1,5-Naphthalenedisulfonic acid, disodium salt 1,5-Naphthalenedisulfonic acid, monosodium salt 1655-29-4 Disodium 1,5-naphthalenedisulfonate NSC12189 Sodium 1,5-naphthalenedisulfonate Sodium salt of naphthalene-1,5-disulfonic acid