Trisodium 4-amino-5-hydroxy-3-((4-((2-oxo-1-((phenylamino)carbonyl)propyl)azo)phenyl)azo)-6-((4-sulphonatophenyl)azo)naphthalene-2,7-disulphonate;trisodium (3E)-5-amino-6-[(E)-(4-{(E)-[1,3-dioxo-1-(phenylamino)butan-2-yl]diazenyl}phenyl)diazenyl]-4-oxo-3-[2-(4-sulfonatophenyl)hydrazinylidene]-3,4-dihydronaphthalene-2,7-disulfonate
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