(4E)-4-{[4-(二甲基氨基)苯基]亚氨基}-5-甲基-2-苯基-2,4-二氢-3H-吡唑-3-酮

5-methyl-4-nitroso-2-phenylpyrazol-3-amine

盐酸

5-methyl-2-phenyl-4-(propan-2-ylidene)-2,4-dihydro-3H-pyrazol-3-one