furan,dihydro,methylene
Furan
82345-32-2(1R,3bR,5aR,6aS,7aS,8R,10R,11aS,12aS,13aS,13bS,15R,15aS)-3a,7a,15-trihydroxy-8-methoxy-10,13a,15a-trimethyl-1-(5-oxo-2,5-dihydrofuran-3-yl)icosahydro-8H,14H-cyclopenta[7,8]phenanthro[2,3-b]pyrano[2,3-e][1,4]dioxin-14-one
656820-13-23(2H)-Furanone,5-[(4Z)-1,1,2,2,3,3-hexafluoro-6-hydroxy-5-iodo-6-methyl-4-heptenyl]-2,2-dimethyl-