Butyl cyclopropanesulfonate is primarily used in organic synthesis as a versatile intermediate. It serves as a key building block in the preparation of various pharmaceuticals, agrochemicals, and specialty chemicals. Its cyclopropane ring structure imparts unique reactivity, making it valuable for constructing complex molecules. Additionally, it is employed in the development of sulfonate esters, which are useful in polymerization processes and as crosslinking agents in materials science. Its application extends to research settings, where it aids in studying reaction mechanisms and developing novel synthetic pathways.