Heptane is widely used as a non-polar solvent in laboratories and industrial applications, especially in liquid-liquid extractions where a non-polar medium is required. It is commonly employed in the analysis of volatile organic compounds and as a reference standard in determining octane ratings of gasoline, due to its zero octane rating when used in fuel testing. Heptane is also used as a carrier solvent in pesticide formulations and in the production of adhesives, sealants, and cleaning products. In organic synthesis, it serves as a reaction medium for processes requiring low polarity and moderate volatility. Additionally, it is used in the extraction of oils and fats in food processing and in the manufacturing of inks and coatings where a fast-evaporating solvent is needed.