1,5-Naphthalenedisulfonic acid, 3,3'-((4-methyl-1,2-phenylene)bis(imino(6-chloro-1,3,5-triazine-4,2-diyl)imino(2-(acetylamino)-5-methoxy-4,1-phenylene)azo))bis-, tetrasodium salt 72906-25-3 EINECS 276-993-1 Tetrasodium 3,3'-((4-methyl-1,2-phenylene)bis(imino(6-chloro-1,3,5-triazine-4,2-diyl)imino(2-(acetylamino)-5-methoxy-4,1-phenylene)azo))bisnaphthalene-1,5-disulphonate