POTASSIUM VINYLOXYBENZENESULFONATE, EINECS 246-641-1, Benzenesulfonic acid,4-(ethenyloxy)-,potassium salt (1:1), Benzenesulfonic acid,p-(vinyloxy)-,potassium salt (8CI), Benzenesulfonicacid,4-(ethenyloxy)-,potassium salt (9CI), Potassium vinyloxybenzenesulphonate