Used as an intermediate in the synthesis of pharmaceuticals, particularly in the production of diuretic drugs such as thiazide diuretics. It plays a key role in forming the core structure of these medications, which are commonly prescribed for hypertension and edema. The compound's sulfonamide group and chlorinated aromatic ring make it valuable in building bioactive molecules with specific solubility and binding properties. It is also utilized in agrochemical synthesis for developing certain herbicides and plant growth regulators.