2,7-Naphthalenedisulfonic acid, 3-hydroxy-4-((4-(phenylazo)phenyl)azo)-, compd. with N-octyl-1-octanamine (1:2) 3,6-Naphthalenedisulfonic acid, 7-hydroxy-8-((4-(phenylazo)phenyl)azo)-, dioctylamine salt (1:2) 3-Hydroxy-4-((4-(phenylazo)phenyl)azo)naphthalene-2,7-disulphonic acid, compound with dioctylamine (1:2) 70693-54-8 EINECS 274-770-3