3H-Indolium,2-[7-(1,3-dihydro-1,3,3-trimethyl-2H-indol-2-ylidene)-1,3,5-heptatrienyl]-5-[[5-[(9-hydroxy-9H-thioxanthen-3-yl)amino]-1,5-dioxopentyl]amino]-1,3,3-trimethyl-, perchlorate (salt)
CAS No. 143452-08-8