IUPAC:(4S,4aS,5S,8aS,9aS)-4-ethoxy-8a,9a-dihydroxy-3,4a,5-trimethyl-2H,4H,4aH,5H,6H,7H,8H,8aH,9H,9aH-naphtho[2,3-b]furan-2-one
IUPAC:(4S,4aS,5S,8aS,9aS)-4-ethoxy-8a,9a-dihydroxy-3,4a,5-trimethyl-2H,4H,4aH,5H,6H,7H,8H,8aH,9H,9aH-naphtho[2,3-b]furan-2-one