2-Naphthalenesulfonic acid, 7,7'-((6-(phenylamino)-1,3,5-triazine-2,4-diyl)diimino)bis(4-hydroxy-3-((2-hydroxy-5-(methylsulfonyl)phenyl)azo)-, disodium salt 72152-63-7 Disodium 7,7'-((6-(phenylamino)-1,3,5-triazine-2,4-diyl)diimino)bis(4-hydroxy-3-((2-hydroxy-5-(methylsulphonyl)phenyl)azo)naphthalene-2-sulphonate) EINECS 276-416-3