Back to the overview of different vitamins When you can not open the PDB files you probably have not the free plug-in Chime. You can download Chime, after registration, free of charge by clicking here. Vitamine E Chemische naam: D-alfa-Tocoferol (engels: Alpha-Tocopherol) Molecuul formule: C29H50O2 Traditionele structuurformule. 3D-ball & stick structuurformule. De PDB file getoont met Chime.