ChEBI: A sesquiterpene lactone that is a (3aS,9bS)-3-methylidenedecahydroazuleno[4,5-b]furan-2(3H)-one heterotricyclic ring system with a hydroxymethyl, hydroxy, acetate, and methyl group substitue
ts at positions 6, 6a, 9, and 9a respectively.
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