Sodium 2-chloroethanesulfonate monohydrate is primarily used in the synthesis of various organic compounds, particularly in the preparation of surfactants and detergents. Its sulfonate group makes it valuable for creating water-soluble products, which are essential in cleaning formulations. Additionally, it serves as an intermediate in the production of pharmaceuticals and agrochemicals, where its reactive chloro group facilitates further chemical modifications. The compound is also utilized in research and development for studying sulfonation reactions and developing new materials with specific properties. Its application extends to industrial processes where sulfonate derivatives are required for enhancing the performance of products like lubricants and corrosion inhibitors.