1-(2-((4-((2,6-Dichloro-4-((dimethylamino)sulfonyl)phenyl)azo)phenyl)ethylamino)ethyl)pyridinium chloride 1-(2-((4-((2,6-Dichloro-4-((dimethylamino)sulphonyl)phenyl)azo)phenyl)ethylamino)ethyl)pyridinium chloride 10189-42-1 EINECS 233-458-7 Pyridinium, 1-(2-((4-((2,6-dichloro-4-((dimethylamino)sulfonyl)phenyl)azo)phenyl)ethylamino)ethyl)-, chloride