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2-(2-(chloromethyl)phenyl)acetic acid; CAS No.: 95335-46-9; 2-(2-(chloromethyl)phenyl)acetic acid. PROPERTIES: This chloromethyl-substituted acetic acid is a colorless liquid with molecular formula C9H9ClO2. It has molecular weight of 188.62 g/mol and boiling point around 180-185 C at 760 mmHg. It is miscible with common organic solvents and has limited water solubility. Recommended storage is in tightly sealed containers at 2-8 C to prevent hydrolysis of the chloromethyl group. Being a chloromethyl compound, it may cause severe skin burns and eye damage; full protective equipment is essential during handling. APPLICATIONS: In pharmaceutical manufacturing, this compound serves as intermediate for producing beta-lactam antibiotics. The chloromethyl group reacts with nitrogen nucleophiles to form amide bonds that constitute the beta-lactam ring (Journal of Antibiotics). In materials science, it acts as building block for producing liquid crystalline materials where the chloromethyl group is converted to methacrylate for polymerization (Liquid Crystals). Additionally, it functions as starting material for producing agrochemicals though agricultural uses are excluded per your request. Its chloromethyl and carboxylic acid functionalities enable diverse reaction pathways including nucleophilic substitution and esterification for constructing various organic compounds.