Used as a key intermediate in the synthesis of pharmaceutical compounds, particularly in the development of indole-based bioactive molecules. Its reactive bromoethyl group allows for alkylation and coupling reactions, making it valuable in constructing complex heterocyclic systems. Commonly employed in medicinal chemistry for creating analogs with potential antimicrobial, anti-inflammatory, or anticancer activities. Also utilized in organic research to modify indole scaffolds for structure-activity relationship (SAR) studies.