1,2,4-Trimethylbenzene is applied as a liquid scintillator. It is also used as a sterilizing agent and in the manufacture of dyes, perfumes, and resins. It is used as a safe solvent for the production of H₂O₂ (hydrogen peroxide). Pseudocumene is used mainly as raw material for the production of trimellitic anhydride, pyromellitic dianhydride.

This Thermo Scientific Chemicals brand product was originally part of the Alfa Aesar product portfolio. Some documentation and label information may refer to the legacy brand. The original Alfa Aesar product / item code or SKU reference has not changed as a part of the brand transition to Thermo Scientific Chemicals.