1-Ethyl-2-(5-(1-ethyl-2(1H)-quinolylidene)penta-1,3-dienyl)quinolinium iodide 14187-31-6 EINECS 238-040-8 Quinolinium, 1-ethyl-2-(5-(1-ethyl-2(1H)-quinolinylidene)-1,3-pentadienyl)-, iodide