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 30ML LIQUID (20MG ML, 600MG BOTTLE) UMBRELLA Labs Equilibrium solubility, solvation and dissolution thermodynamics, and DFT study of 18 glycyrrhetinic acid in solutions of 1,4 dioxane N,N dimethylformamide ethanol isopropanol + water ScienceDirect 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