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Norethisterone acetate oxime

Norethisterone acetate oxime
Norethisterone acetate oxime.svg
Clinical data
SynonymsNorethindrone acetate oxime; ORF-5263; So-36; Norethisterone-3-oxime acetate; 17α-Ethynyl-19-nortestosterone 3-oxime 17β-acetate
Routes of
By mouth
Drug classProgestogen; Progestogen ester
CAS Number
PubChem CID
Chemical and physical data
Molar mass355.471 g/mol g·mol−1
3D model (JSmol)

Norethisterone acetate oxime (developmental code names ORF-5263, So-36), or norethindrone acetate oxime, is a steroidal progestin of the 19-nortestosterone group which was developed as a postcoital contraceptive but was never marketed.[1] It is the C3 oxime and C17β-acetate ester of norethisterone.[1]

See also


  1. ^ a b J. Elks (14 November 2014). The Dictionary of Drugs: Chemical Data: Chemical Data, Structures and Bibliographies. Springer. pp. 886–. ISBN 978-1-4757-2085-3.