78480-24-7 Benzoic acid, 4,4'-((carbonyldiimino)bis((1-hydroxy-3-sulfo-6,2-naphthalenediyl)azo))bis-, sodium salt, compd. with 2,2',2''-nitrilotris(ethanol) Benzoic acid, 4,4'-(ureylenebis((1-hydroxy-3-sulfo-6,2-naphthylene)azo))di-, sodium triethanolamine salts (1:x:x)