Heptanoic acid is a fatty acid with seven carbon atoms. It is also known by several other names, including enanthic acid, n-heptanoic acid, and C7 fatty acid. These synonyms are often used interchangeably in scientific literature but may appear more commonly in certain fields or regions. Heptanoic acid is used in the production of esters, which have a variety of applications in the food, fragrance, and pharmaceutical industries. It is also found in some natural sources, such as milk and coconut oil. Understanding the various synonyms for heptanoic acid can be helpful for researchers and professionals working with this important fatty acid.