Methyl phenyl sulfone is widely used as a solvent in various chemical reactions, particularly in organic synthesis. It is effective in facilitating reactions that require polar aprotic conditions, such as nucleophilic substitutions and polymerizations. Additionally, it serves as a stabilizer and plasticizer in the production of polymers and resins, enhancing their durability and flexibility. In the pharmaceutical industry, it is utilized as an intermediate in the synthesis of active pharmaceutical ingredients (APIs). Its high thermal stability also makes it suitable for applications in high-temperature processes and industrial formulations.