9,9'-Spirobi[fluorene]-3,3',6,6'-tetrakis(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)

9,9'-Spirobi[fluorene]-3,3',6,6'-tetrakis(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl) · CAS 124558-60-7