4-butan-2-yl-1,5-dimethyl-2-phenylpyrazol-3-one

5-氧代-1-苯基-2,5-二氢-1H-吡唑-3-羧酸

5-methyl-2-phenyl-4-(phenylhydrazinylidene)pyrazol-3-one

N-去甲基异丙安替比林

(4-acetyl-5-methyl-2-phenylpyrazol-3-yl) acetate