Bradykinin (1-3) is primarily used in research settings to study the role of bradykinin fragments in biological processes. It helps in understanding the mechanisms of inflammation, pain, and vascular permeability. Researchers utilize it to investigate how shorter bradykinin peptides influence receptor interactions and signaling pathways. This compound is also valuable in exploring potential therapeutic targets for conditions like hypertension, asthma, and chronic pain, as it provides insights into the modulation of the kallikrein-kinin system. Additionally, it aids in the development of inhibitors or modulators for bradykinin-related pathways.