1208-67-9 4-Sulfophenylmethallyl ether Benzenesulfonic acid, 4-((2-methyl-2-propenyl)oxy)-, sodium salt EINECS 214-901-3 Sodium 4-(2-methylprop-2-en-1-yl)benzenesulphonate p-Sulfophenyl methallyl ether, sodium salt