1,1-DIPHENYLETHYLENE 1,1-Diphenylethene 530-48-3 AI3-06164 Benzene, 1,1'-ethenylidenebis- EINECS 208-482-6 Ethylene, 1,1-diphenyl- (8CI) NSC 57645 alpha,alpha-Diphenylethylene alpha-Methylene-diphenylmethane alpha-Phenylstyrene