4,6-dihydroxy-naphthalene-2-sulfonic acid, DIHYDROXY-G-SALT, 4,6-Dihydroxy-naphthalin-2-sulfonsaeure, DIOXY G ACID, 1-hydroxy-3-sulpho-7-hydroxy-naphthalene, 2,8-Dihydroxy-6-sulpho naphthalene, 4,6-Dihydroxynaphthalene-2-sulphonic acid, 2,8-dihydroxynaphthalene-6-sulphonic acid, 2,8-dihydroxynaphthalene-6-sulfonic acid, EINECS 228-757-4