Ortho-chlorobenzoic acid is an aromatic compound with the chemical formula C7H5ClO2. It consists of a benzene ring with a carboxylic acid group (-COOH) and a chlorine atom (Cl) attached to adjacent carbon atoms. This structure classifies it as a chlorobenzoic acid, specifically the ortho isomer, where the chlorine and carboxylic acid groups are positioned next to each other on the benzene ring. This compound is used in various applications, including the synthesis of pharmaceuticals and agrochemicals. It can also serve as an intermediate in the production of dyes and other organic compounds. Due to its chemical properties, ortho-chlorobenzoic acid is of interest in both industrial and research settings.