Synonyms: Benzenesulfonic acid, 4-(2-(2-hydroxy-1-naphthalenyl)diazenyl)-, compd. with N-octyl-1-octanamine (1:1);Benzenesulfonic acid, 4-((2-hydroxy-1-naphthalenyl)azo)-, dioctylamine salt;Benzenesulfonic acid, 4-((2-hydroxy-1-naphthalenyl)azo)-, compd. with N-octyl-1-octanamine (1:1);p-((2-Hydroxy-1-naphthyl)azo)benzenesulphonic acid, compound with dioctylamine (1:1);4-[(2Z)-2-(2-oxonaphthalen-1(2H)-ylidene)hydrazinyl]benzenesulfonic acid - N-octyloctan-1-amine (1:1)