Moxifloxacin Impurity 8 Moxifloxacin Impurity 8 1829588-19-3 C21H25N3O5
Olaparib Impurity 30 Olaparib Impurity 30 1460272-52-9 C24H21FN4O4
Pitavastatin Impurity 27 Pitavastatin Impurity 27
Pramipexole Impurity 24 Pramipexole Impurity 24
Rocuronium Bromide Impurity 22 Rocuronium Bromide Impurity 22
Tolterodine Impurity 1 Tolterodine Impurity 1 88407-28-7 C22H31NO
Voriconazole Impurity 7 Voriconazole Impurity 7 239807-04-6 C16H14F3N5O
Apremilast Impurity SJM Apremilast Impurity SJM
Aprepitant Impurity 28 Aprepitant Impurity 28
AZD9291 Osimertinib Impurity 3 AZD9291 Osimertinib Impurity 3
Dextrorotation lansoprazole Impurity K Dextrorotation lansoprazole Impurity K
Doxofylline Impurity A Doxofylline Impurity A
lansoprazole Impurity 24 lansoprazole Impurity 24
lansoprazole Impurity 30 lansoprazole Impurity 30
meta-dyhydroxy Sugammadex sodium Impurity 2 meta-dyhydroxy Sugammadex sodium Impurity 2
Palbociclib Impurity 29 Palbociclib Impurity 29
Palbociclib Impurity 34 Palbociclib Impurity 34
Ropivacaine Impurity 38 Ropivacaine Impurity 38
Ropivacaine Impurity 43 Ropivacaine Impurity 43
Sugammadex sodium Decomposition process Impurity 1 Sugammadex sodium Decomposition process Impurity 1
Sugammadex sodium Org198786-1 Impurity Sugammadex sodium Org198786-1 Impurity
Sugammadex sodium starting material Impurity 1 Sugammadex sodium starting material Impurity 1
Fludarabine EP impurity H Fludarabine EP impurity H 548774-57-8 C10H10FN5O3
Afatinib impurity 31 Afatinib impurity 31
Butyphthalide impurity 30 Butyphthalide impurity 30
Cabozantinib impurity S Cabozantinib impurity S
Canagliflozin Isomer Impurity 1 Canagliflozin Isomer Impurity 1
Celecoxib Impurity 19 Celecoxib Impurity 19 C17H14F3N3O2S
Febuxostat Impurity 81 Febuxostat Impurity 81
Gefitinib Impurity Q Gefitinib Impurity Q
Irinotecan Impurity 20 HCl Irinotecan Impurity 20 HCl 870527-52-9 C20H20N2O4
LCZ696(valsartan + sacubitril) impurity 32 LCZ696(valsartan + sacubitril) impurity 32
Lenvatinib Impurity 25 Lenvatinib Impurity 25
Leosimendan azide Impurity Leosimendan azide Impurity
Regorafenib Impurity 23 Regorafenib Impurity 23
Regorafenib Impurity 31 Regorafenib Impurity 31
Sitafloxacin Impurity XT-D-01 Sitafloxacin Impurity XT-D-01
Sitafloxacin Impurity ZZ-E-01 Sitafloxacin Impurity ZZ-E-01
Tofacitinib Impurity 86 Tofacitinib Impurity 86
Tofacitinib Impurity 91 Tofacitinib Impurity 91
Gefitinib impurity N Gefitinib impurity N
Docetaxel Impurity 24 Docetaxel Impurity 24 1217248-58-2 C29H34O9
Olopatadine Impurity 2 Olopatadine Impurity 2 56427-76-0 C19H18O4
Pitavastatin Impurity 24 Sodium Salt Pitavastatin Impurity 24 Sodium Salt 1980814-90-1 C25H24FNO6
(3S,5S)-tert-butyl 7-(2-(4-fluorophenyl)-5-isopropyl-3-phenyl-4-(phenylcarbamoyl)-1H-pyrrol-1-yl)-3,5-dihydroxyheptanoate (3S,5S)-tert-butyl 7-(2-(4-fluorophenyl)-5-isopropyl-3-phenyl-4-(phenylcarbamoyl)-1H-pyrrol-1-yl)-3,5-dihydroxyheptanoate 1428118-12-0 C37H43FN2O5
Ibubinib impurity Ibubinib impurity
Amoxicillin EP Impurity K Amoxicillin EP Impurity K C16H19N3O5S
Oseltamivir Impurity Oseltamivir Impurity 212504-89-7 C14H26N2O3
Tofacitinib Impurity QTD Tofacitinib Impurity QTD
LCZ696（valsartan + sacubitril） impurity 26 LCZ696（valsartan + sacubitril） impurity 26
Cabozantinib impurity 31 Cabozantinib impurity 31
Carvedilol Impurity COH Carvedilol Impurity COH 51997-50-3 C15H13NO2
Pregabalin Impurity 10 Pregabalin Impurity 10 69680-50-8 C7H11NO3
Butyphthalide impurity 51 Butyphthalide impurity 51
Canagliflozin Impurity 41 Canagliflozin Impurity 41
Pitavastatin Impurity 36 Pitavastatin Impurity 36
Pralatrexate Impurity 11 Pralatrexate Impurity 11
Pralatrexate Impurity 16 Pralatrexate Impurity 16
Pitavastatin Impurity 48 Pitavastatin Impurity 48
Pitavastatin Impurity 53 Pitavastatin Impurity 53
Lenvatinib Impurity 39 Lenvatinib Impurity 39 2664101-53-3
Tazobactam Impurity 10 Tazobactam Impurity 10
Crisaborole Impurity 1 Crisaborole Impurity 1
Canagliflozin Impurity 57 Canagliflozin Impurity 57
Canagliflozin Impurity 62 Canagliflozin Impurity 62
Apixaban Degradation of Impurity Apixaban Degradation of Impurity
Levetiracetam Impurity 22 Levetiracetam Impurity 22
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