USP Category

(R,R)-Ivosidenib (25 mg) ((R)-N-((R)-1-(2-chlorophenyl)-2-((3,3-difluorocyclobutyl)amino)-2-oxoethyl)-1-(4-cyanopyridin-2-yl)-N-(5-fluoropyridin-3-yl)-5-oxopyrrolidine-2-carboxamide)

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Catalogue No. 1A17390
CAS No. 2408269-66-7
Molecular Formula C28H22ClF3N6O3
Product Type Pharmaceutical Analytical Impurity

(R,S)-Ivosidenib (25 mg) ((S)-N-((R)-1-(2-chlorophenyl)-2-((3,3-difluorocyclobutyl)amino)-2-oxoethyl)-1-(4-cyanopyridin-2-yl)-N-(5-fluoropyridin-3-yl)-5-oxopyrrolidine-2-carboxamide)

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Catalogue No. 1A17400
CAS No. 2070009-31-1
Molecular Formula C28H22ClF3N6O3
Product Type Pharmaceutical Analytical Impurity

1,2-Dipalmitoyl-sn-glycero-3-phosphocholine (25 mg) (1,2-Dipalmitoyl-sn-glycero-3-phosphocholine)

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Catalogue No. 1800423
CAS No. 63-89-8
Molecular Formula C40H80NO8P
Product Type Pharmaceutical Analytical Impurity

7,20-Dioxopregna-5,16-dien-3β-yl acetate (25 mg) ((3S,8R,9S,10R,13S,14S)-17-acetyl-10,13-dimethyl-7-oxo-2,3,4,7,8,9,10,11,12,13,14,15-dodecahydro-1H-cyclopenta[a]phenanthren-3-yl acetate)

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Catalogue No. 1A16780
CAS No. 19324-55-1
Molecular Formula C23H30O4
Product Type Pharmaceutical Analytical Impurity

Afatinib 2-Sulfonic Acid (25 mg) (4((4-((3-Chloro-4-fluorophenyl) amino)-7-(((S)-tetrahydrofuran-3-yl) oxy) quinazolin-6-yl)amino)-1-(dimethylamino)-4-oxobutane-2-sulfonic acid)

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Catalogue No. 1A16840
CAS No. 2283295-16-7
Molecular Formula C24H27ClFN5O6S
Product Type Pharmaceutical Analytical Impurity

Azetidinyl Baricitinib (25 mg) (2-(3-(4-(1-(3-(Cyanomethyl)-1-(ethylsulfonyl)azetidin-3-yl)-1H-pyrazol-4-yl)-7H-pyrrolo[2,3-d]pyrimidin-7-yl)-1-(ethylsulfonyl)azetidin-3-yl)acetonitrile)

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Catalogue No. 1A16940
CAS No. 2402776-84-3
Molecular Formula C23H27N9O4S2
Product Type Pharmaceutical Analytical Impurity

Baricitinib 4-amino 5-carboxylic acid (25 mg) (4-Amino-6-(1-(3-(cyanomethyl)-1-(ethylsulfonyl)azetidin-3-yl)-1H-pyrazol-4-yl)pyrimidine-5-carboxylic acid)

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Catalogue No. 1A16950
CAS No. 2964606-42-4
Molecular Formula C15H17N7O4S
Product Type Pharmaceutical Analytical Impurity

Binimetinib Acid (25 mg) (5-((4-Bromo-2-fluorophenyl)amino)-4-fluoro-1-methyl-1H-benzo[d]imidazole-6-carboxylic acid)

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Catalogue No. 1A17000
CAS No. 1415564-99-6
Molecular Formula C15H10BrF2N3O2
Product Type Pharmaceutical Analytical Impurity

Binimetinib Isomer (25 mg) (6-[(4-Bromo-2-fluorophenyl)amino]-7-fluoro-N-(2-hydroxyethoxy)-1-methyl-1H-benzimidazole-5-carboxamide)

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Catalogue No. 1A16990
CAS No. N/A
Molecular Formula C17H15BrF2N4O3
Product Type Pharmaceutical Analytical Impurity

Bis(4-isobutoxybenzyl)urea (25 mg) (1,3-Bis(4-isobutoxybenzyl)urea)

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Catalogue No. 1A16360
CAS No. 955997-87-2
Molecular Formula C23H32N2O3
Product Type Pharmaceutical Analytical Impurity

Bromoindole Bromfenac (25 mg) ((3-bromo-1H-indol-7-yl)(4-bromophenyl)methanone)

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Catalogue No. 1A16570
CAS No. 1279501-08-4
Molecular Formula C15H9Br2NO
Product Type Pharmaceutical Analytical Impurity

Butenyloxy Pimavanserin (25 mg) (1-(4-fluorobenzyl)-3-(4-((2-methylallyl)oxy)benzyl)-1-(1-methylpiperidin-4-yl)urea)

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Catalogue No. 1A16340
CAS No. 1246458-13-8
Molecular Formula C25H32FN3O2
Product Type Pharmaceutical Analytical Impurity

Chloro Erlotinib (25 mg) (4-Chloro-6,7-bis(2-methoxyethoxy)quinazoline)

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Catalogue No. 1A18080
CAS No. 183322-18-1
Molecular Formula C14H17ClN2O4
Product Type Pharmaceutical Analytical Impurity

Darolutamide Acid (25 mg) (2-Chloro-4-(1-((2S)-2-(5-(1-hydroxyethyl)-1H-pyrazole-3-carboxamido)propyl)-1H-pyrazol-3-yl)benzoic acid)

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Catalogue No. 1A17100
CAS No. N/A
Molecular Formula C19H20ClN5O4
Product Type Pharmaceutical Analytical Impurity

Darolutamide Amide (25 mg) (N-((S)-1-(3-(4-Carbamoyl-3-chlorophenyl)-1H-pyrazol-1-yl)propan-2-yl)-5-(1-hydroxyethyl)-1H-pyrazole-3-carboxamide)

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Catalogue No. 1A17090
CAS No. N/A
Molecular Formula C19H21ClN6O3
Product Type Pharmaceutical Analytical Impurity

Darolutamide Enantiomer (25 mg) (N-((R)-1-(3-(3-Chloro-4-cyanophenyl)-1H-pyrazol-1-yl)propan-2yl)-5-(1-hydroxyethyl)-1H-pyrazole-3-carboxamide)

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Catalogue No. 1A17080
CAS No. 2407645-49-0
Molecular Formula C19H19ClN6O2
Product Type Pharmaceutical Analytical Impurity

Deboronic acid Ixazomib (25 mg) (2,5-Dichloro-N-(2-(isopentylamino)-2-oxoethyl)benzamide)

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Catalogue No. 1A17410
CAS No. 2872629-73-5
Molecular Formula C14H18Cl2N2O2
Product Type Pharmaceutical Analytical Impurity

Dedimethyl Afatinib Dimer (25 mg) (N1,N2-bis(4-((3-chloro-4-fluorophenyl)amino)-7-(((S)-tetrahydrofuran-3-yl)oxy)quinazolin-6-yl)oxalamide)

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Catalogue No. 1A16820
CAS No. 2223677-65-2
Molecular Formula C38H30Cl2F2N8O6
Product Type Pharmaceutical Analytical Impurity

Depiperazine Depyridine  Abemaciclib (25 mg) (4-Fluoro-6-(5-fluoropyrimidin-4-yl)-1-isopropyl-2-methyl-1H-benzo[d]imidazole)

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Catalogue No. 1A16740
CAS No. N/A
Molecular Formula C15H14F2N4
Product Type Pharmaceutical Analytical Impurity

Desacryloyl N-Nitroso Zanubrutinib (5 mg) (7-(1-nitrosopiperidin-4-yl)-2-(4-phenoxyphenyl)-4,5,6,7-tetrahydropyrazolo[1,5-a]pyrimidine-3-carboxamide)

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Catalogue No. 1A15040
CAS No. N/A
Molecular Formula C24H26N6O3
Product Type Pharmaceutical Analytical Impurity

Descyanoaryl Desthio N-Nitroso Apalutamide acid (5 mg) (1-((3-Fluoro-4-(methylcarbamoyl)phenyl)(nitroso)amino)cyclobutane-1-carboxylic acid)

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Catalogue No. 1A16920
CAS No. 3110019-38-7
Molecular Formula C13H14FN3O4
Product Type Pharmaceutical Analytical Impurity

Descyclopropyl Cabozantinib Urea Dimer (25 mg) (N1,N2-Bis(4-((6,7-dimethoxyquinolin-4-yl)oxy)phenyl)oxalamide)

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Catalogue No. 1A17020
CAS No. 2832439-31-1
Molecular Formula C36H30N4O8
Product Type Pharmaceutical Analytical Impurity

Descyclopropyl Cabozantinib Urea Dimer (25 mg) (1,3-Bis(4-((6,7-dimethoxyquinolin-4-yl)oxy)phenyl)urea)

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Catalogue No. 1A17030
CAS No. 2840522-81-6
Molecular Formula C35H30N4O7
Product Type Pharmaceutical Analytical Impurity

Desfluoromethylbenzamide Apalutamide Thiourea (25 mg) (1,3-Bis(6-cyano-5-(trifluoromethyl)pyridin-3-yl)thiourea)

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Catalogue No. 1A16860
CAS No. 2949499-02-7
Molecular Formula C15H6F6N6S
Product Type Pharmaceutical Analytical Impurity

Desfluorophenylamine Cabozantinib Methyl Ester (25 mg) (Methyl 1-((4-((6,7-dimethoxyquinolin-4-yl)oxy)phenyl)carbamoyl)cyclopropane-1-carboxylate)

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Catalogue No. 1A17040
CAS No. 1584696-82-1
Molecular Formula C23H22N2O6
Product Type Pharmaceutical Analytical Impurity

Desmorpholine Momelotinib (25 mg) (4-(2-((4-Aminophenyl)amino)pyrimidin-4-yl)-N-(cyanomethyl)benzamide)

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Catalogue No. 1A17440
CAS No. 1841094-21-0
Molecular Formula C19H16N6O
Product Type Pharmaceutical Analytical Impurity

Despiperidinyl Pimavanserin (25 mg) (1-(4-fluorobenzyl)-3-(4-isobutoxybenzyl)urea)

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Catalogue No. 1A16370
CAS No. 1388858-78-3
Molecular Formula C19H23FN2O2
Product Type Pharmaceutical Analytical Impurity

Diethoxy Apremilast (25 mg) ((S)-N-{2-[1-(3,4-Diethoxyphenyl)-2-(methylsulfonyl)ethyl]-1,3-dioxoisoindolin-4-yl}acetamide)

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Catalogue No. 1A19210
CAS No. 2448678-64-4
Molecular Formula C23H26N2O7S
Product Type Pharmaceutical Analytical Impurity

Diketo Afatinib (25 mg) (((S)-N1-(4-((3-chloro-4-fluorophenyl)amino)-7-((tetrahydrofuran-3-yl)oxy)quinazolin-6-yl)-N2,N2-dimethyloxalamide) )

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Catalogue No. 1A16830
CAS No. 2223677-66-3
Molecular Formula C22H21ClFN5O4
Product Type Pharmaceutical Analytical Impurity

Diketo Amide Neratinib (25 mg) (N1-(4-((3-Chloro-4-(pyridin-2-ylmethoxy)phenyl)amino)-3-cyano-7-ethoxyquinolin-6-yl)-N2,N2-dimethyloxalamide)

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Catalogue No. 1A17470
CAS No. 1144516-19-7
Molecular Formula C28H25ClN6O4
Product Type Pharmaceutical Analytical Impurity

Dimethoxy Apremilast (25 mg) ((S)-N-{2-[1-(3,4-Dimethoxyphenyl)-2-(methylsulfonyl)ethyl]-1,3-dioxoisoindolin-4-yl}acetamide)

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Catalogue No. 1A19200
CAS No. 1809089-51-7
Molecular Formula C21H22N2O7S
Product Type Pharmaceutical Analytical Impurity

Ethyl Erlotinib (25 mg) (N-(3-Ethylphenyl)-6,7-bis(2-methoxyethoxy)-4-quinazolinamine)

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Catalogue No. 1A18100
CAS No. 299912-61-1
Molecular Formula C22H27N3O4
Product Type Pharmaceutical Analytical Impurity

Formyl Selpercatinib (25 mg) ((6-(2-hydroxy-2-methylpropoxy)-4-(6-(6-((6-methoxypyridin-3-yl)methyl)-3,6-diazabicyclo[3.1.1]heptan-3-yl)pyridin-3-yl)pyrazolo[1,5-a]pyridine-3-carbaldehyde) )

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Catalogue No. 1A17510
CAS No. 2817648-41-0
Molecular Formula C29H32N6O4
Product Type Pharmaceutical Analytical Impurity

Hydroxy Cinacalcet Hydrochloride (25 mg) (3-{[(R)-1-(Naphthalen-1-yl)ethyl]amino}-3-[3-(trifluoromethyl)phenyl]propan-1-ol hydrochloride)

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Catalogue No. 1A16320
CAS No. 1273259-50-9
Molecular Formula C22H22F3NO ? HCl
Product Type Pharmaceutical Analytical Impurity

Imatinib Dioxide (25 mg) (4-[(4-Methyl-1,4-dioxido-1-piperazinyl)methyl]-N-[4-methyl-3-[[4-(3-pyridinyl)-2-pyrimidinyl]amino]phenyl]benzamide)

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Catalogue No. 1A17180
CAS No. 571186-93-1
Molecular Formula C29H31N7O3
Product Type Pharmaceutical Analytical Impurity

Imatinib N1-Oxide (25 mg) (4-[(4-Methyl-1-oxido-1-piperazinyl)methyl]-N-[4-methyl-3-[[4-(3-pyridinyl)-2-pyrimidinyl]amino]phenyl]benzamide)

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Catalogue No. 1A17190
CAS No. 938082-57-6
Molecular Formula C29H31N7O2
Product Type Pharmaceutical Analytical Impurity

Indole Bromfenac (25 mg) ((4-bromophenyl)(1H-indol-7-yl)methanone)

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Catalogue No. 1A16550
CAS No. 91714-50-0
Molecular Formula C15H10BrNO
Product Type Pharmaceutical Analytical Impurity

meso-Phenyltetrahydroisoquinoline urea (25 mg) ([(R)-1-phenyl-3,4-dihydroisoquinolin-2(1H)-yl][(S)-1-phenyl-3,4-dihydroisoquinolin-2(1H)-yl]methanone)

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Catalogue No. 1A16460
CAS No. 2216750-52-4
Molecular Formula C31H28N2O
Product Type Pharmaceutical Analytical Impurity

Momelotinib Open Ring Alcohol (25 mg) (N-(Cyanomethyl)-4-(2-((4-((2-hydroxyethyl)amino)phenyl)amino)pyrimidin-4-yl)benzamide)

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Catalogue No. 1A17430
CAS No. 1841094-20-9
Molecular Formula C21H20N6O2
Product Type Pharmaceutical Analytical Impurity

N-(2-methoxyethyl) Apalutamide (25 mg) ((4-(7-(6-cyano-5-(trifluoromethyl)pyridin-3-yl)-8-oxo-6-thioxo-5,7-diazaspiro[3.4]octan-5-yl)-2-fluoro-N-(2-methoxyethyl)-N-methylbenzamide) )

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Catalogue No. 1A16910
CAS No. 1332391-30-6
Molecular Formula C24H21F4N5O3S
Product Type Pharmaceutical Analytical Impurity

N-Demethyl Fruquintinib (25 mg) (6-((6,7-Dimethoxyquinazolin-4-yl)oxy)-2-methylbenzofuran-3-carboxamide)

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Catalogue No. 1A17140
CAS No. 3110019-46-7
Molecular Formula C20H17N3O5
Product Type Pharmaceutical Analytical Impurity

N-Demethyl Imatinib Dimer (25 mg) (1,4-Bis-[4-[4-methyl-3-[[4-(pyridin-3-yl)pyrimidin-2-yl]amino]phenyl]carbamoyl]benzylpiperazine)

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Catalogue No. 1A17200
CAS No. 1365802-18-1
Molecular Formula C52H48N12O2
Product Type Pharmaceutical Analytical Impurity

N-Desacetamido N-Nitroso Ranolazine (5 mg) (1-(2-methoxyphenoxy)-3-(4-nitrosopiperazin-1-yl)propan-2-ol)

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Catalogue No. 1A14850
CAS No. 3104323-44-3
Molecular Formula C14H21N3O4
Product Type Pharmaceutical Analytical Impurity

N-Desacryloyl N-Nitroso Sotorasib (5 mg)

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Catalogue No. 1A17530
CAS No. N/A
Molecular Formula C27H27F2N7O3
Product Type Pharmaceutical Analytical Impurity

N-Desethyl N-Nitroso Abemaciclib (5 mg) ((5-Fluoro-4-(4-fluoro-1-isopropyl-2-methyl-1H-benzo[d]imidazol-6-yl)-N-(5-((4-nitrosopiperazin-1-yl)methyl)pyridin-2-yl)pyrimidin-2-amine))

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Catalogue No. 1A14710
CAS No. N/A
Molecular Formula C25H27F2N9O
Product Type Pharmaceutical Analytical Impurity

N-Desmethyl N-Nitroso Sildenafil (5 mg) (5-(2-Ethoxy-5-((4-nitrosopiperazin-1-yl)sulfonyl)phenyl)-1-methyl-3-propyl-1,6-dihydro-7H-pyrazolo[4,3-d]pyrimidin-7-one)

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Catalogue No. 1A14700
CAS No. N/A
Molecular Formula C21H27N7O5S
Product Type Pharmaceutical Analytical Impurity

N-Methyl Darunavir (25 mg) ((3R,3aS,6aR)-Hexahydrofuro[2,3-b]furan-3-yl [(2S,3R)-3-hydroxy-4-{[N-isobutyl-4-(methylamino)phenyl]sulfonamido}-1-phenylbutan-2-yl]carbamate)

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Catalogue No. 1A16500
CAS No. N/A
Molecular Formula C28H39N3O7S
Product Type Pharmaceutical Analytical Impurity

N-Nitroso Arformoterol (5 mg) (N-[2-hydroxy-5-[(1R)-1-hydroxy-2-[[(2R)-1-(4-methoxyphenyl)propan-2-yl]-nitrosoamino]ethyl]phenyl]formamide)

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Catalogue No. 1A17870
CAS No. N/A
Molecular Formula C19H23N3O5
Product Type Pharmaceutical Analytical Impurity

N-Nitroso Depropyl Ropivacaine (5 mg) ((S)-N-(2,6-dimethylphenyl)-1-nitrosopiperidine-2-carboxamide)

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Catalogue No. 1A18140
CAS No. 3078594-41-6
Molecular Formula C14H19N3O2
Product Type Pharmaceutical Analytical Impurity

N-Nitroso Esmolol (5 mg) ((methyl 3-(4-(2-hydroxy-3-(isopropyl(nitroso)amino)propoxy)phenyl)propanoate) )

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Catalogue No. 1A14910
CAS No. N/A
Molecular Formula C16H24N2O5
Product Type Pharmaceutical Analytical Impurity

N-Nitroso Flecainide (5 mg) ((N-((1-nitrosopiperidin-2-yl)methyl)-2,5-bis(2,2,2-trifluoroethoxy)benzamide))

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Catalogue No. 1A14720
CAS No. 2901109-58-6
Molecular Formula C17H19F6N3O4
Product Type Pharmaceutical Analytical Impurity

N-Nitroso Formoterol (5 mg) ((N-(2-hydroxy-5-((RS)-1-hydroxy-2-(((RS)-1-(4-methoxyphenyl) propan-2-yl)(nitroso)amino)ethyl)phenyl)formamide))

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Catalogue No. 1A14690
CAS No. N/A
Molecular Formula C19H23N3O5
Product Type Pharmaceutical Analytical Impurity

N-Nitroso Gatifloxacin (5 mg) (1-Cyclopropyl-6-fluoro-8-methoxy-7-(3-methyl-4-nitrosopiperazin-1-yl)-4-oxo-1,4-dihydroquinoline-3-carboxylic Acid)

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Catalogue No. 1A14860
CAS No. N/A
Molecular Formula C19H21FN4O5
Product Type Pharmaceutical Analytical Impurity

N-Nitroso Nadolol (5 mg) (5-{2-Hydroxy-3-[(2-methyl-2-propanyl)(nitroso)amino]propoxy}-1,2,3,4-tetrahydro-2,3-naphthalenediol)

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Catalogue No. 1A14870
CAS No. 134720-06-2
Molecular Formula C17H26N2O5
Product Type Pharmaceutical Analytical Impurity

N-Nitroso Prilocaine (5 mg) ((2-(nitroso(propyl)amino)-N-(o-tolyl)propanamide))

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Catalogue No. 1A14730
CAS No. 211490-46-9
Molecular Formula C13H19N3O2
Product Type Pharmaceutical Analytical Impurity

N,N-didesethyl N-Nitroso Lidocaine Dimer (5 mg) (2,2?-(Nitrosoimino)bis[N-(2,6-dimethylphenyl)acetamide])

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Catalogue No. 1A14970
CAS No. N/A
Molecular Formula C20H24N4O3
Product Type Pharmaceutical Analytical Impurity

O-Chlorobutylabiraterone (25 mg) (3?-(4-Chlorobutoxyl)-17-(Pyridin-3-yl)androsta-5,16-diene)

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Catalogue No. 1A16770
CAS No. 2484719-17-5
Molecular Formula C28H38ClNO
Product Type Pharmaceutical Analytical Impurity

Pazopanib 1,3-dimethyl isomer hydrochloride (25 mg) (5-({4-[(1,3-Dimethyl-2H-indazol-6-yl)methylamino]pyrimidin-2-yl}amino)-2-methylbenzenesulfonamide monohydrochloride)

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Catalogue No. 1A17640
CAS No. 2369664-26-4
Molecular Formula N/A
Product Type Pharmaceutical Analytical Impurity

Piracetam Acid (25 mg) ((2-Oxo-1-pyrrolidinyl)acetic acid)

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Catalogue No. 1A18050
CAS No. 53934-76-2
Molecular Formula C6H9NO3
Product Type Pharmaceutical Analytical Impurity

rac-Niraparib Acid (25 mg) (2-(4-(Piperidin-3-yl)phenyl)-2H-indazole-7-carboxylic acid)

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Catalogue No. 1A17480
CAS No. 2086267-12-9
Molecular Formula C19H19N3O2
Product Type Pharmaceutical Analytical Impurity

S,S-Phenyltetrahydroisoquinoline urea (25 mg) (Bis[(S)-1-phenyl-3,4-dihydroisoquinolin-2(1H)-yl]methanone)

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Catalogue No. 1A16450
CAS No. 1534326-81-2
Molecular Formula C31H28N2O
Product Type Pharmaceutical Analytical Impurity

sec-Butyloxy Pimavanserin (25 mg) (3-(4-(sec-butoxy)benzyl)-1-(4-fluorobenzyl)-1-(1-methylpiperidin-4-yl)urea)

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Catalogue No. 1A16350
CAS No. 2377646-60-9
Molecular Formula C25H34FN3O2
Product Type Pharmaceutical Analytical Impurity

Zanubrutinib Dimer (25 mg)

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Catalogue No. 1A17600
CAS No. N/A
Molecular Formula C51H56N10O5
Product Type Pharmaceutical Analytical Impurity
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