4-((4-(Bis(2-hydroxyethyl)amino)phenyl)azo)-2,5-dichloro-N-(2-chloroethyl)benzenesulphonamide 70865-32-6 Benzenesulfonamide, 4-((4-(bis(2-hydroxyethyl)amino)phenyl)azo)-2,5-dichloro-N-(2-chloroethyl)- EINECS 274-960-6