Norethisterone enanthate

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Norethisterone enanthate
Norethindrone enanthate.svg
Systematic (IUPAC) name
[(9S,10R,13S,14S,17R)-17-ethynyl-13-methyl-3-oxo-1,2,6,7,8,9,10,11,12,14,15,16-dodecahydrocyclopenta[a]phenanthren-17-yl] heptanoate
Clinical data
Trade names Nur-Isterate (Ger, Swed, S.Afr)
AHFS/ International Drug Names
Legal status
Routes Intramuscular injection
CAS number 3836-23-5 YesY
ATC code ?
PubChem CID 229295
ChemSpider 199613 N
Chemical data
Formula C27H38O3 
Molecular mass 410.588 g/mol
 N (what is this?)  (verify)

Norethisterone enanthate (INN, BAN), also known as norethindrone enanthate (USAN), brand names including Norigest, Nur-Isterate, Norlutin enanthate and others, is a steroidal progestin with additional antigonadotropic (and hence antiandrogen and antiestrogen)[1] effects that is used as a hormonal contraceptive.[2][3] It is an enanthate ester of norethisterone.[4]


  1. ^ Garza-Flores J, Menjívar M, Cardenas M, Reynoso M, García GA, Pérez Palacios G (January 1991). "Further studies on the antigonadotropic mechanism of action of norethisterone". The Journal of Steroid Biochemistry and Molecular Biology 38 (1): 89–93. doi:10.1016/0960-0760(91)90406-U. PMID 1825472. 
  2. ^ F.. Macdonald (1997). Dictionary of Pharmacological Agents. CRC Press. p. 1450. ISBN 978-0-412-46630-4. Retrieved 12 May 2012. 
  3. ^ Index Nominum 2000: International Drug Directory. Taylor & Francis US. 2000. p. 750. ISBN 978-3-88763-075-1. Retrieved 30 May 2012. 
  4. ^ Norethisterone Acetate @