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非洛地平杂质对照品 EP/USP的详细描述：

非洛地平杂质 Felodipine
非洛地平杂质A Imp. A (EP): Ethyl Methyl 4-(2,3-Dichlorophenyl)-2,6-dimethylpyridine-3,5-dicarboxylate
非洛地平杂质B Imp. B (EP): Dimethyl 4-(2,3-Dichlorophenyl)-2,6-dimethyl-1,4-dihydropyridine-3,5-dicarboxylate
非洛地平杂质C Imp. C (EP): Diethyl 4-(2,3-Dichlorophenyl)-2,6-dimethyl-1,4-dihydropyridine-3,5-dicarboxylate