5,6-Dichloro-2-(3-(5,6-dichloro-1,3-diethyl-1,3-dihydro-2H-benzimidazol-2-ylidene)prop-1-enyl)-1-ethyl-3-(2-(mesylamino)-2-oxoethyl)-1H-benzimidazolium ate 53132-00-6 EINECS 258-384-2