2-(2-(9-Ethyl-9H-dibenzo(b,d)pyrrol-3-yl)ethenyl)-1,3,3-trimethyl-3H-indolium chloride 3-((1,3-Dihydro-1,3,3-trimethyl-2H-indol-2-ylidene)ethylidene)-9-ethyl-3H-carbazolium chloride 3H-Carbazolium, 3-((1,3-dihydro-1,3,3-trimethyl-2H-indol-2-ylidene)ethylidene)-9-ethyl-, chloride 72828-91-2 EINECS 276-895-9