1,4-二(4-溴苯基)丁烷-1,4-二酮

1,4-bis-(4-bromo-phenyl)-but-2-yne-1,4-dione

(Z)-1,4-bis(4-bromophenyl)but-2-ene-1,4-dione

1-bromo-4-bromoethynyl-benzene