Benzenesulfonyl hydrazide is primarily used as a blowing agent in the production of foamed plastics and rubber materials. It decomposes upon heating, releasing nitrogen gas, which creates a cellular structure in the polymer matrix, resulting in lightweight and insulating products. This chemical is particularly valued in industries such as construction, automotive, and packaging for manufacturing foam sheets, insulation panels, and molded parts. Additionally, it finds application in organic synthesis as a reagent for introducing hydrazine derivatives or as a reducing agent in specific chemical reactions. Its controlled decomposition properties make it a reliable choice for creating uniform and high-quality foam products.