Used in organic synthesis, particularly in Suzuki-Miyaura cross-coupling reactions, to construct biaryl compounds. The boronic acid functional group enables the coupling, while the aldehyde at the 4-position and chloro substituent at the 2-position provide additional reactive sites for sequential transformations, such as further cross-couplings, nucleophilic substitutions, or reductions, enabling the synthesis of complex aromatic structures. Commonly applied in pharmaceutical and agrochemical research for building functionalized aromatic intermediates. The presence of multiple reactive sites offers versatility in multi-step synthesis and development of novel organic materials.