4-Hydroxy-7-((((5-hydroxy-6-((2-methyl-5-sulphophenyl)azo)-7-sulpho-2-naphthyl)amino)carbonyl)amino)-3-(phenylazo)naphthalene-2-sulphonic acid, compound with 2,2',2''-nitrilotriethanol 60271-31-0 EINECS 262-136-9