3,3'-Dimethoxy-4,4'-bis((2,4-diamino-5-sulfophenyl)azo)-1,1'-biphenyl, sodium ethoxylated triethanolamine salt 72869-88-6 Benzenesulfonic acid, 3,3'-((3,3'-dimethoxy(1,1'-biphenyl)-4,4'-diyl)bis(azo))bis(4,6-diamino-, sodium salt, compd. with alpha,alpha',alpha''-(nitrilotri-2,1-ethanediyl)tris(omega-hydroxypoly(oxy-1,2-ethanediyl))