13(R)-HODEcholesterylester was originally extracted from atherosclerotic lesions. It remains uncertain whether the oxidized fatty acid portion of the molecule results from enzymatic lipoxygenation or from random lipid peroxidation. 13(R)-HODEcholesterylester can be used as a standard for analysis of chiral HODEcholesterylesters.
(±)13-HODEcholesterylester was originally extracted from atherosclerotic lesions and shown to be produced by Cu2+-catalyzed oxidation of LDL. Later studies determined that 15-LO from rabbit reticulocytes and human monocytes were able to metabolize cholesteryl linoleate, a major component of LDL, to 13-HODEcholesterylester.