6-amino-3-[(4-aminophenyl)azo]-4-hydroxynaphthalene-2-sulphonic acid;6-Amino-3-(4-aminophenylazo)-4-hydroxy-2-naphthalenesulfonic acid;2-Naphthalenesulfonic acid, 6-amino-3-((4-aminophenyl)azo)-4-hydroxy-;2-Naphthalenesulfonic acid, 6-amino-3-(2-(4-aminophenyl)diazenyl)-4-hydroxy-;Einecs 267-619-8
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