Sodium 4-vinylbenzenesulfonate hydrate, 4-Vinylbenzenesulfonic Acid Sodium Salt Hydrate, Sodium p-Styrenesulfonate, 4-Vinylbenzenesulfonic acid sodium salt, p-Vinylbenzenesulphonic acid sodium salt, sodium styrene sulphonate, p-styrenesulfonic acid sodium salt, sodium styrene sulfonate, sodium styrene-4-sulphonate, Styrene-4-sulfonic acid sodium salt, Sodium 4-vinylbenzenesulphonate, sodium 4-styrenesulfonate, Sodium 4-vinylbenzenesulfonate, SPINOMAR NaSS