2,7-Naphthalenedisulfonicacid, 6-(acetylamino)-3-[[4-(aminosulfonyl)phenyl]azo]-4-hydroxy- (9CI);2,7-Naphthalenedisulfonic acid,6-acetamido-4-hydroxy-3-[(p-sulfamoylphenyl)azo]- (8CI);2-(4-Sulfamylphenylazo)-7-acetamido-1-hydroxynaphthalene-3,6-disulfonic acid;Neoprontosil; Prontosil II
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