Used primarily as an intermediate in organic synthesis, especially in the production of pharmaceuticals and agrochemicals. It serves as a building block for the preparation of various active ingredients due to its aldehyde functional group, which readily undergoes condensation and reduction reactions. Commonly employed in the synthesis of ibuprofen and related nonsteroidal anti-inflammatory drugs (NSAIDs), it enables efficient construction of the core aromatic-propane structure. Also utilized in fragrance formulations for its mild, pleasant aromatic characteristics, and in the development of specialty chemicals requiring a branched aldehyde with aromatic substitution.