This compound is primarily utilized in organic synthesis as a reagent for the Wittig reaction, which is a key method for forming alkenes from aldehydes or ketones. It acts as a source of the ylide intermediate, enabling the conversion of carbonyl compounds into alkenes with high selectivity and efficiency. This makes it valuable in the synthesis of complex organic molecules, including pharmaceuticals, natural products, and fine chemicals. Additionally, its use in the preparation of conjugated polyenes and other unsaturated compounds is significant in materials science and polymer chemistry. The compound’s ability to facilitate carbon-carbon bond formation under mild conditions makes it a versatile tool in synthetic organic chemistry.