Phytol is a key acyclic diterpene alcohol that is a precursor for vitamins E and K1. Phytol is an extremely common terpenoid, found in all plants esterified to Chlorophyll to confer lipid solubility[citation needed].; Phytol is a natural linear diterpene alcohol which is used in the preparation of vitamins E and K1. It is also a decomposition product of chlorophyll. It is an oily liquid that is nearly insoluble in water, but soluble in most organic solvents. -- Wikipedia