英文别名
                        Bis-<3,5-dioxo-1,2-diphenyl-pyrazolidinyl-(4)>-malonsaeure diaethylester;bis-(3,5-dioxo-1,2-diphenyl-pyrazolidin-4-yl)-malonic acid diethyl ester;Diethyl 2,2-bis(3,5-dioxo-1,2-diphenylpyrazolidin-4-yl)propanedioate;diethyl 2,2-bis(3,5-dioxo-1,2-diphenylpyrazolidin-4-yl)propanedioate