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Pharmaceutical Impurity Reference Standards

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Structure Chemical Name CAS MF
Sugammadex sodium Org197339-1 Impurity Sugammadex sodium Org197339-1 Impurity
Fludarabine EP impurity G Fludarabine EP impurity G 548774-56-7 C10H12ClFN5O6P
Sitagliptin Impurity 12 Sitagliptin Impurity 12 1803026-54-1 C16H12F6N4O
Afatinib impurity 30 Afatinib impurity 30
Avibactam Impurity 45 Avibactam Impurity 45 2064219-20-9 C23H46N4O6S
Butyphthalide impurity 44 Butyphthalide impurity 44 952413-01-3 C13H18O3
Cabozantinib impurity 24 Cabozantinib impurity 24
Celecoxib Impurity 18 Celecoxib Impurity 18 2271123-54-5 C11H9F3O2
Dapoxetine impurity 22 Dapoxetine impurity 22
Febuxostat Impurity 85 Febuxostat Impurity 85
Fosaprepitant Impurity NLS Fosaprepitant Impurity NLS
Irinotecan Impurity 17 HCl Irinotecan Impurity 17 HCl 1332610-75-9 C19H14N2O4
LCZ696(valsartan + sacubitril) impurity 31 LCZ696(valsartan + sacubitril) impurity 31
Lenvatinib Impurity 24 Lenvatinib Impurity 24
Lenvatinib Impurity 30 Lenvatinib Impurity 30
Regorafenib Impurity 22 Regorafenib Impurity 22
Regorafenib Impurity 28 Regorafenib Impurity 28
Sitafloxacin Impurity ZZ-C-01 Sitafloxacin Impurity ZZ-C-01
Tofacitinib Impurity 85 Tofacitinib Impurity 85 2268720-86-9 C20H24ClN5
Tofacitinib Impurity 90 Tofacitinib Impurity 90
Nintedanib Impurity M Nintedanib Impurity M
Citalopram Impurity 14 Citalopram Impurity 14 1470362-85-6 C20H23FN2O2
Eltrombopag Impurity 8 Eltrombopag Impurity 8
Vitexin 2''-O-beta-D-glucoside Vitexin 2''-O-beta-D-glucoside 61360-94-9 C27H30O15
(S)-methyl 2-(2,3-bis(hydroxymethyl)-6,7-dihydrothieno[3,2-c] pyridin-5(4H)-yl)-2-(2-chlorophenyl)acetate (S)-methyl 2-(2,3-bis(hydroxymethyl)-6,7-dihydrothieno[3,2-c] pyridin-5(4H)-yl)-2-(2-chlorophenyl)acetate 1346231-36-4 C18H20ClNO4S
Capecitabine impurity 6 Capecitabine impurity 6
Vilanterol Impurity 25 Vilanterol Impurity 25 1027529-99-2 C13H15NO4
Sugammadex sodium Org139131-1 Impurity Sugammadex sodium Org139131-1 Impurity
Dolutegravir Impurity 16 Dolutegravir Impurity 16 1357289-37-2 C20H19F2N3O5
N - hydroxy Tropisetron Impurity 2 N - hydroxy Tropisetron Impurity 2
Tofacitinib Impurity 98 Tofacitinib Impurity 98
Cabozantinib impurity 30 Cabozantinib impurity 30
Cabozantinib impurity 35 Cabozantinib impurity 35
Carvedilol Impurity DBA Carvedilol Impurity DBA 3258-70-6 C18H23NO4
Pregabalin Impurity 9 Pregabalin Impurity 9 44855-96-1 C5H7NO3
Butyphthalide impurity 50 Butyphthalide impurity 50
Canagliflozin Impurity 40 Canagliflozin Impurity 40
Pralatrexate Impurity 4 Pralatrexate Impurity 4 1445586-42-4 C18H15N5O3
Pralatrexate Impurity 9 Pralatrexate Impurity 9 1548618-61-6 C23H22N6O6
Pitavastatin Impurity 47 Pitavastatin Impurity 47
Lenvatinib Impurity 38 Lenvatinib Impurity 38
Tazobactam Impurity 9 Tazobactam Impurity 9
Doxofylline Impurity 11 Doxofylline Impurity 11 109403-76-1 C15H16N8O4
Doxofylline Impurity 14 Doxofylline Impurity 14
Canagliflozin Impurity 56 Canagliflozin Impurity 56
Canagliflozin Impurity 61 Canagliflozin Impurity 61
Tofacitinib Impurity 107 Tofacitinib Impurity 107
Hydroxychloroquine Impurity K Hydroxychloroquine Impurity K
Levosimendan Impurity 8 Levosimendan Impurity 8 274263-65-9 C14H14N6O2
Cabozantinib impurity R Cabozantinib impurity R
Rotigotine Impurity 4 Rotigotine Impurity 4
Crisaborole Impurity 4 Crisaborole Impurity 4
Crisaborole Impurity 9 Crisaborole Impurity 9
Trifluridine Impurity C Trifluridine Impurity C
Olprinone Impurity 3 Olprinone Impurity 3 1402751-73-8 C14H11N3O3
Olprinone Impurity 8 Olprinone Impurity 8
(R)-9-fluoro-3-methyl-7-oxo-10-(piperazin-1-yl)-2,3-dihydro-7H-[1,4]oxazino[2,3,4-ij]quinoline-6-carboxylic acid hydrochloride (R)-9-fluoro-3-methyl-7-oxo-10-(piperazin-1-yl)-2,3-dihydro-7H-[1,4]oxazino[2,3,4-ij]quinoline-6-carboxylic acid hydrochloride 117707-39-8 C17H18FN3O4
Nicorandil Impurity G Nicorandil Impurity G
Bivalirudin Impurity 3 Bivalirudin Impurity 3 1310025-28-5 C98H138N24O33
Cilastatin Impurity 3 Cilastatin Impurity 3
Solifenacin Impurity 7（Solifenacin EP Impurity D） Solifenacin Impurity 7（Solifenacin EP Impurity D） 2216750-52-4 C31H28N2O
Dyclonine Impurity 2 Dyclonine Impurity 2 66536-15-0 C13H16O2
Cefuroxime Impurity 33 Cefuroxime Impurity 33 929531-94-2 C16H16N4O9S
Ondansetron IMpurity 4 Ondansetron IMpurity 4
MeropeneM iMpurity 3 MeropeneM iMpurity 3
MeropeneM iMpurity 8 MeropeneM iMpurity 8
Metronidazole Impurity 13 Metronidazole Impurity 13 110578-73-9 C6H9N3O3
Eletriptan Impurity 4 Eletriptan Impurity 4 1422285-51-5 C44H50N4O4S2
Afatinib Impurity 51 Afatinib Impurity 51
Afatinib Impurity 66 Afatinib Impurity 66
Brivaracetam Impurity 10 Brivaracetam Impurity 10 60559-16-2 C10H20O2
Cabozantinib Impurity 6 Cabozantinib Impurity 6
Empagliflozin Impurity 59 Empagliflozin Impurity 59
Fulvestrant Impurity 12 Fulvestrant Impurity 12
Linagliptin Impurity 56 Linagliptin Impurity 56
Linagliptin Impurity 61 Linagliptin Impurity 61
Ornidazole Impurity 16 Ornidazole Impurity 16 1565482-62-3 C7H11ClN2O
Oseltamivir Impurity 46 Oseltamivir Impurity 46
Oseltamivir Impurity 53 Oseltamivir Impurity 53
Palbociclib Impurity 66 Palbociclib Impurity 66
Peramivir Impurity 13 Peramivir Impurity 13 2641684-79-7 C13H27ClN4O3
Pimecrolimus Impurity 2 Pimecrolimus Impurity 2
Rosuvastatin Impurity 81 Rosuvastatin Impurity 81
Rosuvastatin Impurity 102 Rosuvastatin Impurity 102
Tazobactam Impurity 14 Tazobactam Impurity 14
Ticagrelor Impurity 124 Ticagrelor Impurity 124
Tofacitinib Impurity 113 Tofacitinib Impurity 113
Voriconazole Impurity 20 Voriconazole Impurity 20
Carbocistein Impurity F Carbocistein Impurity F
Cilastatin EP Impurity B Cilastatin EP Impurity B
Olaparib Impurity 14 Olaparib Impurity 14 2250242-62-5 C36H28F2N6O4
Brimonidine Impurity B Brimonidine Impurity B
Diquafosol Impurity C Diquafosol Impurity C
Bortezomib Impurity 19 Bortezomib Impurity 19
Apixaban Impurity 40 Apixaban Impurity 40
Axitinib Impurity 3 Axitinib Impurity 3
Sofosbuvir Impurity 10 Sofosbuvir Impurity 10
Venlafaxine Impurity 10 Venlafaxine Impurity 10 1997279-63-6 C17H27NO2
Dapoxetine Impurity 3 Dapoxetine Impurity 3
Regorafenib Impurity 16 Regorafenib Impurity 16
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