2,3,7,8,12,13,17,18-Octaethyl-21H,23H-porphine vanadium(IV) oxide is a porphyrin ring bound to vanadium oxide used for research in materials science, chemical synthesis, catalysis, printed electronics and photonics. It is the starting material in the preparation of the π-cation radical derivative [VO(OH)2(OEP)]SbCl6.