2-hydroxynaphthalene-6,8-disulfonic acid, G Acid, 2-hydroxy-6,8-naphthalenedisulfonic acid, 7-Hydroxy-1,3-naphthalenedisulfonic acid, 2-hydroxynaphthalene-6,8-disulfonate, 2-Naphthol-6,8-disulfonic acid, 1,7-hydroxy, 1,3-Naphthalenedisulfonic acid, 7-hydroxy-, |A acid, 2-naphthol-6,8-disulphonic acid, 7-hydroxy-1,3-naphthalenedisulfonic acid hydrate