1-Naphthalenesulfonicacid, 3-hydroxy-4-[(2-hydroxy-1-naphthalenyl)azo]-7-nitro- (9CI); C.I. MordantBlack 1 (8CI); C.I. Mordant Black 1, free acid (7CI); Solochrome Black AS,(free acid) (6CI); 1-(2-Hydroxy-4-sulfo-6-nitro-1-naphthylazo)-2-naphthol
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