Clinical data
Trade names Fenocyclin, Surestrine, Surestryl
Synonyms Diosynestrol; Fenocycline; Fenocyclin; Phenocyclin; RS-2874; Dehydrofolliculinic acid; cis-Bisdehydrodoisynolic acid 7-methyl ether; BDDA ME;
Routes of
By mouth
Drug class Nonsteroidal estrogen
CAS Number
PubChem CID
Chemical and physical data
Formula C19H22O3
Molar mass 298.38 g·mol−1
3D model (JSmol)

Doisynoestrol (brand names Fenocyclin, Surestrine, Surestryl; former developmental code name RS-2874), also known as fenocycline, as well as cis-bisdehydrodoisynolic acid 7-methyl ether (BDDA ME), is a synthetic nonsteroidal estrogen of the doisynolic acid group that is no longer marketed.[1][2] It is a methyl ether of bisdehydrodoisynolic acid.[1] Doisynoestrol was described in the literature in 1945.[1]

See also


  1. 1 2 3 J. Elks (14 November 2014). The Dictionary of Drugs: Chemical Data: Chemical Data, Structures and Bibliographies. Springer. pp. 465–. ISBN 978-1-4757-2085-3.
  2. Herbai, G. (1971). "SEPARATION OF GROWTH INHIBITING POTENCY FROM OESTROGENICITY IN DIFFERENT WEAK OESTROGENIC DRUGS OF VARIOUS CHEMICAL STRUCTURES". European Journal of Endocrinology. 68 (2): 249–263. doi:10.1530/acta.0.0680249. ISSN 0804-4643.

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