Pimelic acid, also known as heptanedioic acid, is a 7-carbon organic compound with the molecular formula C7H12O4. It belongs to the family of dicarboxylic acids and is commonly found in the biosynthesis of lysine, a crucial amino acid. Synonyms for pimelic acid include adipic acid, azeleic acid, and n-octanedioic acid. These terms are often used interchangeably to describe this compound's chemical structure and properties. Pimelic acid and its synonyms have various applications in the manufacturing of nylon, polyester, polyurethane, and other polymers. Additionally, they play a role in the production of pharmaceuticals, food additives, and cosmetics.