1,1′-[Methylenebis(sulfonyl)]bis[ethene]3278-22-6100 % similar (Ethylsulfonyl)ethene1889-59-457 % similar 1,3-Bis(ethenylsulfonyl)-2-propanol67006-32-050 % similar Divinyl sulfone77-77-042 % similar Sodium vinylsulfonate3039-83-638 % similar Methyl vinyl sulfone3680-02-236 % similar