Used as a catalyst precursor in olefin polymerization, particularly effective in producing polyethylene and polypropylene with controlled molecular weights and narrow polydispersity. Its hafnocene structure offers higher activity and selectivity compared to some zirconocene analogs when activated with methylaluminoxane (MAO) or other co-catalysts. Commonly applied in academic and industrial research for developing new metallocene catalysts in stereospecific polymerizations. Also explored in copolymer synthesis involving alpha-olefins and styrene derivatives due to its ability to influence polymer microstructure.