sodium salt of naphthalene-1,5-disulphonate, 1,5-Naphthalenedisulfonic Acid Hydrate Disodium Salt, 1,5-Naphthalenedisulphonic acid disodium salt, 1,5-NAPHTHALENEDISULFONIC ACID,NA SALT, Armstrong acid disodium salt, naphthalene-1,5-disulphonic acid disodium salt, sodium 1,5-naphthalenedisulfonic acid tetrahydrate, Naphthalin-1,5-disulfonsure,Dinatriumsalz, Disodium 1,5-naphthalenesulfonate, DISODIUM NAPHTHALENE-1,5-DISULPHONATE, DISODIUM-1,5-NAPHTHALENEDISULFONICACID, Naphthalene-1,5-Disulfonic Acid Disodium Salts, 1,5-dinaphthalenesulphonic acid sodium salt, Sodium1,5-naphthalenedisulfonate, SODIUM 1,5-NAPHTHALENEDISULFONATE DIBASIC, 1,5-naphthalenedisulfonic acid disodium salt, DISODIUM 1,5-NAPHTHALENEDISULFONATE HYDRATE