Figure 1. HPLC profile standard dolichol extracted from the human liver. Profile was obtained by monitering the elute at 210 nm. The molecular species distribution of standard dolichols show dolichols ranging from Dol-17 to Dol-22.  The numbers in the chromatogram identify the six major well defined peaks that are of individual dolichol species corresponding to Dol-17, Dol-18, Dol-19, Dol-20, Dol-21, and Dol-22.