23315-33-5 2H-Furo(3',2':4,5)furo(2,3-h)-1-benzopyran-2-one, 7a,10a-dihydro-4-(2-hydroxyethyl)-5-methoxy- 7a,10a-Dihydro-4-(2-hydroxyethyl)-5-methoxy-2H-furo(3',2':4,5)furo(2,3-h)-1-benzopyran-2-one Parasiticol