Used as a key intermediate in the synthesis of pharmaceuticals, particularly in the production of selective adrenergic receptor agonists and antagonists. It plays a role in developing drugs for cardiovascular conditions and central nervous system disorders due to its ability to modify receptor binding properties. Its chlorinated phenolic structure with an aminomethyl group allows for versatile functionalization in medicinal chemistry, making it valuable in creating biologically active molecules. Also employed in the preparation of fluorescent probes and labeling agents for biochemical research.