Used as a key intermediate in the synthesis of pharmaceutical compounds, particularly in the development of kinase inhibitors for cancer treatment. Its aldehyde and bromo functional groups allow for selective cross-coupling and condensation reactions, enabling the construction of complex aromatic frameworks. Commonly employed in medicinal chemistry for structure-activity relationship (SAR) studies due to its ability to enhance binding affinity and metabolic stability in drug candidates. Also utilized in the preparation of sulfone-containing bioactive molecules with anti-inflammatory and antiproliferative properties.