84732-30-9 Benzenesulfonic acid, 4-((4-((4-(diethylamino)phenyl)azo)phenyl)azo)-, compd. with 2,2',2''-nitrilotris(ethanol) (1:1) EINECS 283-839-7 p-((p-((p-(Diethylamino)phenyl)azo)phenyl)azo)benzenesulphonic acid, compound with 2,2',2''-nitrilotriethanol (1:1)