• Skip to primary navigation
  • Skip to main content
  • Skip to footer

LKT Labs

Biochemicals for Life Science Research

  • Products
    • New Products
    • Cancer Biology
    • Cardiovascular
    • Endocrine Signaling and Immunology
    • Metabolic and GI Pathology
    • Microbiology
    • Natural Products
    • Neuroscience
    • Peptides
    • Pharmaceutical Impurities and Derivatives
    • Stem Cell Modulators
  • Services
    • Custom Synthesis
    • Natural Product Isolation
    • Analytical Services
  • Int’l Distributors
  • Support
    • About LKT Labs
    • General Inquiry
    • Bulk Quote Request
    • Document Request
    • Technical Support
    • Catalog Request
    • Product Flyers
  • Contact Us
  • Cart
  • Login / Register
Gestrinone

Gestrinone

Product ID G1975
Cas No. 16320-04-0
Purity ≥98%
Product Unit SizeCostQuantityStock
25 mg $92.00 Please Inquire
100 mg $194.00 Please Inquire
500 mg $817.00 In stock
Bulk Quote

Quicklinks

  • Description
  • Product Info
  • Shipping and Storage
  • Downloads
  • References
  • Description
  • Product Info
  • Shipping and Storage
  • Downloads
  • References
  • Custom Order

Description

Gestrinone is a synthetic anti-progestin hormone that acts as an antagonist at estrogen and progesterone receptors and as an agonist at androgen receptors. Gestrinone is primarily used to treat endometriosis in clinical settings; it is also in clinical trials for potential use as an emergency contraceptive. This compound also exhibits some potential anticancer activity as well, downregulating expression of the progesterone receptor, estrogen receptor, and p-Src, inhibiting growth of uterine leiomyoma cells.

Product Info

Cas No.

16320-04-0

Purity

≥98%

Formula

C21H24O2

Formula Wt.

308.41

Chemical Name

(17a)-13-Ethyl-17-hydroxy-18,19-dinorpregna-4,9,11-trien-20-yn-3-one

IUPAC Name

(8S,13S,14S,17R)-13-ethyl-17-ethynyl-17-hydroxy-1,2,6,7,8,14,15, 16-octahydrocyclopenta[a]phenanthren-3-one

Synonym

13b-ethyl-17a-ethynyl-17b-hydroxy-4,9,11-gonatrien-3-one, 13b-ethyl-17a-ethynyl-D4,9,11-gonatriene-17b-ol-3-one, ethylnorgestrienone

Melting Point

154°C

Appearance

Yellowish crystalline powder

Shipping and Storage

Store Temp

Ambient

Ship Temp

Ambient

Downloads

MSDS

G1975 MSDS PDF

Info Sheet

G1975 Info Sheet PDF

References

Zhu Y, Zhang T, Xie S, et al. Gestrinone inhibits growth of human uterine leiomyoma may relate to activity regulation of ERα, Src and P38 MAPK. Biomed Pharmacother. 2012 Dec;66(8):569-77. PMID: 23102719.

Wu S, Dong J, Cong J, et al. Gestrinone compared with mifepristone for emergency contraception: a randomized controlled trial. Obstet Gynecol. 2010 Apr;115(4):740-4. PMID: 20308833.

Ohno Y, Kitagawa I, Tamura H, et al. Antiestrogenic effect of gestrinone as an inhibitor of [3H]-estradiol binding to nuclear type II sites. Gynecol Obstet Invest. 1991;31(2):97-101. PMID: 2037266.

Venturini PL, Bertolini S, Brunenghi MC, et al. Endocrine, metabolic, and clinical effects of gestrinone in women with endometriosis. Fertil Steril. 1989 Oct;52(4):589-95. PMID: 2806598.

Tamaya T, Fujimoto J, Watanabe Y, et al. Gestrinone (R2323) binding to steroid receptors in human uterine endometrial cytosol. Acta Obstet Gynecol Scand. 1986;65(5):439-41. PMID: 3490730.

Kauppila A, Isomaa V, Rönnberg L, et al. Effect of gestrinone in endometriosis tissue and endometrium. Fertil Steril. 1985 Oct;44(4):466-70. PMID: 2996949.

Custom Order

  • Size of single unit expressed as number (e.g. '500' in the case of 500 mg)
  • Total quantity of unit size desired (e.g. '10' in the case of 10 x 500 mg). If only one unit is desired, you may leave this blank.
  • This field is for validation purposes and should be left unchanged.

Related Products

  • I7457

    1-Isothiocyanato-6-(methylsulfinyl)-hexane

    Synthetic derivative of 6-methylsulfinyl-hexane...

    ≥98%
  • H9620

    7-Hydroxyaristolochic Acid A

    Derivative of aristolochic acid found in Asarum...

    ≥95%
  • R5774

    Roscovitine

    CDK inhibitor, L-type Ca2+ channel blocker.

    ≥98%
  • P7219

    Pseudolaric Acid B

    Diterpene acid found in Pseudolarix kaempferi.<...

    ≥98%
  • N3584

    Nivalenol

    Trichothecene mycotoxin produced by Fusarium; p...

    ≥98%
  • E2542

    Met-Enkephalin Amide

    Endogenous opioid peptide; δOR and μOR agonis...

    ≥95%
  • T3196

    Thymoquinone

    Phytochemical from Nigella sativa.

    ≥98%
  • U6901

    Uracil

    Endogenous pyrimidine base required for product...

    ≥98%
  • A9817

    Azelaic Acid

    Dicarboxylic acid found in Arabidopsis; PPARγ ...

    ≥98%
  • N3422

    Nifekalant Hydrochloride

    Voltage-gated K+ channel blocker.

    ≥98%
  • B3200

    BI-2536

    PLK1 inhibitor.

    ≥98%
  • M1979

    Methyl Salicylate

    Ester found in Spiraea, Betula, and Gaultheria;...

    ≥98%
  • P1761

    Pepstatin

    Aspartyl protease inhibitor.

    ≥98%
  • C2944

    Chlorogenic Acid (from Lonicera)

    Polyphenol derivative of caffeic acid found in ...

    ≥99%
  • R2711

    Recombinant HCV-Core Antigens

    Recombinant HIV core protein antigen fragment.<...

    ≥95%
  • T0249

    Tamibarotene

    RARα/β agonist.

    ≥98%
  • L1878

    Letrozole

    Aromatase inhibitor.

    ≥98%
  • A985134

    AZD-9291

    EGFR inhibitor.

    ≥99%
  • T3203

    Tianeptine Sodium Hydrate

    μOR and δOR agonist, D2/D3 DA potentiator.

    ≥98%
  • C9608

    Cycloastragenol

    Triterpene aglycone found in Radix Astragali; t...

    ≥98%

Footer

  • Contact Us
  • About Us
  • Site Map
  • Terms and Conditions
LKT Laboratories, Inc.
545 Phalen Blvd.
St. Paul MN, 55130

Ph: (888)-558-5227
Fax: (888)-558-7329

©2026 LKT Laboratories, All Rights Reserved - Products for research use only