• 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 $193.90 Please Inquire
500 mg $816.70 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

  • G880000

    GW 405833

    Cannabinoid receptor 2 selective agonist.

    ≥98%
  • C0351

    Carprofen

    NSAID; COX-2 inhibitor.

    ≥98%
  • T1777

    S,S-(+)-Tetrandrine

    Benzylisoquinoline alkaloid originally found in...

    ≥98%
  • C0271

    Carfilzomib

    Epoxomicin analog; proteasome inhibitor.

    ≥98%
  • L0251

    Laminin Peptide CDPGYIGSR

    Laminin-derived nonapeptide.

    ≥98%
  • T9945

    Tylosin Tartrate

    Macrolide; peptidyl transferase inhibitor, prot...

    ≥90%
  • H0169

    Harringtonine

    Cephalotaxine alkaloid originally found in Ceph...

    ≥98%
  • S1848

    Se-Methylseleno-L-cysteine

    Found in plants in Astragalus, Allium, and Bras...

    ≥98%
  • M1687

    Mevinolin

    Statin, naturally produced by mushrooms; HMG-Co...

    ≥97%
  • A6978

    Artemisinin

    Sesquiterpene lactone found in Artemisia (wormw...

    ≥98%
  • B165122

    Bedaquiline

    Bactericidal

    ≥99%
  • A9715

    AZD-8330

    MEK 1/2 inhibitor.

    ≥98%
  • C864760

    CVT-313

    Selective CDK2 inhibitor.

    ≥98%
  • O4102

    Okadaic Acid Ammonium

    Shellfish toxin produced by dinoflagellates and...

    ≥98%
  • P0246

    Palomid 529

    mTOR inhibitor.

    ≥98%
  • E9416

    Exendin-3

    Peptide, GLP-1 analog found in Heloderma; GLP-1...

    ≥95%
  • L3551

    Limonin Glucoside

    Furanolactone found in Citrus.

    ≥95%
  • M4102

    MK-1775

    Wee1 inhibitor.

    ≥98%
  • P6865

    Propranolol Hydrochloride

    β1/2-adrenergic antagonist.

    ≥98%
  • I2118

    Ifenprodil Hemitartrate

    NMDA NR1/NR2B antagonist.

    ≥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

©2025 LKT Laboratories, All Rights Reserved - Products for research use only