Dihexa (also known as PNB 0408) is an experimental small molecule derived from angiotensin IV. It was engineered to cross the bloodbrain barrier and has shown synaptogenic effects in preclinical models. The often quoted Structural basis of the activation of c MET receptor Nature Communications Targeting HGF c MET signaling to regulate the tumor microenvironment: Implications for counteracting tumor immune evasion Cell Communication and Signaling Springer Nature Link Dihexa Research Peptide Protocols: Reconstitution & Storage