2-Naphthalenesulfonic acid, 7,7'-(carbonyldiimino)bis(4-hydroxy-3-((6-sulfo-2-naphthalenyl)azo)-, compd. with 2,2',2''-nitrilotris(ethanol) (1:4) 36596-36-8 7,7'-(Carbonyldiimino)bis(4-hydroxy-3-((6-sulpho-2-naphthyl)azo)naphthalene-2-sulphonic) acid, compound with 2,2',2''-nitrilotriethanol (1:4) EINECS 253-122-3