Used as a key intermediate in the synthesis of pharmaceuticals, particularly in the development of antipsychotic and antihypertensive drugs. It serves as a building block for heterocyclic compounds due to the presence of both amino and ester functional groups, enabling coupling reactions and ring formation. Commonly employed in the preparation of thiophene-based bioactive molecules, including kinase inhibitors and receptor antagonists. Its chloro and amino substituents allow for selective modifications, making it valuable in medicinal chemistry for structure-activity relationship studies. Also utilized in agrochemical research for designing new pesticides with improved efficacy and selectivity.