Glutaric acid is a dicarboxylic acid with the chemical formula C5H8O4. It is a colorless, crystalline substance that is soluble in water and commonly used in the production of various chemicals, including plastics and pharmaceuticals. Glutaric acid can also be found in small amounts in certain foods and is a natural byproduct of metabolism in the human body. In addition to its industrial applications, glutaric acid is important in biochemistry. It plays a role in the Krebs cycle, a key metabolic pathway that generates energy in cells. Abnormal levels of glutaric acid can be associated with certain metabolic disorders, such as glutaric aciduria, which can affect health and development.