2-Iodo-3-methylbenzoic acid is an organic compound featuring both a carboxylic acid group and an iodine atom on a methyl-substituted benzene ring. This structure makes it a versatile bifunctional building block in synthetic chemistry. Its primary application is as a key intermediate in organic synthesis, particularly in cross-coupling reactions like the Suzuki-Miyaura coupling. The iodine atom serves as an excellent leaving group for palladium-catalyzed reactions, allowing for the introduction of various aryl or alkyl groups at the ortho position relative to the carboxylic acid. The carboxylic acid group can be further derivatized into esters, amides, or reduced, enabling the construction of complex molecular architectures. This compound is commonly used in pharmaceutical and agrochemical research for the synthesis of target molecules. It is typically handled as a solid and requires standard precautions for handling halogenated aromatic compounds.