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Report a problem with 2-Naphthalenesulfonic acid, 4-hydroxy-7-[[4-[(2-hydroxyethyl)amino]-6-[[5-hydroxy-6-[(2-hydroxy-5-sulfophenyl)azo]-7-sulfo-2-naphthalenyl]amino]-1,3,5-triazin-2-yl]amino]-3-[(4-methoxy-2-sulfophenyl)azo]-, copper complex (EC: 617-877-6) (CAS 86543-85-3).