1-Naphthalenesulfonicacid, 4-hydroxy-3-[(4-sulfo-1-naphthalenyl)azo]- (9CI); 1-Naphthol-4-sulfonicacid, 2-(4-sulfo-1-naphthylazo)- (6CI); C.I. Acid Red 14, free acid (7CI,8CI)
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