Synonyms: Benzene, 1,1',1'',1'''-(1,2-ethenediylidene)tetrakis[4-ethynyl-, Ethylene, tetrakis(p-ethynylphenyl)- (7CI,8CI); 1,1',1'',1'''-(1,2-Ethenediylidene)tetrakis[4-ethynylbenzene]; Tetrakis(4-ethynylphenyl)ethene; Tetrakis(4-ethynylphenyl)ethylene