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4-Amino-5-hydroxy-3-[(4-nitrophenyl)azo]-6-[(4-sulfophenyl)azo]-2,7-naphthalenedisulfonic acid Structure

4-Amino-5-hydroxy-3-[(4-nitrophenyl)azo]-6-[(4-sulfophenyl)azo]-2,7-naphthalenedisulfonic acid