英文同义词: | 4-(N-methyl-N-nitroso)aminoantipyrine;1,2-Dihydro-1,5-dimethyl-4-(methylnitrosoamino)-2-phenyl-3H-pyrazol-3-one;MNAA;N-Nitrosomethylaminoantipyrine;S-75-2230;3H-Pyrazol-3-one, 1,2-dihydro-1,5-dimethyl-4-(methylnitrosoamino)-2-phenyl-;N-(1,5-Dimethyl-3-oxo-2-phenyl-2,3-dihydro-1H-pyrazol-4-yl)-N-methylnitrous amide;N-Nitroso Metamizole EP Impurity C |