Vesugen is a synthetic tripeptide (Lys-Glu-Asp, KED) from the Khavinson short-peptide series, associated with vascular tissue in the source literature. The originating patent describes it as obtained by solution-phase peptide synthesis and characterizes it as a white amorphous odourless powder. It has the molecular formula C₁₅H₂₆N₄O₈, a molecular weight of approximately 390.39 g/mol. Its sequence is Lys-Glu-Asp (KED). In cultured vascular endothelial cells KED is reported to modulate expression of the proliferation-associated MKI67 gene; the promoter interaction is proposed on the basis of molecular docking rather than experimental structural evidence. Supplied as a white to off-white lyophilized powder, stored refrigerated at 2–8 °C. This product is strictly for research purposes only.