1,5-Naphthalenedisulfonic acid, 3,3'-((6-((2-hydroxyethyl)amino)-1,3,5-triazine-2,4-diyl)bis(imino(2-methyl-4,1-phenylene)azo))bis-, ion(4-), tetrakis(N,N,N-trimethylmethanaminium) 131013-83-7 Direct yellow 96, tetramethylammonium salt Methanaminium, N,N,N-trimethyl-, salt with 3,3'-((6-((2-hydroxyethyl)amino)-1,3,5-triazine-2,4-diyl)bis(imino(2-methyl-4,1-phenylene)azo))bis(1,5-naphthalenedisulfonic acid) (4:1)