Synonyms: (Z)-2-Methyl-2-butenoic acid [(3R)-2,7-dioxo-3α,6,9-trimethyl-2,3,3aβ,4,5,7,9aα,9bβ-octahydroazuleno[4,5-b]furan]-4β-yl ester;[(3R)-2,3,3aβ,4,5,7,9aα,9bβ-Octahydro-3α,6,9-trimethyl-2,7-dioxoazuleno[4,5-b]furan-4β-yl](Z)-2-methyl-2-butenoate;Badkhysin