Used as an intermediate in the synthesis of ascorbic acid (vitamin C) through chemical or enzymatic processes. It plays a key role in industrial vitamin C production due to its ability to be selectively deprotected and oxidized. Also utilized in organic synthesis for carbohydrate derivatization and in the preparation of chiral building blocks for pharmaceuticals. Its acetylated structure enhances stability and solubility in organic solvents, making it suitable for reactions requiring anhydrous conditions.