1-Nitroso-3,6-disulfonate 140212-78-8 2,7-NAPHTHALENEDISULFONIC ACID, 3-HYDROXY-4-NITROSO-, DISODIUM SALT 2-Hydroxy-3-nitroso-2,7-naphthalenedisulfonic acid disodium salt 3-Hydroxy-4-nitroso-2,7-naphthalenedisulfonic acid disodium salt 525-05-3 AI3-22012 Disodium 1-nitroso-2-naphthol-3,6-disulfonate Disodium 3-hydroxy-4-nitrosonaphthalene-2,7-disulphonate EINECS 208-369-1 NSC 5044 Nitroso R Nitroso-R salt