This chemical is primarily used in organic synthesis, particularly in cross-coupling reactions such as the Stille reaction. It serves as a versatile building block for creating complex pyrimidine derivatives, which are valuable in pharmaceutical and agrochemical research. The tributylstannyl group facilitates the introduction of the pyrimidine moiety into various organic frameworks, enabling the development of compounds with potential biological activity. Additionally, it is employed in the synthesis of nucleoside analogs, which are crucial in antiviral and anticancer drug development. Its application extends to materials science, where it aids in the design of organic electronic materials and coordination polymers.