831222-16-3

2,2'-SPIRO-PYE 2,2'-Dipyrenyl-9,9-spirobifluorene 2,2'-Di(pyren-1-yl)-9,9'-spirobi[fluorene 2,2'-Di-1-pyrenyl-9,9'-spirobi[9H-fluorene] 9,9'-Spirobi[9H-fluorene], 2,2'-di-1-pyrenyl- 2,2'-Spiro-Pye , 2,2'-Di-pyrenyl-9,9-spiro-bifluorene