22967-36-8

Trihydrogen (3-hydroxy-4-((2-hydroxy-1-naphthyl)azo)-7-nitronaphthalene-1-sulphonato(3-))(4-hydroxy-3-((2-hydroxy-5-nitrophenyl)azo)-6-(toluene-p-sulphonamido)naphthalene-2-sulphonato(3-))chromate(3-)