Carda-4,20(22)-dienolide,11,14-dihydroxy-12-oxo-2,3-[(tetrahydro-3,4-dihydroxy-6-methyl-2H-pyran-3,2-diyl)bis(oxy)]-,[2a(2S,3S,4R,6R),3b,11a]- [ 145854-16-6 ]