Synonyms: 3H-Indolium,1,3,3-trimethyl-2-[7-(1,3,3-trimethyl-2-indolinylidene)-1,3,5-heptatrienyl]-,iodide (8CI);3H-Indolium,2-[7-(1,3-dihydro-1,3,3-trimethyl-2H-indol-2-ylidene)-1,3,5-heptatrienyl]-1,3,3-trimethyl-,iodide (9CI);1,1',3,3,3',3'-Hexamethyl-2,2'-indotricarbocyanine iodide;1,1',3,3,3',3'-Hexamethylindoletricarbocyanine iodide;1,1',3,3,3',3'-Hexamethylindotricarbocyanine iodide;1,3,3,1',3',3'-Hexamethyl-2,2'-indotricarbocyanine iodide;1,3,3,1',3',3'-Hexamethylindoletricarbocyanine iodide;2-[7-(1,3,3-Trimethylindoline-2-ylidene)-1,3,5-heptatrienyl]-1,3,3-trimethyl-3H-indoliumiodide;HITC;HITCI;Hexacyanin 3;Hexacyanine 3;LC 8500;NK 125;