IUPAC:6-(diethylamino)-4-[(2,3,10,11-tetrahydro-1H-5-oxatetraphen-4-yl)methylidene]-1,2,3,4-tetrahydro-10lambda4-xanthen-10-ylium perchlorate
IUPAC:6-(diethylamino)-4-[(2,3,10,11-tetrahydro-1H-5-oxatetraphen-4-yl)methylidene]-1,2,3,4-tetrahydro-10lambda4-xanthen-10-ylium perchlorate