2-(1,3-Dioxolan-2-yl)ethan-1-ol is a protected form of 3-hydroxypropanal, where the aldehyde group is safeguarded by a 1,3-dioxolane ring. It serves as a versatile intermediate in organic synthesis, particularly in the pharmaceutical industry for constructing complex molecules. The free hydroxyl group allows for selective functionalization while the protected carbonyl prevents side reactions. It is also utilized in the preparation of polymers, adhesives, and coatings, contributing to enhanced material properties. As a niche building block, it is valuable in the development of specialty chemicals.