9(S)-HETE is an enantiomer which makes up 50% of (±)9-HETE. There are no reports of 9(S)-HETE occurring as an enzymatic lipoxygenation product. While 12(S)-HETE promotes adhesion of several cell lines to endothelial cell monolayes, 9(S)-HETE and other positional HETEs are without effect.
