1062-07-3 11H,13H-Oxireno(d)pyrano(4',3':3,3a)isobenzofuro(5,4-f)(2)benzopyran-4,6,13(2H,5aH)-trione, decahydro-2,2,4a,8a-tetramethyl-8-(tetrahydro-3-furyl)-, stereoisomer Decahydro-2,2,4a,8a-tetramethyl-8-(tetrahydro-3-furyl)-11H,13H-oxireno(d)pyrano(4',3':3,3a)isobenzofuro(5,4-f)(2)benzopyran-4,6,13(2H,5aH)-trione stereoisomer