2,7-Naphthalenedisulfonicacid, 4-amino-3,6-bis[(4-aminophenyl)azo]-5-hydroxy- (9CI);4-Amino-3,6-bis(p-aminophenylazo)-5-hydroxy-2,7-naphthalenedisulfonic acid;4-Amino-3,6-bis[(4-aminophenyl)azo]-5-hydroxy-2,7-naphthalenedisulfonic acid
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