英文别名4,4'-ddnu; 1,1-Bis(4-chlorophenyl)ethene; 1,1-Di(4-chlorophenyl)ethene; 1,1'-Ethenylidenebis(4-chlorobenzene); 1,1-bis(p-chlorophenyl)ethene; 2,2-Bis(4-chlorophenyl)ethene; 4,4'-Vinylidenebis(chlorobenzene); 1-chloro-4-[1-(4-chlorophenyl)ethenyl]benzene; DMC ethylene; DDNU