1-Ethyl-2-(3-(1-ethyl-4(1H)-quinolylidene)prop-1-enyl)quinolinium iodide 20591-23-5 90597-82-3 EINECS 243-897-6 Quinolinium, 1-ethyl-2-(3-(1-ethyl-4(1H)-quinolinylidene)-1-propenyl)-, iodide