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Pharmaceutical Impurity Reference Standards

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Structure Chemical Name CAS MF
Moxifloxacin Impurity 46 Moxifloxacin Impurity 46 1932499-97-2 C8H16N2
Posaconazole Impurity 43 Posaconazole Impurity 43 1428118-40-4 C13H20N2O2
Empagliflozin Impurity 32 Empagliflozin Impurity 32 1620758-25-9 C24H29ClO8
Sugammadex Impurity 16 Sugammadex Impurity 16 2412952-97-5 C69H108BrNaO46S7
1,1'-(1,4,8,11-tetraazacyclotetradecane-1,11-diyl)bis(2,2,2- trifluoroethan-1-one) dihydrochloride 1,1'-(1,4,8,11-tetraazacyclotetradecane-1,11-diyl)bis(2,2,2- trifluoroethan-1-one) dihydrochloride C14H24Cl2F6N4O2
9-fluoro-6,7-dihydro-5-methyl-1-oxo-8-(4-oxo-1,2,3,4-tetrahydro-1-pyridyl)-1H,5H-benzo[i,j]quinolizine-2-carboxylic acid 9-fluoro-6,7-dihydro-5-methyl-1-oxo-8-(4-oxo-1,2,3,4-tetrahydro-1-pyridyl)-1H,5H-benzo[i,j]quinolizine-2-carboxylic acid 130539-72-9 C19H17FN2O4
Clopidogrel Clopidogrel 444728-15-8 C15H15ClN2OS
(3R,5S)-5-((S)-8-fluoro-4-isopropyl-2-(N-methylmethyl sulfonamido)-5,6-dihydrobenzo[h]quinazolin-6-yl)-3,5- dihydroxypentanoate calcium(II) (3R,5S)-5-((S)-8-fluoro-4-isopropyl-2-(N-methylmethyl sulfonamido)-5,6-dihydrobenzo[h]quinazolin-6-yl)-3,5- dihydroxypentanoate calcium(II) 854898-50-3 C44H54CaF2N6O12S2
Arbidol Impurity I Arbidol Impurity I 153633-10-4 C22H24Br2N2O3S
Palonosetron Impurity 9 Palonosetron Impurity 9 2216755-75-6 C18H24N2O
Zopiclone Impurity 12 Zopiclone Impurity 12
Selexipag impurity Selexipag impurity
2-(3-formyl-4-isobutoxyphenyl)-N,N,4-trimethylthiazole- 5-carboxamide 2-(3-formyl-4-isobutoxyphenyl)-N,N,4-trimethylthiazole- 5-carboxamide 1380049-42-2 C18H22N2O3S
Benidipine Impurity V Benidipine Impurity V
Cefazolin USP Impurity L-△2 Cefazolin USP Impurity L-△2
Fluconazole Impurity M Fluconazole Impurity M C13H12F2N6O
Nicorandil Impurity 14 Nicorandil Impurity 14
Ticagrelor Impurity 64 Ticagrelor Impurity 64
Ticagrelor Impurity 71 Ticagrelor Impurity 71
Tolterodine EP Impurity G Tolterodine EP Impurity G 1554029-91-2 C22H32NO2+
Topiroxostat Impurity 23 Topiroxostat Impurity 23 2044706-78-5 C20H12N10
Saxagliptin Impurity 34 Saxagliptin Impurity 34 2173146-31-9 C17H25NO5
Afatinib Impurity 25 Afatinib Impurity 25
Bendamustine Impurity 34 Bendamustine Impurity 34
Canagliflozin Impurity 29 Canagliflozin Impurity 29
Cefazolin Impurity 6 Cefazolin Impurity 6 66636-33-7 C14H20N4O3S3Si
Ciprofloxacin Impurity 5 Ciprofloxacin Impurity 5 C17H18FN3O3
Erlotinib Impurity 53 Erlotinib Impurity 53 749181-30-4 C21H25N3O4
Etoposide Impurity 4 Etoposide Impurity 4 101648-60-6 C35H32Cl6O16
Olaparib Impurity 25 Olaparib Impurity 25 1423030-11-8 C16H9FO4
Olaparib Impurity 32 Olaparib Impurity 32
Oseltamivir Impurity 23 Oseltamivir Impurity 23 2241125-39-1 C9H16N2O3
Rosuvastatin Impurity 85 Rosuvastatin Impurity 85
Amoxicillin Impurity T Amoxicillin Impurity T C16H19N3O5S
Apremilast Impurity OH Apremilast Impurity OH
Atracurium Impurity T Atracurium Impurity T
Dextrorotation lansoprazole Impurity H Dextrorotation lansoprazole Impurity H
Dextrorotation lansoprazole Impurity M Dextrorotation lansoprazole Impurity M
lansoprazole Impurity 26 lansoprazole Impurity 26
Lincomycin sulfone Impurity 2 Lincomycin sulfone Impurity 2
Palbociclib Impurity 31 Palbociclib Impurity 31 2955712-44-2
Parecoxib Impurity T Parecoxib Impurity T 198471-83-9 C19H18N2O5S
Ropivacaine Impurity 31 Ropivacaine Impurity 31
Ropivacaine Impurity 40 Ropivacaine Impurity 40
Sugammadex sodium Decomposition process Impurity 3 Sugammadex sodium Decomposition process Impurity 3
Sugammadex sodium Org48301 Impurity Sugammadex sodium Org48301 Impurity
Topiroxostat Impurity Ⅱ-3 Topiroxostat Impurity Ⅱ-3
Ivabradine related compound 9 Ivabradine related compound 9 85175-49-1 C12H13NO4
Afatinib impurity 28 Afatinib impurity 28
blonanserin impurity O blonanserin impurity O
Butyphthalide impurity 42 Butyphthalide impurity 42 952412-79-2 C10H12O3
Butyphthalide impurity 48 Butyphthalide impurity 48
Dapoxetine impurity 20 Dapoxetine impurity 20
Empagliflozin Impurity POE Empagliflozin Impurity POE
Febuxostat Impurity 73 Febuxostat Impurity 73
Febuxostat Impurity 78 Febuxostat Impurity 78
Ibrutinib Impurity 21 Ibrutinib Impurity 21 1642571-08-1 C27H30N6O3
Lenvatinib Impurity 22 Lenvatinib Impurity 22
Moxifloxacin Impurity 47 Moxifloxacin Impurity 47
Parecoxib sodium Impurity 35 Parecoxib sodium Impurity 35
Tofacitinib Impurity 20 Tofacitinib Impurity 20 1092578-44-3 C27H31N5O2S
Tofacitinib Impurity 88 Tofacitinib Impurity 88
Vildagliptin Impurity ZA9 Vildagliptin Impurity ZA9
Nintedanib Impurity K Nintedanib Impurity K
13-Cis Vitamin A Palmitate 13-Cis Vitamin A Palmitate 26771-20-0 C36H60O2
Apixaban Amino Acid Impurity Apixaban Amino Acid Impurity 2206825-87-6 C25H27N5O5
Bortezomib Impurity 52 Bortezomib Impurity 52 87304-47-0 C15H26BClO2
Moxifloxacin Impurity 20 HCl Moxifloxacin Impurity 20 HCl 959347-97-8 C21H25N3O4
2-amino-3,5-dibromo-N-((1r,4r)-4-hydroxycyclohexyl)benzamide 2-amino-3,5-dibromo-N-((1r,4r)-4-hydroxycyclohexyl)benzamide 105735-86-2 C13H16Br2N2O2
Palonosetron Impurity TM1-RR Palonosetron Impurity TM1-RR 1022895-91-5 C15H23ClN2
Eltrombopag Impurity 6 Eltrombopag Impurity 6
(1r,4r)-4-((2-amino-3-bromobenzyl)amino)cyclohexanol hydrochloride (1r,4r)-4-((2-amino-3-bromobenzyl)amino)cyclohexanol hydrochloride C13H20BrClN2O
(1s,4s)-4-((2-amino-5-bromobenzyl)amino)cyclohexanol hydrochloride (1s,4s)-4-((2-amino-5-bromobenzyl)amino)cyclohexanol hydrochloride 5579-35-1 C13H20BrClN2O
Moxifloxacin oxide Impurity Moxifloxacin oxide Impurity
Edaravone Impurity 18 Edaravone Impurity 18
Linagliptin Impurity 47 Linagliptin Impurity 47
(3R,5S,E)-7-(4-(4-fluorophenyl)-2-((2-hydroxy-N,2-dimethylpropyl)sulfonamido)-6-isopropylpyrimidin-5-yl)-3,5-dihydroxyhept-6-enoic acid (3R,5S,E)-7-(4-(4-fluorophenyl)-2-((2-hydroxy-N,2-dimethylpropyl)sulfonamido)-6-isopropylpyrimidin-5-yl)-3,5-dihydroxyhept-6-enoic acid 1715120-13-0 C25H34FN3O7S
Cabozantinib impurity 28 Cabozantinib impurity 28
Cabozantinib impurity 33 Cabozantinib impurity 33
Ondansetron Impurity 2 Ondansetron Impurity 2
Rivaroxaban Degradation Impurity C Rivaroxaban Degradation Impurity C
Irsogladine Impurity DQJ Irsogladine Impurity DQJ 61382-84-1 C9H6Cl2N4O
Pregabalin Impurity 7 Pregabalin Impurity 7 70767-77-0 C8H13NO3
Pregabalin Impurity 13 Pregabalin Impurity 13 1089315-68-3 C7H11NO3
Pralatrexate Impurity 7 Pralatrexate Impurity 7
Pitavastatin Impurity 39 Pitavastatin Impurity 39
Dapoxetine impurity 31 Dapoxetine impurity 31
Lenvatinib Impurity 36 Lenvatinib Impurity 36
Sitafloxacin Impurity 19 Sitafloxacin Impurity 19
Febuxostat Impurity 97 Febuxostat Impurity 97
Dapoxetine impurity 32 Dapoxetine impurity 32
Olprinone Impurity D Olprinone Impurity D
Atracurium Impurity 30 Atracurium Impurity 30
Canagliflozin Impurity 48 Canagliflozin Impurity 48
Canagliflozin Impurity 54 Canagliflozin Impurity 54
Atracurium Impurity 33 Atracurium Impurity 33
Tofacitinib Impurity 105 Tofacitinib Impurity 105
Cabozantinib impurity Q Cabozantinib impurity Q
Gadobutrol Impurity 1 Gadobutrol Impurity 1 216670-14-3 C22H42ClLiN4O6
Pemetrexed disodium EP Impurity B Pemetrexed disodium EP Impurity B
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