• 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

  • R5774

    Roscovitine

    CDK inhibitor, L-type Ca2+ channel blocker.

    ≥98%
  • C600000

    CP 55940

    Non-selective CB receptor agonist.

    ≥97%
  • I0416

    Iberin

    Isothiocyanate found in cruciferous vegetables,...

    ≥97%
  • C9808

    CZC-54252

    LRRK2 inhibitor.

    ≥98%
  • I7757

    Itopride Hydrochloride

    AChE inhibitor, D2 antagonist.

    ≥98%
  • N3378

    S-Nitrosoglutathione

    NO donor.

    ≥95%
  • I1257

    Idoxuridine

    Nucleoside (deoxyuridine) analog; DNA chain ter...

    ≥98%
  • E7357

    Esomeprazole Potassium

    (S) isomer of omeprazole; H+/K+ ATPase and MAO-...

    ≥98%
  • A2244

    Aflatoxicol

    Mycotoxin, metabolite of aflatoxin B1 produced ...

    ≥98%
  • A6229

    Aphidicolin

    Diterpene antibiotic produced by Cephalosporum;...

    ≥98%
  • A2052

    Aflatoxin M1

    Mycotoxin produced by species of Aspergillus; D...

    ≥98%
  • M5853

    Moniliformin sodium salt

    Mycotoxin produced by species of Fusarium; pote...

    ≥98%
  • C2965

    Chromium Picolinate

    Used to prevent chromium deficiency and to decr...

    ≥98%
  • C0254

    Candesartan Celexetil Ester

    AT1 inhibitor.

    ≥98%
  • G1651

    Geniposidic Acid

    Iridoid glucoside found in Eucommia, Castilleja...

    ≥98%
  • F4780

    Fluoxetine Hydrochloride

    FIASMA, SERT inhibitor, 5-HT and σ1 antagonist...

    ≥98%
  • P5845

    Polydatin

    Stilbenoid glucoside found in Polygonum.

    ≥97%
  • P0219

    Paeonol

    Found in Paeonia, Arisaema, Dioscorea; MAO-A/B ...

    ≥98%
  • W0275

    R-(+)-Warfarin Sodium >99%ee

    Coumarin; VKORC1 inhibitor.

    ≥99%
  • S164098

    Seco-rapamycin

    Rapamycin analog

    ≥73%

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