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Methyl 2-(2-chlorophenyl)acetate is a specialized organic compound belonging to the class of chlorinated phenylacetic acid esters. With the molecular formula C9H9ClO2 and a precise molecular weight of approximately 184.62 g/mol, this substance features a methyl ester group attached to an acetate backbone substituted with a chlorine atom at the ortho position of the phenyl ring. Its standard Chemical Abstracts Service (CAS) Registry Number is 3750-56-1, which serves as its unique identifier for chemical databases and regulatory compliance worldwide.
The primary application of Methyl 2-(2-chlorophenyl)acetate lies within the pharmaceutical and fine chemical industries, where it functions predominantly as a high-value intermediate in multi-step synthesis. Due to the presence of both the reactive ester moiety and the halogenated aromatic system, it serves as a versatile building block for constructing complex heterocyclic structures and biologically active molecules. Researchers frequently utilize this compound in the development of novel agrochemicals, including herbicides and fungicides, as well as in the synthesis of specific pharmaceutical agents targeting neurological or cardiovascular conditions. The ortho-chlorine substituent often imparts unique electronic and steric properties that are crucial for optimizing the binding affinity and metabolic stability of final drug candidates.
Beyond medicinal chemistry, this ester is occasionally employed in fragrance formulation research, although its use is less common compared to simpler aromatic esters due to its distinct chemical reactivity. In laboratory settings, it acts as a critical precursor for generating various derivatives through hydrolysis, reduction, or nucleophilic substitution reactions. The compound typically appears as a colorless to pale yellow liquid with a characteristic mild odor, though specific physical properties may vary slightly based on purity and storage conditions. Safety data indicates that like many halogenated organics, it requires careful handling to avoid skin contact and inhalation, necessitating appropriate personal protective equipment during manipulation. As demand for advanced synthetic intermediates grows, Methyl 2-(2-chlorophenyl)acetate remains an essential component in the supply chain for innovative chemical manufacturing processes across global markets.