2-Naphthalenesulfonic acid, 4-hydroxy-7-((((5-hydroxy-6-((2-methoxyphenyl)azo)-7-sulfo-2-naphthalenyl)amino)carbonyl)amino)-3-((6-sulfo-2-naphthalenyl)azo)-, sodium salt, compd. with 2,2'-(methylimino)bis(ethanol) 83763-86-4 EINECS 280-775-1