Used as a chiral building block in organic synthesis, particularly in the preparation of pharmaceuticals and fine chemicals. Its alkyne functionality allows for coupling reactions, such as Sonogashira or Click chemistry, enabling the construction of complex molecular architectures. The hydroxyl group can be modified through esterification, etherification, or oxidation, making it versatile for introducing structural diversity. Commonly employed in asymmetric synthesis due to its stereochemical purity, it helps in developing enantiomerically enriched compounds, including bioactive molecules and natural product analogs.