1,2,3-Trimethylcyclohexane is primarily utilized in organic synthesis and research applications. It serves as a model compound in studies focusing on the behavior of cyclohexane derivatives, particularly in understanding steric effects and conformational analysis. This chemical is also employed in the development of lubricants and fuel additives due to its stability and structural properties. Additionally, it finds use in the formulation of specialty solvents and as an intermediate in the production of more complex organic molecules. Its role in industrial processes highlights its importance in advancing material science and chemical engineering.