1,3,3,1',3',3'-Hexamethylindodicarbocyanine iodide 149370-68-3 2-(5-(1,3-Dihydro-1,3,3-trimethyl-2H-indol-2-ylidene)penta-1,3-dienyl)-1,3,3-trimethyl-3H-indolium iodide 36536-22-8 3H-Indolium, 2-(5-(1,3-dihydro-1,3,3-trimethyl-2H-indol-2-ylidene)-1,3-pentadienyl)-1,3,3-trimethyl-, iodide 48221-03-0 EINECS 253-091-6 NSC 340302