1-(2-(Acetoxy)-3-sulphonatopropyl)-5,6-dichloro-3-ethyl-2-methyl-1H-benzimidazolium 1-Ethyl-2-methyl-3-(2'-acetoxy-3'-sulfopropyl)-5,6-dichlorobenzimidazolium hydroxide inner salt 1H-Benzimidazolium, 1-(2-(acetyloxy)-3-sulfopropyl)-5,6-dichloro-3-ethyl-2-methyl-, inner salt 68239-66-7 EINECS 269-459-4