Used primarily as an intermediate in organic synthesis, especially in the pharmaceutical industry. It participates in acylation reactions to introduce the 4-methylcyclohexanecarbonyl group into target molecules. Commonly employed in the preparation of esters, amides, and other derivatives that serve as building blocks for active pharmaceutical ingredients. Its reactivity as an acid chloride makes it valuable for forming carbon-carbon and carbon-heteroatom bonds under controlled conditions. Also utilized in research settings for developing novel compounds with potential biological activity.