1,3-Benzenedicarboxylic acid, 5-sulfo-, monosodium salt 3,5-Dicarboxybenzenesulfonic acid, sodium salt 3,5-Dikarboxybenzensulfonan sodny [Czech] 6362-79-4 90021-69-5 Benzene-1,3-dicarboxylic acid, 5-sulfo-, monosodium salt Benzenesulfonic acid, 3,5-dicarboxy-, sodium salt EINECS 228-845-2 Isophthalic acid, 5-sulfo-, monosodium salt Kyselina 3,5-dikarboxybenzensulfonova sodny [Czech] Sodium hydrogen-5-sulphoisophthalate