129-96-4 2,7-Naphthalenedisulfonic acid, 4,5-dihydroxy-, disodium salt Chromotropic acid disodium salt Disodium 1,8-dihydroxylnaphthalene-3,6-disulfonate Disodium chromotropate Disodium naphthalene 1,8-dihydroxy-3,6-disulfonate Disodium-1,8-dihydroxynaphthalene-3,6-disulfonate NSC4883 Sodium 1,8-dioxynaphthalene-3,6-disulfonate Sodium chromotropate