1,3-Naphthalenedisulfonic acid, 7-hydroxy-8-((4-(phenylazo)phenyl)azo)-, compd. with 2-ethyl-N-(2-ethylhexyl)-1-hexanamine (1:2) 1-((4-(Phenylazo)phenyl)azo)-2-hydroxy-6,8-naphthalenedisulfonic acid, di(2-ethylhexyl)ammonium salt (1:2) 68555-82-8 7-Hydroxy-8-((4-(phenylazo)phenyl)azo)naphthalene-1,3-disulphonic acid, compound with 2-ethyl-N-(2-ethylhexyl)hexylamine (1:2) EINECS 271-461-5