Caproic acid, also known as hexanoic acid, is a carboxylic acid that belongs to the group of medium-chain fatty acids. It is known for its characteristic unpleasant odor found in sweat and goat cheese. It is widely used in the food industry for its flavoring and preserving properties. Some of the common synonyms for caproic acid include n-hexanoic acid, C6:0, and butylacetic acid. Caproate, hexanoate, and hexylcarboxylic acid are some of the esterified forms of caproic acid. Capric acid and lauric acid are other medium-chain fatty acids that share similar properties with caproic acid.