英文别名
3,5-Dioxo-1,2-diphenyl-4--pyrazolidin;3,5-Dioxo-1,2-diphenyl-4--pyrazolidin;(3,5-dioxo-1,2-diphenyl-pyrazolidin-4-ylidene)-malonic acid diethyl ester;(3,5-Dioxo-1,2-diphenylpyrazolidin-4-ylidene)malonic acid diethyl ester;diethyl 2-(3,5-dioxo-1,2-diphenylpyrazolidin-4-ylidene)propanedioate