Synonyms: NSC339137;PHYSALOLACTONE;AC1NUQRW;71339-25-8;(2R)-2-[(1S)-1-[(4S,5R,6S,8R,9S,10R,13S,14R,17S)-6-chloro-4,5,14,17-tetrahydroxy-10,13-dimethyl-1-oxo-6,7,8,9,11,12,15,16-octahydro-4H-cyclopenta[a]phenanthren-17-yl]-1-hydroxyethyl]-4,5-dimethyl-2,3-dihydropyran-6-one