4.
Name: (1H-Cyclopenta(1,2-c:3,4-c)difuran-1,3,4,6(3aH)-tetrone,) tetrahydro-, (3aalpha,3balpha,6aalpha,7aalpha)-
CAS: 4802-47-5



5.
Name: (3R,5R,8S,9S,10S,13R,14S,17S)-3-hydroxy-17-(1-hydroxyethyl)-10,13-dimethyl-1,2,3,4,5,6,7,8,9,12,14,15,16,17-tetradecahydrocyclopenta[a]phenanthren-11-one
CAS: 6815-48-1



