英文别名Nifedipine Impurity 9; Nicardipine Impurity A; Nicardipine Cyclohexenone Impurity; methyl 3-methyl-3'-nitro-5-oxo-1,2,5,6-tetrahydro-[1,1'-biphenyl]-2-carboxylate; Nicardipine Impurity85; Methyl 2-methyl-6-(3-nitrophenyl)4-oxocyclohex-2-ene-1-carboxylate; Nifedipine Impurity 33 
