102279-15-2 1H-Benz(e)indolium, 2-(7-(1,3-dihydro-1,1,3-trimethyl-2H-benz(e)indol-2-ylidene)-1,3,5-heptatrienyl)-1,1,3-trimethyl-, perchlorate 2-(7-(1,3-Dihydro-1,1,3-trimethyl-2H-benz(e)indol-2-ylidene)hepta-1,3,5-trienyl)-1,1,3-trimethyl-1H-benz(e)indolium perchlorate 23178-67-8 91372-10-0 EINECS 245-474-1