Monosodium 2-Sulfoterephthalate is primarily used in the production of specialty polymers and resins. It acts as a key intermediate in the synthesis of liquid crystal polymers (LCPs), which are widely employed in high-performance applications such as electronics, automotive components, and industrial machinery due to their excellent thermal stability and mechanical strength. Additionally, this compound is utilized in the manufacturing of dyes and pigments, where it serves as a building block for creating colorants with enhanced stability and brightness. Its sulfonate group also makes it useful in water treatment processes, where it can function as a dispersant or chelating agent to manage scale and corrosion in industrial water systems.