This chemical is primarily used in organic synthesis as a reagent for the Wittig reaction, which is a key method for forming carbon-carbon double bonds. It is particularly effective in the synthesis of alkenes from aldehydes and ketones, offering high selectivity and yield. Additionally, it finds application in the preparation of complex organic molecules, including pharmaceuticals and natural products, where precise control over double bond formation is crucial. Its stability and reactivity make it a valuable tool in the development of fine chemicals and advanced materials.