Synonyms: Benzene,1,1'-[1,2-ethenediylbis(sulfonyl)]bis-, (Z)-; Ethylene,1,2-bis(phenylsulfonyl)-, (Z)- (8CI); (Z)-1,2-Bis(benzenesulfonyl)ethylene;(Z)-1,2-Di(phenylsulfonyl)ethylene; Z-1,2-Bis(phenylsulfonyl)ethylene;cis-1,2-Bis(phenylsulfonyl)ethylene; cis-1,2-Di(phenylsulfonyl)ethylene;cis-Bis(phenylsulfonyl)ethylene