Isooctane is widely used as a reference standard in the petroleum industry to determine the octane rating of fuels. It is assigned an octane rating of 100, serving as a benchmark for measuring the anti-knock properties of gasoline. This helps in assessing the performance and efficiency of engines, ensuring smoother combustion and reduced engine knocking. Additionally, it is utilized as a solvent in various industrial applications, particularly in the production of adhesives, coatings, and specialty chemicals. Its high stability and low reactivity make it suitable for laboratory experiments and calibration processes in analytical chemistry.