diethyl 2-(diphenylmethylene)malonate, benzhydrylidene-malonic acid diethyl ester, Benzhydryliden-malonsaeure-diaethylester, 2-Aethoxycarbonyl-3,3-diphenyl-acrylsaeure-aethylester, diethyl 2-(diphenylmethylidene)malonate, diethyl 2-[di(phenyl)methylidene]propanedioate, Diethyl (diphenylmethylene)malonate