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Structure Chemical Name CAS MF
Axitinib Impurity 1 Axitinib Impurity 1
Pyrazinecarboxylic acid, 5-methyl-, 1-oxide (9CI) Pyrazinecarboxylic acid, 5-methyl-, 1-oxide (9CI) 98502-96-6 C6H6N2O3
ltrombopag Impurity 26 ltrombopag Impurity 26
4-アミノ-1-(2,3,5-トリ-O-アセチル-Β-D-リボフラノシル)-1,3,5-トリアジン-2(1H)-オン 4-アミノ-1-(2,3,5-トリ-O-アセチル-Β-D-リボフラノシル)-1,3,5-トリアジン-2(1H)-オン 10302-78-0 C14H18N4O8
(Z)-3-((2'-(N'-hydroxycarbaMiMidoyl)biphenyl-4-yl)Methyl)-2-oxo-2,3-dihydro-1H-benzo[d]iMidazole-4-carboxylic acid (Z)-3-((2'-(N'-hydroxycarbaMiMidoyl)biphenyl-4-yl)Methyl)-2-oxo-2,3-dihydro-1H-benzo[d]iMidazole-4-carboxylic acid 1174733-90-4 C10H14N4O6
Acyclovir IMpurity I Acyclovir IMpurity I
EltroMbopag Methyl Ester EltroMbopag Methyl Ester 1246929-01-0 C26H24N4O4
(4-Chloro-3,5-diMethylpyridin-2-yl)Methanol Hydrochloride (4-Chloro-3,5-diMethylpyridin-2-yl)Methanol Hydrochloride 143016-70-0 C8H11Cl2NO
S,S-Efinaconazole S,S-Efinaconazole 164650-45-7 C18H22F2N4O
135270-10-9 135270-10-9 135270-10-9 C12H11F2N3O
Carbamic acid, N-[(1R)-2-[5-(2-fluoro-3-methoxyphenyl)-3-[[2-fluoro-6-(trifluoromethyl)phenyl]methyl]-3,6-dihydro-4-methyl-2,6-dioxo-1(2H)-pyrimidinyl]-1-phenylethyl]-, 1,1-dimethylethyl ester Carbamic acid, N-[(1R)-2-[5-(2-fluoro-3-methoxyphenyl)-3-[[2-fluoro-6-(trifluoromethyl)phenyl]methyl]-3,6-dihydro-4-methyl-2,6-dioxo-1(2H)-pyrimidinyl]-1-phenylethyl]-, 1,1-dimethylethyl ester 830346-51-5 C33H32F5N3O5
(2S,3R)-2-(2,4-difluorophenyl)-1-(1H-1,2,4-triazol-1-yl)butane-2,3-diol (2S,3R)-2-(2,4-difluorophenyl)-1-(1H-1,2,4-triazol-1-yl)butane-2,3-diol 135272-36-5 C12H13F2N3O2
Ilaprazole Impurity Ilaprazole Impurity 1018229-53-2 C11H9N3O
Eltrombopag Impurity 2 Eltrombopag Impurity 2
Acyclovir Impurity 13 Acyclovir Impurity 13
Azacitidine Impurity 3 Azacitidine Impurity 3
N7-[(2-ヒドロキシエトキシ)メチル)グアニン N7-[(2-ヒドロキシエトキシ)メチル)グアニン 91702-61-3 C8H11N5O3
Axitinib Impurity 4 Axitinib Impurity 4 1443118-73-7 C22H20N4OS
Esomeprazole EP Impurity Esomeprazole EP Impurity
Acyclovir Impurity I: 7,9'-[Ethylene-bis(oxymethylene)] Bis (2-amino-1-9-dihydro-6H-purin-6-one) Acyclovir Impurity I: 7,9'-[Ethylene-bis(oxymethylene)] Bis (2-amino-1-9-dihydro-6H-purin-6-one) 1797832-75-7 C14H16N10O4
2(1H)-Pyridinone, 3,4-dihydro- 2(1H)-Pyridinone, 3,4-dihydro- 57147-25-8 C5H7NO
1,3-ジヒドロ-5-メトキシ-2H-ベンゾイミダゾール-2-オン 1,3-ジヒドロ-5-メトキシ-2H-ベンゾイミダゾール-2-オン 2080-75-3 C8H8N2O2
someprazole Impurity 19 someprazole Impurity 19 358675-51-1 C16H17N3O3S
Azacitidine Impurity 34 Azacitidine Impurity 34 105330-94-7 C9H14N4O5
ammonium 1-(5-methoxy-1H-benzo[d]imidazol-2-yl)-3,5-dimethyl-4-oxo-1,4-dihydropyridine-2-carboxylate ammonium 1-(5-methoxy-1H-benzo[d]imidazol-2-yl)-3,5-dimethyl-4-oxo-1,4-dihydropyridine-2-carboxylate 2227107-89-1 C16H18N4O4
Esomeprazole Impurity 42 Esomeprazole Impurity 42
Efinaconazole Related Impurity 13 Efinaconazole Related Impurity 13 2055912-03-1 C24H32FN5O
Acyclovir impurity R Acyclovir impurity R
(((4-methoxy-3,5-dimethylpyridin-2-yl)methyl)sulfinyl)-1H-benzo[d]imidazole compound with 6-methoxy-1-((4-methoxy-3,5-dimethylpyridin-2-yl)methyl)-2-(((4-methoxy-3,5-dimethylpyridin-2-yl)methyl)sulfinyl)-1H-benzo[d]imidazole (1:1) (((4-methoxy-3,5-dimethylpyridin-2-yl)methyl)sulfinyl)-1H-benzo[d]imidazole compound with 6-methoxy-1-((4-methoxy-3,5-dimethylpyridin-2-yl)methyl)-2-(((4-methoxy-3,5-dimethylpyridin-2-yl)methyl)sulfinyl)-1H-benzo[d]imidazole (1:1)
Esomeprazole Impurity 3 Esomeprazole Impurity 3 1346599-85-6 C26H30N4O4S
Eltrombopag Impurity 8 Eltrombopag Impurity 8
(2R,3R,4R,5R)-2-(4-amino-2-oxo (2R,3R,4R,5R)-2-(4-amino-2-oxo 1415316-72-1 C12H16N4O7
4-amino-1-((2R,3R,4S,5R)-3,4-dihydroxy-5-(hydroxymethyl)tetrahydrofuran-2-yl)-1,3,5-triazin-2(1H)-one compound with (2R,3S,4R,5S)-2-(hydroxymethyl)-5-methyltetrahydrofuran-3,4-diol 4-amino-1-((2R,3R,4S,5R)-3,4-dihydroxy-5-(hydroxymethyl)tetrahydrofuran-2-yl)-1,3,5-triazin-2(1H)-one compound with (2R,3S,4R,5S)-2-(hydroxymethyl)-5-methyltetrahydrofuran-3,4-diol
Acyclovir Impurity 15 Acyclovir Impurity 15
Itropopa Impurity 17 Itropopa Impurity 17
rac 4-Desmethoxy-4-nitro Omeprazole rac 4-Desmethoxy-4-nitro Omeprazole 317807-10-6 C16H16N4O4S
DesMethyl Erlotinib Carboxylate Acid DesMethyl Erlotinib Carboxylate Acid 882172-60-3 C21H19N3O5
Acyclovir IMpurity J Acyclovir IMpurity J
Acyclovir Impurity O Acyclovir Impurity O
Eltrombopag Impurity 3 Eltrombopag Impurity 3
Azacitidine Impurity EJ Azacitidine Impurity EJ
5-METHOXY-2-(METHYLTHIO)BENZIMIDAZOLE 5-METHOXY-2-(METHYLTHIO)BENZIMIDAZOLE 91168-31-9 C9H10N2OS
2-Pyrazinecarboxylic acid, 6-methyl-, 4-oxide 2-Pyrazinecarboxylic acid, 6-methyl-, 4-oxide 51037-31-1 C6H6N2O3
2-[[(5-hydroxy-1H-benziMidazol-2-yl)sulfinyl]Methyl]-3,5-diMethyl-1-4(1H)-pyridone 2-[[(5-hydroxy-1H-benziMidazol-2-yl)sulfinyl]Methyl]-3,5-diMethyl-1-4(1H)-pyridone C15H15N3O3S
EsoMeprazole iMpurity EsoMeprazole iMpurity 1424857-86-2 C11H15NO3
Eltrombopag Impurity 4 Eltrombopag Impurity 4
Atazanavir Impurity 6 Atazanavir Impurity 6 1006868-81-0 C32H42N4O5
Edoxaban Impurity 20 (1R,2R,4S) Edoxaban Impurity 20 (1R,2R,4S) 1928729-31-0 C16H29N3O7
Acyclovir Impurity 11 Acyclovir Impurity 11
Esomeprazole Impurity 43 Esomeprazole Impurity 43
Azacitidine Impurity 1 Azacitidine Impurity 1
4'-hydroxy-3'-nitro-[1,1'-biphenyl]-3-carboxylic acid 4'-hydroxy-3'-nitro-[1,1'-biphenyl]-3-carboxylic acid 1097777-60-0 C13H9NO5
Edoxaban impurity ABCDEFGHJKL Edoxaban impurity ABCDEFGHJKL
N-ForMyl-D-ribofuranosyl-3-guanylurea (α/β-Mixture) N-ForMyl-D-ribofuranosyl-3-guanylurea (α/β-Mixture) 686299-20-7 C8H14N4O6
(3S,8R,9S,12S)-3,12-Bis(1,1-diMethylethyl)-8-hydroxy-4,11-dioxo-9-(phenylMethyl)-6-[[4-(2-pyridinyl)phenyl]Methyl]-,2,5,6,10,13-pentaazatetradecanedioic Acid 1,14-DiMethyl Ester (3S,8R,9S,12S)-3,12-Bis(1,1-diMethylethyl)-8-hydroxy-4,11-dioxo-9-(phenylMethyl)-6-[[4-(2-pyridinyl)phenyl]Methyl]-,2,5,6,10,13-pentaazatetradecanedioic Acid 1,14-DiMethyl Ester 1292296-09-3 C38H52N6O7
6-アミノ-5-アザシチジン 6-アミノ-5-アザシチジン 105331-00-8 C8H13N5O5
Esomeprazole Impurity 26 Esomeprazole Impurity 26 704910-88-3 C15H15N3OS
Acyclovir Impurity 1 Acyclovir Impurity 1
Esomeprazole Impurity Esomeprazole Impurity
Esomeprazole Impurity 27 Esomeprazole Impurity 27
Aciclovir EP Impurity N Aciclovir EP Impurity N
1-(diaminomethylidene)-3-[(2R,3R,4R,5R)-3,4-dihydroxy-5-(hydroxymethyl)oxolan-2-yl]urea 1-(diaminomethylidene)-3-[(2R,3R,4R,5R)-3,4-dihydroxy-5-(hydroxymethyl)oxolan-2-yl]urea 2508-80-7 C7H14N4O5
Acyclovir Impurity Q Acyclovir Impurity Q
Eltrombopag Impurity 6 Eltrombopag Impurity 6
Esomeprazole Impurity 6 Esomeprazole Impurity 6
5-Methoxy-2-Hydroxy Benzimidazole 5-Methoxy-2-Hydroxy Benzimidazole 208-75-3 C13H9N
2-Pyridinemethanol, 4-hydroxy-3,5-dimethyl- (9CI) 2-Pyridinemethanol, 4-hydroxy-3,5-dimethyl- (9CI) 727375-13-5 C8H11NO2
135270-13-2 135270-13-2 135270-13-2 C12H11F2N3O
Eltrombopag Impurity 5 Eltrombopag Impurity 5
Axitinib Impurity 27 Axitinib Impurity 27 1639137-80-6 C24H20N4O2S
(2R,3R,4R,5R)-2-(4-amino-2-oxo-1,3,5-triazin-1(2H)-yl)-4-hydroxy-5-(hydroxymethyl)tetrahydrofuran-3-yl acetate (2R,3R,4R,5R)-2-(4-amino-2-oxo-1,3,5-triazin-1(2H)-yl)-4-hydroxy-5-(hydroxymethyl)tetrahydrofuran-3-yl acetate C10H14N4O6
Azacitidine Impurity 31 Azacitidine Impurity 31 65024-85-3 C11H16O8
Efinaconazole Impurity 13 Efinaconazole Impurity 13 2055038-61-2 C18H22F2N4O
Acyclovir Impurity 12 Acyclovir Impurity 12
(E)-3'-(2-(1-(3,4-dimethylphenyl) (E)-3'-(2-(1-(3,4-dimethylphenyl)
sodium 5-methoxy-2-sulfinatobenzo[d]imidazol-1-id sodium 5-methoxy-2-sulfinatobenzo[d]imidazol-1-id
Eribulin Impurity 2 Eribulin Impurity 2
2-[(5-CARBOXY-4-METHOXY-3-METHYLPYRID-2-YL)-METHYLSULFO]-5-METHOXYBENZIMIDAZOLE 2-[(5-CARBOXY-4-METHOXY-3-METHYLPYRID-2-YL)-METHYLSULFO]-5-METHOXYBENZIMIDAZOLE 120003-72-7 C17H17N3O5S
5-Methoxy-2-[[(4-Methoxy-3,5-diMethyl-2-pyridinyl)Methyl]thio]-1H-benziMidazole N-Oxide 5-Methoxy-2-[[(4-Methoxy-3,5-diMethyl-2-pyridinyl)Methyl]thio]-1H-benziMidazole N-Oxide 142885-92-5 C17H19N3O3S
Iguratimod Impurity 5 Iguratimod Impurity 5 84594-95-6 C13H11NO4
Pyridine, 4-chloro-2-(chloromethyl)-3,5-dimethyl-, hydrochloride Pyridine, 4-chloro-2-(chloromethyl)-3,5-dimethyl-, hydrochloride 143016-68-6 C8H10Cl3N
2-メチルピラジン1,4-ジオキシド 2-メチルピラジン1,4-ジオキシド 32046-26-7 C5H6N2O2
Esomeprazole Impurity 28 Esomeprazole Impurity 28
Iguratimod Iguratimod 123663-50-3 C18H16N2O6S
Idebenone Impurity 5 Idebenone Impurity 5 88543-33-3 C18H28O5
Esomeprazole Impurity 41 Esomeprazole Impurity 41
Esomeprazole Impurity 34 Esomeprazole Impurity 34
ACICLOVIR, Impurity J ACICLOVIR, Impurity J
Eribulin Impurity 3 Eribulin Impurity 3
Erlotinib IMpurity A Erlotinib IMpurity A 1058132-82-3 C22H25N3O4
O-[(Guanin-9-yl)Methyl] Acyclovir O-[(Guanin-9-yl)Methyl] Acyclovir 166762-90-9 C14H16N10O4
Dehydro Azelnidipine Dehydro Azelnidipine 918659-10-6 C33H32N4O6
Ilaprazole Impurity 1 Ilaprazole Impurity 1
Ilaprazole Impurity 2 Ilaprazole Impurity 2
Esomeprazole Impurity 24 Esomeprazole Impurity 24
Eltrombopag Impurity 7 Eltrombopag Impurity 7
Azacitidine Impurity 37 Azacitidine Impurity 37 206269-46-7 C8H12N4O5
Acetic acid, 2-[[(1S,2R,4S)-4-[(dimethylamino)carbonyl]-2-[[(4,5,6,7-tetrahydro-5-methylthiazolo[5,4-c]pyridin-2-yl)carbonyl]amino]cyclohexyl]amino]-2-oxo-, ethyl ester Acetic acid, 2-[[(1S,2R,4S)-4-[(dimethylamino)carbonyl]-2-[[(4,5,6,7-tetrahydro-5-methylthiazolo[5,4-c]pyridin-2-yl)carbonyl]amino]cyclohexyl]amino]-2-oxo-, ethyl ester 480450-85-9 C21H31N5O5S
4(1H)-Pyridinone, 1-(6-methoxy-1H-benzimidazol-2-yl)-2,3,5-trimethyl- 4(1H)-Pyridinone, 1-(6-methoxy-1H-benzimidazol-2-yl)-2,3,5-trimethyl- 2512216-37-2 C16H17N3O2
6-Chloro-3,4-dihydro-4-methyl-3-oxo-2H-1,4-benzoxanine-8-carboxylic acid 6-Chloro-3,4-dihydro-4-methyl-3-oxo-2H-1,4-benzoxanine-8-carboxylic acid 123040-79-9 C10H8ClNO4
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