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Pharmaceutical Impurity Reference Standards
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- Chemical Name:Bortezomib Impurity 40
- CAS:
- MF:
- Structure:

- Chemical Name:Edoxaban Impurity 28 (1R,2R,4R)
- CAS:1255529-38-4
- MF:C21H30ClN5O5
- Chemical Name:Linagliptin Impurity 31
- CAS:
- MF:
- Structure:

- Chemical Name:Olopatadine Impurity 1
- CAS:66801-40-9
- MF:C15H10O4
- Chemical Name:Paroxetine Impurity 12
- CAS:
- MF:
- Chemical Name:Rivaroxaban Impurity 69 DiHCl
- CAS:
- MF:
- Structure:

- Chemical Name:Sitafloxacin Impurity 5
- CAS:1630983-99-1
- MF:C15H12ClF4NO3
- Chemical Name:Ticagrelor Related Compound 92
- CAS:
- MF:
- Structure:

- Chemical Name:Valsartan Impurity 10
- CAS:1314799-74-0
- MF:C23H29N5O
- Chemical Name:Vonoprazan Impurity 23
- CAS:
- MF:
- Chemical Name:Adefovir Impurity 1
- CAS:
- MF:
- Chemical Name:Bendamustine Impurity G
- CAS:
- MF:
- Chemical Name:Blonanserin Impurity K
- CAS:
- MF:
- Chemical Name:Brexpiprazole Impurity F
- CAS:
- MF:
- Chemical Name:Cefazolin USP Impurity D
- CAS:
- MF:
- Structure:

- Chemical Name:Cefuroxime Impurity 9
- CAS:2165460-37-5
- MF:C8H10N2O4S
- Chemical Name:Everolimus Impurity E
- CAS:
- MF:
- Chemical Name:Peramivir Impurity 3
- CAS:
- MF:
- Chemical Name:Bendamustine Impurity 25
- CAS:
- MF:
- Chemical Name:Canagliflozin Impurity 25
- CAS:
- MF:
- Structure:

- Chemical Name:Edoxaban Impurity 41
- CAS:1353893-25-0
- MF:C14H27N3O3
- Chemical Name:Istradefylline Impurity 5
- CAS:
- MF:
- Chemical Name:Milrinone Impurity 10
- CAS:
- MF:
- Structure:

- Chemical Name:N-(2-Chloro-ethyl)-N'-(2,3-dichloro-phenyl)-ethane-1,2-diamine
- CAS:
- MF:C10H13Cl3N2
- Structure:

- Chemical Name:Olanzapine Impurity 3
- CAS:
- MF:C17H20N4S
- Chemical Name:Ticagrelor Related Compound 54
- CAS:
- MF:
- Chemical Name:Adefovir Impurity D
- CAS:
- MF:
- Chemical Name:Blonanserin Impurity N
- CAS:
- MF:
- Chemical Name:Brexpiprazole Impurity N
- CAS:
- MF:
- Chemical Name:Cefaclor Impurity 1
- CAS:
- MF:
- Chemical Name:Cefminox Sodium impurity 4
- CAS:
- MF:
- Chemical Name:Cefradine Impurity B
- CAS:
- MF:
- Chemical Name:Dapoxetine Impurity F
- CAS:
- MF:
- Chemical Name:Olaparib Impurity E
- CAS:
- MF:
- Structure:

- Chemical Name:Cefathiamidine Impurity 6
- CAS:28240-16-6
- MF:C12H13ClN2O6S
- Chemical Name:Peramivir Impurity 8
- CAS:
- MF:
- Structure:

- Chemical Name:Pitavastatin Impurity 13
- CAS:
- MF:
- Chemical Name:Pramipexole Impurity R
- CAS:
- MF:
- Chemical Name:Tadalafil Impuirty 21
- CAS:
- MF:
- Structure:

- Chemical Name:Abacavir
- CAS:141271-12-7
- MF:C10H14ClN5O
- Chemical Name:Canagliflozin Impurity 42
- CAS:
- MF:
- Structure:

- Chemical Name:Maleic Acid
- CAS:2170020-79-6
- MF:C21H20FN3O6S
- Structure:

- Chemical Name:Ozagrel Impurity 21
- CAS:883942-98-1
- MF:C23H20N2O4
- Structure:

- Chemical Name:Terbutaline Impurity
- CAS:1226543-90-3
- MF:C22H20O4
- Structure:

- Chemical Name:lidocaine impurity
- CAS:1374010-02-2
- MF:C30H36N4O3
- Chemical Name:Desloratadine Impurity 7
- CAS:
- MF:
- Chemical Name:Esomeprazole Impurity 28
- CAS:
- MF:
- Structure:

- Chemical Name:ethyl 2-(3-carbamoyl-4-isobutoxyphenyl)-4-methylthiazole-5- carboxylate
- CAS:1346238-15-0
- MF:C18H22N2O4S
- Structure:

- Chemical Name:Ropivacaine impurity
- CAS:1786518-57-7
- MF:C13H16N2O3
- Structure:

- Chemical Name:Mono Oxidation Sugammadex(Org199425-1)
- CAS:2412953-14-9
- MF:C72H113NaO49S8
- Structure:

- Chemical Name:Moxifloxacin Impurity 40
- CAS:121577-35-3
- MF:C15H16F3NO4
- Structure:

- Chemical Name:sodium 2-(((3,4-dimethoxypyridin-2-yl)methyl)thio)-5- hydroxy-4-sulfonatobenzo[d]imidazol-1-ide
- CAS:
- MF:C15H13N3Na2O6S2
- Structure:

- Chemical Name:Dexmedetomidine-007
- CAS:2240179-63-7
- MF:C13H16N2
- Structure:

- Chemical Name:2-(5-methyl-4-phenylisoxazol-3-yl)benzenesulfonamide
- CAS:2304623-37-6
- MF:C16H14N2O3S
- Structure:

- Chemical Name:rac-2,2'-(((3aR,3a'R,4R,4'R,6S,6aS,6'S,6a'S)-((5-nitro-2-(propylthio)pyrimidine-4,6-diyl)bis(azanediyl))bis(2,2-dimethyltetrahydro-4H-cyclopenta[d][1,3]dioxole-6,4-diyl))bis(oxy))bis(ethan-1-ol)
- CAS:1882095-50-2
- MF:C27H43N5O10S
- Structure:

- Chemical Name:Levofloxacin Impurity 23
- CAS:2206825-95-6
- MF:C19H21ClFN3O4
- Structure:

- Chemical Name:Nitrendipine impurity 1
- CAS:1242511-98-3
- MF:C18H18N2O5
- Structure:

- Chemical Name:methyl 7-bromo-4-hydroxyisoquinoline-3-carboxylate
- CAS:1572439-66-7
- MF:C11H8BrNO3
- Structure:

- Chemical Name:Dapoxetine impurity
- CAS:2242008-36-0
- MF:C28H26O3
- Structure:

- Chemical Name:Pregabalin Impurity 11
- CAS:177432-20-1
- MF:C7H11NO3
- Structure:

- Chemical Name:Pregabalin Impurity 6
- CAS:2102350-92-3
- MF:C9H15NO3
- Chemical Name:Sunitinib Impurity 2
- CAS:
- MF:
- Structure:

- Chemical Name:(2S,3R,4R,5S,6R)-2-(3-(4-ethoxybenzyl)phenyl)-6-(hydroxyl methyl)tetrahydro-2H-pyran-3,4,5-triol
- CAS:2452300-89-7
- MF:C21H26O6
- Structure:

- Chemical Name:(R)-Zanubrutinib
- CAS:1691249-44-1
- MF:C27H29N5O3
- Structure:

- Chemical Name:LUMAT-005
- CAS:313369-16-3
- MF:C16H19N3O3
- Chemical Name:Fimasartan Impurity F
- CAS:
- MF:
- Structure:

- Chemical Name:Amlodipine Impurity 23 (E-Isomer)
- CAS:
- MF:C26H31ClN2O8S
- Chemical Name:Axitinib Impurity 12
- CAS:
- MF:
- Chemical Name:Axitinib Impurity 17
- CAS:
- MF:
- Chemical Name:Erlotinib Impurity 37
- CAS:
- MF:
- Structure:

- Chemical Name:Bis{2-[benzyl(methyl)amino]ethyl} 2,6-dimethyl-4-(3-nitrophenyl)-1,4-dihydropyridine-3,5-dicarboxylate dihydrochloride
- CAS:71784-27-5
- MF:C35H41ClN4O6
- Structure:

- Chemical Name:3-amino-6-chloro-2-methyl-4-phenylquinazolin-4-ol
- CAS:27537-87-7
- MF:C15H14ClN3O
- Structure:

- Chemical Name:Riluzole 5-Trifluoromethoxy Isomer
- CAS:752969-85-0
- MF:C8H5F3N2OS
- Structure:

- Chemical Name:Pazufloxacin Impurity 7
- CAS:171567-48-9
- MF:C15H15FN2O3
- Chemical Name:Empagliflozin Impurity 42
- CAS:
- MF:
- Structure:

- Chemical Name:2-amino-2-(4-nonylphenethyl)propane-1,3-diol
- CAS:746594-44-5
- MF:C20H35NO2
- Chemical Name:Zopiclone Impurity 17
- CAS:
- MF:
- Structure:

- Chemical Name:Pregabalin Impurity D
- CAS:53439-96-6
- MF:C11H14O3
- Structure:

- Chemical Name:Cephalosporin Impurity 3 HCl
- CAS:2429-86-9
- MF:C14H17N3O6S
- Structure:

- Chemical Name:((2R,3S,4R,5R,6S)-6-(3-((5-(4-fluorophenyl)thiophen-2-yl) methyl)-4-methylphenyl)-3,4,5-trihydroxytetrahydro- 2H-pyran-2-yl)methyl acetate
- CAS:2146135-87-5
- MF:C26H27FO6S
- Chemical Name:Atracurium Impurity 5
- CAS:
- MF:
- Chemical Name:Cefazolin Impurity 1
- CAS:
- MF:
- Structure:

- Chemical Name:Tofacitinib Impurity 77
- CAS:1640971-51-2
- MF:C16H20N6O2
- Chemical Name:Tofacitinib Impurity 84
- CAS:
- MF:
- Structure:

- Chemical Name:Cetirizine impurity B 2HCl
- CAS:1000690-91-4
- MF:C19H22Cl2N2O2
- Structure:

- Chemical Name:7-Despropyl 7-Methyl Vardenafil
- CAS:2169247-39-4
- MF:C21H28N6O4S
- Chemical Name:Apixaban Impurity 32
- CAS:
- MF:
- Chemical Name:Apremilast Impurity 20
- CAS:
- MF:
- Chemical Name:Bendamustine Impurity 36
- CAS:
- MF:
- Structure:

- Chemical Name:Bosutinib Impurity 7
- CAS:219786-51-3
- MF:C10H12BrNO4
- Chemical Name:Cefazolin Impurity 13
- CAS:
- MF:
- Chemical Name:Cefoxitin Impurity 4
- CAS:
- MF:
- Structure:

- Chemical Name:Cilnidipine Impurity 3
- CAS:123853-41-8
- MF:C24H22N2O6
- Chemical Name:Erlotinib Impurity 50
- CAS:
- MF:
- Chemical Name:Pitavastatin Impurity 26
- CAS:
- MF:
- Chemical Name:Plerixafor Impurity 2
- CAS:
- MF:
- Structure:

- Chemical Name:Pregabalin Impurity 48
- CAS:1239856-83-7
- MF:C11H23NO2
- Chemical Name:Rivaroxaban Impurity 76
- CAS:
- MF:
- Chemical Name:Rocuronium bromide Impurity 36
- CAS:
- MF:
- Structure:

- Chemical Name:Sildenafil Impurity 14
- CAS:2146091-79-2
- MF:C24H32N6OS2