Used as an intermediate in organic synthesis, particularly in the preparation of pharmaceuticals and fine chemicals. Its aldehyde functionality allows for transformations such as reductions, oxidations, and condensation reactions, enabling the construction of more complex molecules. Commonly employed in the development of active pharmaceutical ingredients (APIs) where the benzyl-protected hydroxyl group can be deprotected and further modified. Also utilized in the synthesis of fragrances and functionalized aromatic compounds due to its stable aromatic backbone and reactive aldehyde group.