| 英文同义词: | 4-[(6-hydroxy-5-nitro-m-tolyl)azo]-3-methyl-1-phenyl-2-pyrazolin-5-one;4-[(2-Hydroxy-3-nitro-5-methylphenyl)azo]-3-methyl-1-phenyl-2-pyrazolin-5-one;Einecs 239-922-5;3H-Pyrazol-3-one, 2,4-dihydro-4-[2-(2-hydroxy-5-methyl-3-nitrophenyl)diazenyl]-5-methyl-2-phenyl- |