| 1 | 80742-13-8 | 硝苯地平杂质21 | Nifedipine Impurity 21 | C19H18N4O6
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| 2 | 80742-11-6 | 硝苯地平杂质7 | Nifedipine Pyrimidine Impurity | C19H18N4O6
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| 3 | 444924-21-4 | 1,4-bis{3-nitrobenzoyl}-1,4-diazepane | 1,4-bis{3-nitrobenzoyl}-1,4-diazepane | C19H18N4O6
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| 4 | 478046-40-1 | 1-(3-([(ANILINOCARBONYL)OXY]IMINO)CYCLOHEXYL)-2,4-DINITROBENZENE | 1-(3-([(ANILINOCARBONYL)OXY]IMINO)CYCLOHEXYL)-2,4-DINITROBENZENE | C19H18N4O6
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| 5 | | 2-[(2,4-Dinitrophenyl)(4-methoxybenzoyl)methylene]hexahydropyrimidine | 2-[(2,4-Dinitrophenyl)(4-methoxybenzoyl)methylene]hexahydropyrimidine | C19H18N4O6
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| 6 | 108139-78-2 | 2,4-双{2-硝基苯基} -6-甲基1,2,3,4-四氢-5-嘧啶羧酸甲酯 | methyl 2,4-bis{2-nitrophenyl}-6-methyl-1,2,3,4-tetrahydro-5-pyrimidinecarboxylate | C19H18N4O6
| 杂质对照品;对照品-杂质对照品 | |
| 7 | | (6R)-1,2,3,6-Tetrahydro-2,6-bis(2-nitrophenyl)-4-methylpyrimidine-5-carboxylic acid methyl ester | (6R)-1,2,3,6-Tetrahydro-2,6-bis(2-nitrophenyl)-4-methylpyrimidine-5-carboxylic acid methyl ester | C19H18N4O6
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| 8 | 72614-76-7 | 2-ethoxy-2-oxoethyl 4-[(5-cyano-1,6-dihydro-2-hydroxy-1,4-dimethyl-6-oxopyridin-3-yl)azo]benzoate | 2-ethoxy-2-oxoethyl 4-[(5-cyano-1,6-dihydro-2-hydroxy-1,4-dimethyl-6-oxopyridin-3-yl)azo]benzoate | C19H18N4O6
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| 9 | | 2-(2,6-dimethoxyphenyl)-5,6,8-trimethyl-4,5,6,7,8,9-hexahydropyrimido[5',4':5,6]pyrido[3,4-d][1,3]oxazole-4,7,9-trione | 2-(2,6-dimethoxyphenyl)-5,6,8-trimethyl-4,5,6,7,8,9-hexahydropyrimido[5',4':5,6]pyrido[3,4-d][1,3]oxazole-4,7,9-trione | C19H18N4O6
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| 10 | 82727-67-1 | 5-(6-hydroxy-1,3-dimethyl-2,4-dioxo-1,2,3,4-tetrahydro-5-pyrimidinyl)-1,3-dimethyl-1,5-dihydro-2H-chromeno[2,3-d]pyrimidine-2,4(3H)-dione | 5-(6-hydroxy-1,3-dimethyl-2,4-dioxo-1,2,3,4-tetrahydro-5-pyrimidinyl)-1,3-dimethyl-1,5-dihydro-2H-chromeno[2,3-d]pyrimidine-2,4(3H)-dione | C19H18N4O6
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