Date published: 2026-4-28

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Gestrinone (CAS 16320-04-0)

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Alternate Names:
13-ethyl-17α-hydroxy-18,19-dinorpregna-4,9,11-trien-20-yn-3-one
Application:
Gestrinone is a synthetic steroid that acts centrally on the hypothalamic-pituitary system
CAS Number:
16320-04-0
Purity:
≥99%
Molecular Weight:
308.4
Molecular Formula:
C21H24O2
Supplemental Information:
This is classified as a Dangerous Good for transport and may be subject to additional shipping charges.
For Research Use Only. Not Intended for Diagnostic or Therapeutic Use.
* Refer to Certificate of Analysis for lot specific data.

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Gestrinone is a steroid with a functional role as a progestogen. It acts as a selective progesterone receptor modulator, binding to and activating the progesterone receptor. This interaction inhibits the secretion of gonadotropins, leading to the suppression of ovulation.Gestrinone has anti-estrogenic effects, reducing the proliferation of the endometrium. At the molecular level, gestrinone interferes with the normal hormonal regulation of the menstrual cycle, disrupting the feedback mechanisms that control the release of reproductive hormones. This disruption ultimately prevents the maturation of ovarian follicles and the release of eggs, contributing to its functional role in experimental applications.


Gestrinone (CAS 16320-04-0) References

  1. Determination and excretion study of gestrinone in human urine by high performance liquid chromatography and gas chromatography/mass spectrometry.  |  Kim, Y., et al. 2000. Rapid Commun Mass Spectrom. 14: 1293-300. PMID: 10918383
  2. Effects of gestrinone on uterine leiomyoma and expression of c-Src in a guinea pig model.  |  Zhu, Y., et al. 2007. Acta Pharmacol Sin. 28: 685-94. PMID: 17439725
  3. Rationale for frequency and dose of administration in gestrinone therapy for pelvic endometriosis in the experimental model of rabbit uterus.  |  Tamaya, T., et al. 1991. Gen Pharmacol. 22: 505-10. PMID: 1869024
  4. Does gestrinone antagonize the effects of estrogen on endometrial implants upon the peritoneum of rats?  |  Lobo, VL., et al. 2008. Clinics (Sao Paulo). 63: 525-30. PMID: 18719766
  5. Antiestrogenic effect of gestrinone as an inhibitor of [3H]-estradiol binding to nuclear type II sites.  |  Ohno, Y., et al. 1991. Gynecol Obstet Invest. 31: 97-101. PMID: 2037266
  6. Enzyme-linked immunosorbent assays for the synthetic steroid gestrinone.  |  Brun, EM., et al. 2010. Talanta. 82: 1581-7. PMID: 20801376
  7. Gestrinone inhibits growth of human uterine leiomyoma may relate to activity regulation of ERα, Src and P38 MAPK.  |  Zhu, Y., et al. 2012. Biomed Pharmacother. 66: 569-77. PMID: 23102719
  8. Effect of gestrinone in endometriosis tissue and endometrium.  |  Kauppila, A., et al. 1985. Fertil Steril. 44: 466-70. PMID: 2996949
  9. Clinical comparison of mifepristone and gestrinone for laparoscopic endometriosis.  |  Song, J., et al. 2018. Pak J Pharm Sci. 31: 2197-2201. PMID: 30463812
  10. Dydrogesterone in the treatment of endometriosis: evidence mapping and meta-analysis.  |  Peng, C., et al. 2021. Arch Gynecol Obstet. 304: 231-252. PMID: 33398505
  11. Compatibility of Gestrinone, Nimesulide, and Piroxicam in Pentravan for Transdermal and Transmucosal Application.  |  Polonini, H., et al. 2021. Int J Pharm Compd. 25: 422-426. PMID: 34623968
  12. Gestrinone (R2323) binding to steroid receptors in human uterine endometrial cytosol.  |  Tamaya, T., et al. 1986. Acta Obstet Gynecol Scand. 65: 439-41. PMID: 3490730
  13. Repurposing gestrinone for tumor suppressor through P21 reduction regulated by JNK in gynecological cancer.  |  Ciou, HH., et al. 2022. Transl Res. 243: 21-32. PMID: 34921996
  14. Gestrinone inhibits macrophage function and mitogen-stimulated lymphocyte proliferation in vitro.  |  Viganò, P., et al. 1994. J Reprod Immunol. 27: 63-71. PMID: 7807472
  15. [Effects of gestrinone on experimental endometriosis in rabbits].  |  Giu, Y., et al. 1995. Zhonghua Fu Chan Ke Za Zhi. 30: 735-7. PMID: 8728919

Ordering Information

Product NameCatalog #UNITPriceQtyFAVORITES

Gestrinone, 100 mg

sc-205334
100 mg
$146.00

Gestrinone, 500 mg

sc-205334A
500 mg
$582.00