Polystyrene sulfonate; 4-ethenylbenzenesulfonic acid; 4-Styrenesulfonic acid; 4-vinylbenzenesulfonic acid; styrene-4-sulphonic acid; Benzenesulfonic acid, 4-ethenyl-; Polystyrene sulfonic acid; Tolevamer [INN]; 4-Styrenesulfonic acid sodium salt hydrate; p-Vinylbenzenesulfonic acid; Sodium polystyrene sulfonate; Benzenesulfonic acid, 4-ethenyl-, homopolymer; 4-Ethenylbenzenesulfonic acid homopolymer; Styrenesulfonic acid polymer; Poly(4-vinylbenzenesulfonic acid)(30 wt. % in H2O); Poly(sodium p-styrenesulfonate); Sodium polystyrene sulfonic acid Cas :9003-59-2