pre-alpha-onocerin => (3S,22S)-2,3:22,23-diepoxysqualene
pre-alpha-onocerin => (3s,22s)-2,3:22,23-diepoxysqualene
pre-alpha-onocerin => (3S,22S)-2,3:22,23-diepoxysqualene
pre-alpha-onocerin => (3s,22s)-2,3:22,23-diepoxysqualene