Used as a key intermediate in the synthesis of organic compounds, particularly in the preparation of phosphonates and phosphonic acids. It plays a significant role in the production of flame retardants, where its phosphorus content enhances fire resistance in materials like plastics and textiles. Additionally, it is utilized in the development of agrochemicals, including pesticides and herbicides, due to its ability to modify the biological activity of these compounds. In the pharmaceutical industry, it serves as a building block for creating active pharmaceutical ingredients (APIs) with potential therapeutic applications. Its versatility also extends to the field of organic synthesis, where it is employed in the formation of carbon-phosphorus bonds, enabling the creation of complex molecules for various industrial and research purposes.