Synonyms Chlormadinol
CAS Number 20047-75-0
PubChem (CID) 20055454
ChemSpider 16736893
Chemical and physical data
Formula C21H29ClO3
Molar mass 364.90616 g/mol
3D model (Jmol) Interactive image

Clogestone (INN, BAN), also known as chlormadinol or as 3β,17α-dihydroxy-6-chloropregna-4,6-diene-20-one,[1] is a steroidal progestin that was synthesized in 1964 and was investigated as a progestin-only contraceptive but was never marketed.[2][3] A diacetate ester, clogestone acetate, also exists and similarly was never marketed.[2]

See also


  1. Gerald Litwack (2 December 2012). Biochemical Actions of Hormones. Elsevier. pp. 323–. ISBN 978-0-323-15189-4.
  2. 1 2 J. Elks (14 November 2014). The Dictionary of Drugs: Chemical Data: Chemical Data, Structures and Bibliographies. Springer. pp. 297–. ISBN 978-1-4757-2085-3.
  3. D F Hawkins; M G Elder (22 October 2013). Human Fertility Control: Theory and Practice. Elsevier Science. pp. 3–. ISBN 978-1-4831-6361-1.

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