(S)-2-Amino-2-(4-chlorophenyl)ethanol is a chiral amino alcohol derivative featuring a 4-chlorophenyl group and a primary amino group. It serves as a crucial chiral building block in pharmaceutical synthesis. This compound is primarily utilized as a key intermediate in the production of chiral active pharmaceutical ingredients (APIs). Its structure, containing both a chiral center and a functionalized aromatic ring, makes it valuable for constructing molecules with specific stereochemistry required for biological activity. It is notably employed in the synthesis of certain β-adrenergic receptor antagonists and other therapeutic agents where the (S)-configuration is essential for efficacy. As a bifunctional chiral synthon, it is also used in asymmetric synthesis and catalysis research. Handling requires standard precautions for amino alcohols, including protection from moisture and air.