Furan-2-carboxylic acid is an organic compound that features a furan ring, which is a five-membered aromatic ring containing oxygen. The "2-carboxylic acid" part indicates that a carboxylic acid group (-COOH) is attached to the second carbon of the furan ring. This compound is known for its potential applications in the synthesis of various pharmaceuticals and agrochemicals. The chemical formula for furan-2-carboxylic acid is C5H4O3, and it has a molecular weight of approximately 128.09 g/mol. It is a colorless to pale yellow solid that is soluble in water and organic solvents. Its unique structure allows it to participate in various chemical reactions, making it a valuable intermediate in organic synthesis.