26305-86-2

(E)-2-Methyl-2-butenoic acid [(3aS)-2,3,3aα,4,4a,5,7aα,8,9,9aα-decahydro-9β-hydroxy-4aβ,8α-dimethyl-3-methylene-2,5-dioxoazuleno[6,5-b]furan-4α-yl] ester