19764-96-6 2-(7-(1,3-Dihydro-1,3,3-trimethyl-2H-indol-2-ylidene)hepta-1,3,5-trienyl)-1,3,3-trimethyl-3H-indolium iodide 3H-Indolium, 2-(7-(1,3-dihydro-1,3,3-trimethyl-2H-indol-2-ylidene)-1,3,5-heptatrienyl)-1,3,3-trimethyl-, iodide 59873-60-8 85537-49-1 EINECS 243-282-2