Clinical data
Trade names Nor-Progestelea
ATC code None
Synonyms Neoprogestin, vinylnortestosterone, SC-4641
CAS Number 6795-60-4
PubChem (CID) 65588
ChemSpider 59030
Chemical and physical data
Formula C20H28O2
Molar mass 300.435 g/mol
3D model (Jmol) Interactive image
Melting point 169 to 171 °C (336 to 340 °F) [1]

Norvinisterone (INN) (marketed as Neoprogestin and Nor-Progestelea by Syntex; former developmental code name SC-4641), also known as 17α-vinyl-19-nortestosterone (or vinylnortestosterone), is a steroidal progestin and androgenic-anabolic steroid (AAS) of the 19-nortestosterone group that is or has been used in Europe.[1][2][3][4][5] It was synthesized in 1953,[2] and was studied in humans by 1960.[6] It appears to be quite androgenic, with about one-third and one-fifth of the androgenic and anabolic activity, respectively, of nandrolone (19-nortestosterone) in animal bioassays.[7]

See also


  1. 1 2 Merck Index, 11th edition, 6637
  2. 1 2 J. Elks (14 November 2014). The Dictionary of Drugs: Chemical Data: Chemical Data, Structures and Bibliographies. Springer. pp. 889–. ISBN 978-1-4757-2085-3.
  3. Pei-Show Juo (21 December 2001). Concise Dictionary of Biomedicine and Molecular Biology. CRC Press. pp. 774–. ISBN 978-1-4200-4130-9.
  4. P. H. List; L. Hörhammer (12 March 2013). Chemikalien und Drogen Teil A: N-Q. Springer Berlin Heidelberg. pp. 274–. ISBN 978-3-642-65035-2.
  5. Meyerson, Bengt J. (1967). "Relationship Between the Anesthetic and Gestagenic Action and Estrous Behavior-Inducing Activity of Different Progestins". Endocrinology. 81 (2): 369–374. doi:10.1210/endo-81-2-369. ISSN 0013-7227.
  6. MARTINEZ MONTES EA, BAGNATI EP, ZAPATA AC, BUR GE (1960). "[Clinical trial of a new luteoid: norvinisterone]". Dia Med (in Spanish; Castilian). 32: 194–7. PMID 14421807.
  7. Saunders, Francis J.; Drill, Victor A. (1956). "THE MYOTROPHIC AND ANDROGENIC EFFECTS OF 17-ETHYL-19-NORTESTOSTERONE AND RELATED COMPOUNDS". Endocrinology. 58 (5): 567–572. doi:10.1210/endo-58-5-567. ISSN 0013-7227.

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