IUPAC:(3bR,9bS)-3a,7-dihydroxy-11a-methyl-1-(5-oxo-2,5-dihydrofuran-3-yl)-1H,2H,3H,3aH,3bH,4H,5H,7H,8H,9H,9aH,9bH,10H,11H,11aH-cyclopenta[a]phenanthrene-9a-carbaldehyde
IUPAC:(3bR,9bS)-3a,7-dihydroxy-11a-methyl-1-(5-oxo-2,5-dihydrofuran-3-yl)-1H,2H,3H,3aH,3bH,4H,5H,7H,8H,9H,9aH,9bH,10H,11H,11aH-cyclopenta[a]phenanthrene-9a-carbaldehyde