Chromate(3-),bis[7-amino-4-(hydroxy-kO)-3-[[2-(hydroxy-kO)-4-nitrophenyl]azo-kN1]-2-naphthalenesulfonato(3-)]-, trihydrogen (9CI); Chromate(3-),bis[7-amino-4-hydroxy-3-[(2-hydroxy-4-nitrophenyl)azo]-2-naphthalenesulfonato(3-)]-,trihydrogen; 2-Naphthalenesulfonic acid,7-amino-4-hydroxy-3-[(2-hydroxy-4-nitrophenyl)azo]-, chromium complex
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