The molecule is a sesquiterpene alkaloid that has been isolated from Tripterygium wilfordii and exhibits immunosuppressive and insecticidal properties. It was found to be identical with euonine, previously isolated from Euonymous sieboldiana. It has a role as a plant metabolite, an immunosuppressive agent and an insecticide. It is an acetate ester, a dihydroagarofuran sesquiterpenoid, a macrolide, a pyridine alkaloid and a sesquiterpene alkaloid.
[(1S,3R,15S,18S,19R,20R,21R,22S,23R,24R,25R,26S)-19,20,22,23,25-pentaacetyloxy-26-hydroxy-3,15,26-trimethyl-6,16-dioxo-2,5,17-trioxa-11-azapentacyclo[16.7.1.01,21.03,24.07,12]hexacosa-7(12),8,10-trien-21-yl]methyl acetate