1,3-Naphthalenedisulfonic acid, 7-hydroxy-8-((4-(phenylazo)phenyl)azo)-, compd. with N-cyclohexylcyclohexanamine 6226-87-5 7-Hydroxy-8-((4-(phenylazo)phenyl)azo)naphthalene-1,3-disulphonic acid, compound with dicyclohexylamine EINECS 228-321-3