This compound, N-[3-(2-Furyl)acryloyl]-Phe-Gly-Gly (FAPGG), is a chromogenic peptide substrate primarily used in biochemical research for spectrophotometric assays of enzyme activity, particularly proteases and peptidases such as angiotensin-converting enzyme (ACE). The furylacryloyl group allows monitoring of hydrolysis through changes in absorbance at 330 nm, aiding in the study of enzyme kinetics and mechanisms. It supports the development of enzyme inhibitors for therapeutic applications, including those targeting inflammation and cancer-related processes. Additionally, it is employed in peptide synthesis, as a model compound in structural studies to investigate peptide interactions and conformational dynamics, and in drug discovery to identify and optimize bioactive peptides.