Dihexa Bioss 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 Dihexa (PNB 0408) Angiotensin IV analogue CAS NO.:1401708 83 5 GlpBio Electrical Conductivity and Solubility of KF in N,N Dimethylformamide up to 125 C Journal of Chemical & Engineering Data 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 Dihexa 1401708 83 5