Bradykinin Fragment 1-8 acetate salt hydrate is primarily used in biochemical research to study the role of bradykinin and its fragments in various physiological processes. It serves as a valuable tool for investigating the mechanisms of inflammation, pain, and vascular regulation. Researchers utilize this peptide to explore its interactions with bradykinin receptors, which are involved in mediating responses such as vasodilation and increased vascular permeability. Additionally, it is employed in the development of assays to screen for potential therapeutic agents targeting bradykinin-related pathways, particularly in conditions like hypertension, chronic pain, and inflammatory diseases. Its use also extends to studying the degradation and metabolism of bradykinin peptides in biological systems.