Diallyl tetrasulfide is a specialty organosulfur chemical primarily used in the agricultural sector as a soil fumigant and pesticide to control nematodes, fungi, and other soil-borne pathogens, thereby improving crop yield and soil health. It also serves as a sulfur donor in the vulcanization of rubber, enhancing the durability and elasticity of rubber products in the manufacturing industry. Additionally, it is employed in the synthesis of various organic sulfur compounds for industrial applications. In the lubricant sector, it acts as an additive to reduce wear and prevent corrosion. In food preservation, it functions as an antimicrobial agent against molds and bacteria to extend shelf life. Emerging research highlights its potential in pharmaceuticals due to antioxidant and anti-cancer properties.