Maleic Acid is a colorless, odorless organic compound with the chemical formula C4H4O4. It is a dicarboxylic acid, meaning it contains two carboxyl functional groups. Maleic acid is primarily used in the production of various chemicals, including resins, plastics, and agricultural products. This compound can be found in nature, particularly in certain plants, but it is mostly synthesized in laboratories. Maleic acid is known for its ability to undergo various chemical reactions, making it valuable in the manufacturing of fumaric acid and other derivatives used in food and pharmaceuticals.