Ortho-chlorophenyl acetic acid (2-chlorophenylacetic acid) is an organic chemical compound with the molecular formula \(C_{8}H_{7}ClO_{2}\) and a molar mass of \(170.59 \, g/mol\). It is widely used as a critical intermediate in the synthesis of pharmaceuticals (like the anti-inflammatory drug Diclofenac), agrochemicals, and plant growth regulators