Synonyms: 1,3-Benzenedicarboxylicacid, 5-sulfo-, 1,3-dimethyl ester, potassium salt (9CI); Isophthalic acid,5-sulfo-, 1,3-dimethyl ester, potassium salt (8CI); Isophthalic acid, 5-sulfo-,dimethyl ester, potassium salt (7CI); Dimethyl 5-sulfoisophthalate, potassiumsalt; Potassium 3,5-bis(carbomethoxy)benzenesulfonate; Potassium dimethyl5-sulfoisophthalate; TLA 140