• 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

  • F4881

    Flumequine Sodium

    Fluoroquinolone; bacterial DNA gyrase inhibitor...

    ≥98%
  • B5871

    Bortezomib

    Proteasome inhibitor.

    ≥98%
  • A0934

    Acivicin

    Glutamine analog; γ-glutamyl transferase, CTP ...

    ≥98%
  • A5478

    Antipain Dihydrochloride

    Oligopeptide found in Actinomycetes; protease i...

  • T3040

    Thienylpentyl Isothiocyanate

    Thienylbutyl ITC analog.

    ≥98%
  • M1565

    S-Methyl-L-cysteine-S-oxide

    Organosulfur found in cruciferous vegetables; anal...
    ≥95%
  • S5753

    Somatostatin-28 (1-14)

    Endogenous neuropeptide hormone; somatostatin a...

    ≥95%
  • D183744

    Destruxin A

    Cyclic depsipeptide is a secondary metabolite i...

    ≥98%
  • C8502

    CV-70

    1,8-Diaza-anthracene-tetrone; JNK and ERK5 inhi...

    ≥70%
  • G5875

    Gossypol Acetic Acid

    Bcl-2, Bcl-xl, sialyl transferase inhibitor.

    ≥98%
  • R5700

    Ro 61-8048

    Kynurenine 3-hydroxylase inhibitor.

    ≥99%
  • G4781

    Glucoraphanin Potassium

    Glucosinolate found in cruciferous vegetables.<...

    ≥98%
  • M5746

    Molsidomine

    NO donor; annexin A2 inhibitor.

    ≥98%
  • J291331

    JH-II-127

    Selective inhibitor of LRRK2.

    ≥98%
  • C5645

    Colchicine

    Found in Colchicum; microtubule polymerization ...

    ≥97%
  • E5202

    Enalapril

    ACE inhibitor.

    ≥98%
  • D1761

    15-Acetyl-deoxynivalenol

    Type A trichothecene mycotoxin produced by Fusa...

    ≥98%, TLC
  • N3422

    Nifekalant Hydrochloride

    Voltage-gated K+ channel blocker.

    ≥98%
  • L0350

    Lamivudine

    Nucleoside (thymidine) analog; RT inhibitor.

    ≥99%
  • T6817

    D(+)-Trehalose Dihydrate

    α-Linked disaccharide composed of α-glucose u...

    ≥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