71598-25-9 Benzenesulfonic acid, 3-((4-(ethyl(phenylmethyl)amino)phenyl)azo)-4-((4-methylphenyl)sulfonyl)-, sodium salt EINECS 275-655-0 Sodium 3-((4-(ethyl(phenylmethyl)amino)phenyl)azo)-4-((4-methylphenyl)sulphonyl)benzenesulphonate