Similar names: 1,3-Benzenedicarboxylic acid, 5-sulfo-, monosodium salt (9CI); Isophthalic acid, 5-sulfo-, 5-sodium salt (7CI); Isophthalic acid, 5-sulfo-, monosodium salt (8CI); 5-Sodiosulfoisophthalic acid; 5-Sulfo-1,3-benzenedicarboxylic acid sodium salt; 5-Sulfoisophthalic acid monosodium salt; Delion HS; Monosodium 1,3-dicarboxybenzene-5-sulfonate; Monosodium 5-sulfatoisophthalate; Monosodium 5-sulfoisophthalate; Monosodium 5-sulfoisophthalic acid; Sodium 3,5-dicarboxybenzene-1-sulfonate; Sodium 3,5-dicarboxybenzenesulfonate; Sodium 5-sulfoisophthalate; Sodium 5-sulfoisophthalic acid; Sodium 5-sulfonatoisophthalate; Sulfoisophthalic acid sodium salt; 5-Sulfoisophthalic acid sodium