Adipic acid has the chemical formula C6H10O4 and is a white crystalline solid It is a synthetic dicarboxylic acid especially used in the preparation of nylon polyurethane and other synthetic fibers Adipic acid is one of the most important intermediates in the petrochemical industry and is involved in the production of many products in our everyday life including clothing automotive parts plastic packaging and more It is also extensively used in the food industry especially as a flavoring agent and in the manufacture of beverages Adipic acid is not toxic and is allowed to be used in foods according to the regulations of various countries