117-46-4 2,7-Naphthalenedisulfonic acid, 4-(benzoylamino)-5-hydroxy- 2,7-Naphthalenedisulfonic acid, 4-benzamido-5-hydroxy- (8CI) 4-(Benzoylamino)-5-hydroxynaphthalene-2,7-disulphonic acid EINECS 204-192-9 H Acid, N-benzoyl- NSC 16169