1-Nitroso-2-naphthol-3,6-disulfonic acid sodium salt

1-nitroso-2-naphthol-3,6-disulfonic acid disodium salt ; 2,7-naphthalenedisulfonicacid, 3-hydroxy-4-nitroso-, sodium salt (1:?) ; labotest-bb lt00454615 ; 2-hydroxy-1-nitroso-3,6-naphthalenedisulfonic acid disodium salt ; 2,7-naphthalenedisulfonicacid, 3-hydroxy-4-nitroso-, sodium salt (8ci,9ci) ; 1-nitroso-2-naphthol-3,6-disulfonicacid sodium salt ; disodium 3-hydroxy-4-nitroso-2,7-naphthalenedisulfonate ; 3-hydroxy-4-nitroso-2,7-naphthalenedisulfonic acid disodium salt ; nitroso-r-salt ; disodium 1-nitroso-2-naphthol-3,6-disulfonate