1,3-Naphthalenedisulfonic acid, 7-hydroxy-8-((4-(phenylazo)phenyl)azo)-, compd. with N-octyl-1-octanamine (1:2) 1,3-Naphthalenedisulfonic acid, 7-hydroxy-8-((4-(phenylazo)phenyl)azo)-, dioctylamine salt (1:2) 7-Hydroxy-8-((4-(phenylazo)phenyl)azo)naphthalene-1,3-disulphonic acid, compound with dioctylamine (1:2) 70703-45-6 EINECS 274-786-0