| Structure |
Chemical Name |
CAS |
MF |
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N-Nitroso Aprocitentan |
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4-((2S,4S)-4-butoxy-1-((5-methoxy-7-methyl-1H-indol-4-yl)methyl)piperidin-2-yl)benzoic acid |
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4-[[(1S)-1-carboxy-2-(4-hydroxyphenyl)ethyl]amino]-4-xobutanoic acid |
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(2R,3R)-2-(4-(cyclopentylamino)phenyl)-1-(2-fluoro-6-methylbenzoyl)-N-(4-methyl-3-(trifluoromethyl)phenyl)piperidine-3-carboxamide |
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![1H-Indole-2-carboxylic acid, 1-[(1S,2S)-1-(2,5-dihydro-5-oxo-1,2,4-oxadiazol-3-yl)-2-methylcyclopropyl]-5-[(4R)-tetrahydro-2,2-dimethyl-2H-pyran-4-yl]-](/CAS/20240320/GIF/3067284-94-7.gif) |
1H-Indole-2-carboxylic acid, 1-[(1S,2S)-1-(2,5-dihydro-5-oxo-1,2,4-oxadiazol-3-yl)-2-methylcyclopropyl]-5-[(4R)-tetrahydro-2,2-dimethyl-2H-pyran-4-yl]- |
3067284-94-7 |
C22H25N3O5 |
 |
Pirodavir Impurity 1 |
124437-13-4 |
C23H31N3O3 |
![Acetic acid, 2-[(4-oxo-2-phenyl-4H-1-benzopyran-7-yl)oxy]-, methyl ester](/CAS/20210305/GIF/27654-54-2.gif) |
Acetic acid, 2-[(4-oxo-2-phenyl-4H-1-benzopyran-7-yl)oxy]-, methyl ester |
27654-54-2 |
C18H14O5 |
 |
Tallimustine Impurity 2 |
194483-41-5 |
C34H42Cl2N10O4 |
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Cefoselis Impurity 1 |
2630910-59-5 |
C19H22N8O6S2 |
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1-Naphthaleneethanol,decahydro-2-hydroxy- 2,5,5,8a-tetramethyl-,(1R,2R,4aS,8aS)- |
38419-75-9 |
C16H30O2 |
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Pyridoxine Impurity 32 |
19203-53-3 |
C16H20N2O5 |
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N-Nitroso Racecadotril |
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Semaglutide Impurity 9 (L-2-Oxohistidine) |
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5-((1-((4-methyl-5-oxo-4,5-dihydro-1H-1,2,4-triazol-3-yl)methyl)-2- oxo-4-(trifluoromethyl)-1,2-dihydropyridin-3-yl)oxy)isophthalonitrile |
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1,2-Cyclopropanedimethanol, 1-(3-fluorophenyl)-, 1,2-diacetate, (1S,2R)- |
1369768-30-8 |
C15H17FO4 |
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3-chloro-5-((1-((4-methyl-5-oxo-4,5-dihydro-1H-1,2,4-triazol-3-yl)methyl)-2-oxo-4-(trifluoromethyl)-1,2-dihydropyridin-3-yl)oxy)benzoic acid |
3056231-13-8 |
C17H12ClF3N4O5 |
 |
3-chloro-5-((1-((4-methyl-1-((4-methyl-5-oxo-4,5-dihydro-1H-1,2,4-triazol-3-yl)methyl)-5-oxo-4,5-dihydro-1H-1,2,4-triazol-3-yl)methyl)-2-oxo-4-(trifluoromethyl)-1,2-dihydropyridin-3-yl)oxy)benzonitrile |
2054541-33-0 |
C21H16ClF3N8O4 |
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Finerenone Impurity 123 |
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1H-Benzimidazol-2-amine, 5,6-dichloro-N-(1-methylethyl)-1-α-L-ribofuranosyl- |
176161-49-2 |
C15H19Cl2N3O4 |
![1H-Indeno[5,4-f]quinoline-7-carboxamide, N-[2,5-bis(trifluoromethyl)phenyl]-2,4a,4b,5,6,6a,7,8,9,9a,9b,10-dodecahydro-4a,6a-dimethyl-2-oxo-, (4aR,4bS,6aS,7R,9aS,9bS)-](/CAS/20250703/GIF/3088800-46-5.gif) |
1H-Indeno[5,4-f]quinoline-7-carboxamide, N-[2,5-bis(trifluoromethyl)phenyl]-2,4a,4b,5,6,6a,7,8,9,9a,9b,10-dodecahydro-4a,6a-dimethyl-2-oxo-, (4aR,4bS,6aS,7R,9aS,9bS)- |
3088800-46-5 |
C27H28F6N2O2 |
 |
22,23-Didehydro SelaMectin |
165108-09-8 |
C43H61NO11 |
![4-amino-5-ethylsulfonyl-2-methoxy-N-[[1-(1,1,2,2,2-pentadeuterioethyl)pyrrolidin-2-yl]methyl]benzamide](/CAS/20180528/GIF/1216626-17-3.gif) |
4-amino-5-ethylsulfonyl-2-methoxy-N-[[1-(1,1,2,2,2-pentadeuterioethyl)pyrrolidin-2-yl]methyl]benzamide |
1216626-17-3 |
C17H22D5N3O4S |
 |
1H-Benzimidazol-2-amine, 5,6-dichloro-N-(1-methylethyl)-1-(2,3,5-tri-O-acetyl-β-L-ribofuranosyl)- |
176161-56-1 |
C21H25Cl2N3O7 |
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Siponimod Impurity 10 |
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Nemonoxacin Impurity 8 |
2770004-82-3 |
C24H29N3O8 |
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Lemborexant impurity 14 |
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2-(hydroxy(phenyl)methyl)-N-(2-hydroxyethyl)benzamide |
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4'-O-2,6-Dideoxy-3-O-Methyl-α-L-arabino-hexopyranosyl SelaMectin |
301849-46-7 |
C50H75NO14 |
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Androsta-4,8(14)-dien-3-one, 17-hydroxy-, (17β)- (9CI) |
133177-83-0 |
C19H26O2 |
 |
Benzeneacetic acid, α-hydroxy-, (1R,5R)-3,3,5-trimethylcyclohexyl ester, (αR)-rel- |
79356-86-8 |
C17H24O3 |
![(1R,2S)-2-[[(2,4-Dimethyl-5-pyrimidinyl)oxy]methyl]-2-(3-fluorophenyl)-N-2-pyridinylcyclopropanecarboxamide](/CAS/20210305/GIF/1369763-94-9.gif) |
(1R,2S)-2-[[(2,4-Dimethyl-5-pyrimidinyl)oxy]methyl]-2-(3-fluorophenyl)-N-2-pyridinylcyclopropanecarboxamide |
1369763-94-9 |
C22H21FN4O2 |
 |
Propanoic acid, 2,2-dimethyl-, 2-chloroethyl ester |
51479-37-9 |
C7H13ClO2 |
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3-(4,6-diamino-5-((methoxycarbonyl)amino)pyrimidin-2-yl)-5-fluoro-1-(2-fluorobenzyl)-1H-pyrazolo[3,4-b]pyridine 7-oxide |
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Cyclophosphamide impurity 30 |
2924754-60-7 |
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Exatecan Metabolite 1 (UM-1 (1RS)-Isomer) Acetate (Mixture of Diastereomers) |
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Cyclophosphamide Impurity 8 |
90632-33-0 |
C7H17N2O4P |
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(S)-Baclofen-d4 |
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MetaMizole IMpurity C (4-MethylaMinoantipyrine) HCl |
856307-27-2 |
C12H16ClN3O |
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Avibactam impurity 28 |
2064219-14-1 |
C14H16N2O4 |
 |
Sulbactam-d5 |
1322880-00-1 |
C8H6D5NO5S |
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Lemborexant impurity 13 |
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Risperidone EP Impurity M-d4 HCl
(Paliperidone USP Related Compound B-d4 HCl) |
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アンピシリン-D5 |
1426173-65-0 |
C16H14D5N3O4S |
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Despropoxy Ethoxy Udenafil |
268204-07-5 |
C24H34N6O4S |
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Avermectin A1a, 25-cyclohexyl-4'-O-de(2,6-dideoxy-3-O-methyl-α-L-arabino-hexopyranosyl)-5-demethoxy-25-de(1-methylpropyl)-22,23-dihydro-23-hydroxy-5-(hydroxyimino)-, (23S)- (9CI) |
165108-08-7 |
C43H63NO12 |
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Osimertinib Impurity 15 |
2945220-41-5 |
C56H66N14O4 |
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Hydrocortisone Impurity 58 Disodium Salt (Mixture of Diastereomers) |
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Levomepromazine EP Impurity D HCl |
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Radicicol Impurity 1 |
459126-69-3 |
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3-((1-((4-methyl-5-oxo-4,5-dihydro-1H-1,2,4-triazol-3-yl)methyl)-2-oxo-4-(trifluoromethyl)-1,2-dihydropyridin-3-yl)oxy)benzonitrile |
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(2R,3R,4S,5R,6R)-6-((1S,2S)-2-chloro-1-((2S,4R)-1-methyl-4- propylpyrrolidine-2-carboxamido)propyl)-4,5-dihydroxy-2-((S)- methylsulfinyl)tetrahydro-2H-pyran-3-yl dihydrogen phosphate |
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JUJUBAE FRUCTUS |
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3-bromo-5-((1-((4-methyl-5-oxo-4,5-dihydro-1H-1,2,4-triazol-3-yl) methyl)-2-oxo-4-(trifluoromethyl)-1,2-dihydropyridin-3-yl)oxy) benzonitrile |
2994626-87-6 |
C17H11BrF3N5O3 |
![5-(difluoromethoxy)-2-[(3,4-dimethoxypyridin-2-yl)methylsulfinyl]-1-(trideuteriomethyl)benzimidazole](/CAS/20180601/GIF/1190008-84-4.gif) |
5-(difluoromethoxy)-2-[(3,4-dimethoxypyridin-2-yl)methylsulfinyl]-1-(trideuteriomethyl)benzimidazole |
1190008-84-4 |
C17H14D3F2N3O4S |
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Biapenem Impurity B |
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4,6-diamino-2-(5-fluoro-1-(2-fluorobenzyl)-1H-pyrazolo[3,4-b]pyridin-3-yl)-5-((methoxycarbonyl)amino)pyrimidine 1-oxide |
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(4S,4aR,5S,5aR,6R,12aS)-3,5,10,12,12a-pentahydroxy-6-methyl-4-(methyl(nitroso)amino)-1,11-dioxo-1,4,4a,5,5a,6,11,12a-octahydrotetracene-2-carboxamide |
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N-(4-methoxy-5-((3-((4-methoxy-2-(4-(3-methoxyazetidin-1-yl)piperidin-1-yl)-5-((6-(1-methyl-1H-indazol-5-yl)pyrimidin-4-yl)amino)phenyl)amino)-3-oxopropyl)amino)-2-(4-(3-methoxyazetidin-1-yl)piperidin-1-yl)phenyl)acrylamide |
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tert-butyl (2-methoxy-6-nitro-4-(4-oxopiperidin-1-yl)phenyl)carbamate |
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(R)-(2-(6-chloro-7-methyl-1H-benzo[d]imidazol-2-yl)-2-methylpyrrolidin-1-yl)(5-methoxy-2-(2H-1,2,3-triazol-2-yl)phenyl)methanone |
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Ibrexafungerp intermediates |
1207755-36-9 |
C52H77NO7S |
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Aciclovir Impurity 7 |
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![Methanone, [(2S)-2-(6-chloro-7-methyl-1H-benzimidazol-2-yl)-2-methyl-1-pyrrolidinyl][5-hydroxy-2-(2H-1,2,3-triazol-2-yl)phenyl]-](/CAS/20210305/GIF/2901043-05-6.gif) |
Methanone, [(2S)-2-(6-chloro-7-methyl-1H-benzimidazol-2-yl)-2-methyl-1-pyrrolidinyl][5-hydroxy-2-(2H-1,2,3-triazol-2-yl)phenyl]- |
2901043-05-6 |
C22H21ClN6O2 |
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(1S,2R)-2-(((2,4-dimethylpyrimidin-5-yl)oxy)methyl)-2-(3-fluorophenyl)-N-(5-fluoropyridin-2-yl)cyclopropanecarboxamide |
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Nemonoxacin |
378746-64-6 |
C20H25N3O4 |
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Tretinoin-d6 (Retinoic Acid-d6, Isotretinoin EP Impurity A-d6) |
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N-(4-methoxy-2-(4-(3-methoxyazetidin-1-yl)piperidin-1-yl)-5-((6-(1-methyl-1H-indazol-5-yl)pyrimidin-4-yl)amino)phenyl)-N-(3-((4-methoxy-2-(4-(3-methoxyazetidin-1-yl)piperidin-1-yl)-5-((6-(1-methyl-1H-indazol-5-yl)pyrimidin-4-yl)amino)phenyl)amino)-3-oxopropyl)acrylamide |
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Dexmedetomidine Impurity 4 |
1061620-86-7 |
C19H24N2O6 |
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Favipravir Impurity 10 |
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Axitinib N-Glucuronide (M7) |
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 |
951163-66-9 |
951163-66-9 |
C18H17BFNO8 |
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LANTHANUM STANDARD SOLUTION |
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La |
![1-デオキシ-1-[[3,4-ジメチル-2-(フェニルアゾ)フェニル]アミノ]-D-リビトール](/CAS/20200611/GIF/21037-25-2.gif) |
1-デオキシ-1-[[3,4-ジメチル-2-(フェニルアゾ)フェニル]アミノ]-D-リビトール |
21037-25-2 |
C19H25N3O4 |
 |
3-Pyrazolidinone, 5-cyclopentyl-, (5R)-, (2S,3S)-2,3-dihydroxybutanedioate (1:1) |
2102675-37-4 |
C12H20N2O7 |
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N-(4-methoxy-2-(4-(3-methoxyazetidin-1-yl)piperidin-1-yl)-5-((6-(2- methyl-2H-indazol-5-yl)pyrimidin-4-yl)amino)phenyl)acrylamide |
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Valaciclovir EP Impurity O |
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Spectinomycin EP Impurity C |
63393-23-7 |
C14H26N2O7 |
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5,9,13,17-Nonadecatetraen-2-one, 6,10,14,18-tetramethyl-, (Z,E,Z)- (8CI) |
3879-25-2 |
C23H38O |
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N-Nitroso Macitentan |
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(R)-2-(3-(((3-(4-methoxyphenoxy)propyl)amino)methyl)phenoxy)butanoic acid |
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3-chloro-5-((1-((4-ethyl-5-oxo-4,5-dihydro-1H-1,2,4-triazol-3-yl)methyl)-2-oxo-4-(trifluoromethyl)-1,2-dihydropyridin-3-yl)oxy)benzonitrile |
1338225-98-1 |
C18H13ClF3N5O3 |
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tert-butyl (4-(4-(3-chloroazetidin-1-yl)piperidin-1-yl)-2-methoxy-5- nitrophenyl)carbamate |
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 |
ドコサン酸とプロパン-1，2，3-トリオールのモノエステル |
30233-64-8 |
C25H50O4 |
![(S)-6-chloro-7-methyl-2-(2-methyl-1-nitrosopyrrolidin-2-yl)-1H-benzo[d]imidazole](/CAS/20250703/GIF/3112735-67-5.gif) |
(S)-6-chloro-7-methyl-2-(2-methyl-1-nitrosopyrrolidin-2-yl)-1H-benzo[d]imidazole |
3112735-67-5 |
C13H15ClN4O |
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Fenbendazole EP Impurity C |
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6-(1-methyl-1H-indazol-5-yl)pyrimidin-4-ol |
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ethyl 3-(2,4-difluoro-3-methoxyphenyl)-3-oxopropanoate |
221221-12-1 |
C12H12F2O4 |
 |
Brivaracetam-d7 |
1202896-51-2 |
C11H20N2O2 |
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4,4'-((2S,2'S,4S,4'S)-((methylenebis(5-methoxy-7-methyl-1H-indole-3,4-diyl))bis(methylene))bis(4-ethoxypiperidine-1,2-diyl))dibenzoic acid |
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![N-formyl-1-(4-methoxyphenyl)-7-oxo-6-(4-(2-oxopiperidin-1-yl)phenyl)-4,5,6,7-tetrahydro-1H-pyrazolo[3,4-c]pyridine-3-carboxamide](/CAS/20180703/GIF/1351611-14-7.gif) |
N-formyl-1-(4-methoxyphenyl)-7-oxo-6-(4-(2-oxopiperidin-1-yl)phenyl)-4,5,6,7-tetrahydro-1H-pyrazolo[3,4-c]pyridine-3-carboxamide |
1351611-14-7 |
C26H25N5O5 |
 |
Tocopherol Impurity 1 |
3808-26-2 |
C29H48O2 |
 |
951313-25-0 |
951313-25-0 |
C25H33N3O6 |
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Estriol Impurity 2 Sodium Salt |
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 |
rac-NR-2501-13C2-d4 |
3029020-57-0 |
C20H20ClF5N4O2S |
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((2S,5R)-2-carbamoyl-5-((sulfooxy)amino)piperidine-1-carbonyl)-L-arginine |
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N-nitroso-levomethoate 1 |
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フルオリド |
16984-48-8 |
F- |
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Aztreonam USP Impurity B |
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Cyclophosphamide Impurity 20 |
2387771-96-0 |
C9H20ClN2O3P |
 |
Dehydrocarteolol Hydrochloride |
62330-84-1 |
C16H22N2O3 |