Synonyms: Benzenesulfonicacid,3-[5-(3-ethyl-4-oxo-2-thioxo-5-thiazolidinylidene)-4-methyl-2-thioxo-1,3,4-thiadiazolidin-3-yl]-,sodium salt (9CI); Benzenesulfonic acid,m-[5-(3-ethyl-4-oxo-2-thioxo-5-thiazolidinylidene)-4-methyl-2-thioxo-1,3,4-thiadiazolidin-3-yl]-,sodium salt (7CI,8CI)