2,2'-(9,9-dioctyl-9H-fluorene-2,7-diyl)bis(4,4,5,5-tetramethyl-1,3,2-dioxaborolane); CAS No.: 196207-58-6; 2,2'-(9,9-dioctyl-9H-fluorene-2,7-diyl)bis(4,4,5,5-tetramethyl-1,3,2-dioxaborolane) is a white solid. Store under nitrogen at -20 C. This compound is light-sensitive; CAS No.: 196207-58-6 requires inert handling.