o-Toluic acid（Cat No.:R044683）, also known as 2-methylbenzoic acid, is an aromatic carboxylic acid featuring a methyl group at the ortho (2-) position relative to the carboxyl group on the benzene ring. It appears as a white crystalline solid with moderate solubility in water and good solubility in organic solvents. o-Toluic acid serves as an intermediate in the synthesis of dyes, pharmaceuticals, agrochemicals, and plasticizers. Its ortho-substitution pattern affects its reactivity in electrophilic aromatic substitution reactions and enables regioselective transformations. It is also used in laboratory studies involving aromatic carboxylic acid derivatives.