Synonyms:
1-[2-[[4-[[2,5-dichloro-4-[(dimethylamino)sulphonyl]phenyl]azo]phenyl]ethylamino]ethyl]pyridinium chloride ; pyridinium,1-[2-[[4-[[2,5-dichloro-4-[(dimethylamino)sulfonyl]phenyl]azo]phenyl]ethylamino]ethyl]-,chloride (9ci) ; pyridinium,1-[2-[[4-[2-[2,5-dichloro-4-[(dimethylamino)sulfonyl]phenyl]diazenyl]phenyl]ethylamino]ethyl]-,chloride (1:1)