The molecule is a pyrrolizine alkaloid that is onetine in which the hydroxy hydrogen has been replaced by an acetyl group. It has a role as a Jacobaea metabolite. It is an enone, a macrocyclic lactone, an organic heterobicyclic compound, a pyrrolizine alkaloid, a tertiary amino compound, an acetate ester and a diol. It derives from a onetine.
[(1R,4S,6R,7R,11Z)-4-hydroxy-4-[(1R)-1-hydroxyethyl]-6,7,14-trimethyl-3,8,17-trioxo-2,9-dioxa-14-azabicyclo[9.5.1]heptadec-11-en-7-yl] acetate