Benzenesulfonicacid, 2-chloro-5-[5-hydroxy-4-(2-hydroxy-1-naphthylazo)-o-tolylazo]- (6CI);Benzenesulfonic acid,2-chloro-5-[[5-hydroxy-4-[(2-hydroxy-1-naphthalenyl)azo]-2-methylphenyl]azo]-(9CI)
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