(8S,9S,10R,14S)-13-Ethyl-11-methylene-7,8,9,10,11,12,13,14,15,16-decahydro-1H-cyclopenta[a]phenanthrene-3,17(2H,6H)-dione

Suppliers

Names

[ CAS No. ]:
54024-17-8

[ Name ]:
(8S,9S,10R,14S)-13-Ethyl-11-methylene-7,8,9,10,11,12,13,14,15,16-decahydro-1H-cyclopenta[a]phenanthrene-3,17(2H,6H)-dione

[Synonym ]:
(8S,9S,10R,14S)-13-ethyl-11-methylidene-2,6,7,8,9,10,12,14,15,16-decahydro-1H-cyclopenta[a]phenanthrene-3,17-dione
(8S,9S,10R,14S)-13-Ethyl-11-methylene-7,8,9,10,11,12,13,14,15,16-decahydro-1H-cyclopenta[a]phenanthrene-3,17(2H,6H)-dione

Chemical & Physical Properties

[ Density]:
1.1±0.1 g/cm3

[ Boiling Point ]:
460.9±45.0 °C at 760 mmHg

[ Molecular Formula ]:
C20H26O2

[ Molecular Weight ]:
298.419

[ Flash Point ]:
171.5±25.7 °C

[ Exact Mass ]:
298.193268

[ PSA ]:
34.14000

[ LogP ]:
3.28

[ Vapour Pressure ]:
0.0±1.1 mmHg at 25°C

[ Index of Refraction ]:
1.555

Synthetic Route

Precursor & DownStream

Precursor

  • (8S,9S,10R,14S)-13-ethyl-17-hydroxy-11-methylidene-1,2,6,7,8,9,10,12,14,15,16,17-dodecahydrocyclopenta[a]phenanthren-3-one
  • 13-ethyl-11-methylenegon-5-ene-3,17-dione cyclic bis(1,2-ethanediyl acetal)
  • 11A-HYDROXY-18-METHYLESTR-4-ENE-3,17-DIONE
  • GON-4-ENE-3,11,17-TRIONE,13-ETHYL
  • D-17β-benzyloxy-13β-ethyl-3-methoxygona-1,3,5(10)-trien-11α-ol
  • D-17β-benzyloxy-13β-ethyl-3-methoxy-1,3,5(10),9(11)-gonatetraene

DownStream

  • Desogestrel
  • 13-ethyl-11-methylenegon-4-en-17-one