This chemical is primarily used in organic synthesis as a reagent for the preparation of ylides, which are intermediates in the Wittig reaction. The Wittig reaction is a widely employed method for the formation of alkenes from aldehydes or ketones, making this compound valuable in the synthesis of complex organic molecules, including pharmaceuticals, agrochemicals, and natural products. Its ability to facilitate the formation of carbon-carbon double bonds with high selectivity and efficiency makes it a key tool in synthetic chemistry. Additionally, it can be utilized in the modification of polymers and materials to introduce specific functional groups, enhancing their properties for industrial applications.