Synonyms: 1H-Benzimidazolium,5,6-dichloro-1-ethyl-2-methyl-3-(3-sulfopropyl)-, hydroxide, inner salt;Benzimidazolium, 5,6-dichloro-1-ethyl-2-methyl-3-(3-sulfopropyl)-, hydroxide,inner salt (8CI); 1-Ethyl-2-methyl-3-(g-sulfopropyl)-5,6-dichlorobenzimidazolium betaine