英文别名
                        2-<1.2-Diphenyl-cyclopropenyliden>-bernsteinsaeure-dimethylester;1,2-Diphenyl-3-<1,2-dimethoxycarbonyl-aethyliden>-cyclopropen-1;1,4-Dimethyl 2-(2,3-diphenyl-2-cyclopropen-1-ylidene)butanedioate;dimethyl 2-(2,3-diphenylcycloprop-2-en-1-ylidene)butanedioate