A metabolite of estrone
Technical Support & Resources

Visit our FAQ

Contact Us

Toll Free Phone (USA and Canada Only): (888) 526-5351
Direct Phone: (734) 975-3888

Request Technical Support

Technical Support Request

To streamline the process attach the appropriate questionnaire to your inquiry.

Download IHC QuestionnaireDownload WB Questionnaire

View Our Privacy Statement for details on how we use and protect your data. In addition, this site is protected by hCaptcha and its Privacy Policy and Terms of Service apply.

17-Epiestriol

Item No. 33601

Product Insert (PDF)Safety Data Sheet (SDS) (PDF)
Technical Information
Formal Name
estra-1,3,5(10)-triene-3,16α,17α-triol
CAS Number
1228-72-4
Synonyms
  • 16α-hydroxy-17α-Estradiol
  • 16α,17α-Estriol
  • 17α-Estriol
  • 17-epi-Estriol
  • NSC 84051
Molecular Formula
C18H24O3
Formula Weight
288.4
Purity
≥95%
Formulation
A solid
Solubility(Learn about Variance in Solubility)
Methanol: slightly soluble
SMILES
C[C@@]12[C@](C[C@H]([C@H]2O)O)([H])[C@@]3([H])[C@@](CC1)([H])C4=CC=C(O)C=C4CC3
InChi Code
InChI=1S/C18H24O3/c1-18-7-6-13-12-5-3-11(19)8-10(12)2-4-14(13)15(18)9-16(20)17(18)21/h3,5,8,13-17,19-21H,2,4,6-7,9H2,1H3/t13-,14-,15+,16-,17-,18+/m1/s1
InChi Key
PROQIPRRNZUXQM-PNVOZDDCSA-N
Shipping & Storage Information
Storage
-20°C
Shipping
Room temperature in continental US; may vary elsewhere
Recommended Products

Certificates of Analysis & Batch Specific Data

Provide batch numbers separated by commas to download or request available product inserts, QC sheets, certificates of analysis, data packs, and GC-MS data.

Download most recent Certificate of Analysis for this product

    1 mg

    $129

    Add

    5 mg

    $574

    Add
    Lipid Resource Center
    Discover Products & Resources for Lipid Research
    • High-purity lipid standards
    • Lipid roles in biology
    • Lipids in health & disease
    • Lipids for pharmaceutical development
    • Protocols, advice, & resources
    EXPLORE NOW
    Product Description

    17-Epiestriol is a metabolite of estrone (Item No. 10006485).1 It is formed from estrone via a 16α-hydroxy estrone (Item No. 15208) intermediate by reduction of the C-17 ketone. 17-Epiestriol binds to estrogen receptor α (ERα) and ERβ with relative binding affinities of 29 and 80 compared with 17β-estradiol (Item No. 10006315).

    WARNING This product is not for human or veterinary use.

    References & Product Citations
    Product Description References

    1. Brinton, L.A., Trabert, B., Anderson, G.L., et al. Serum estrogens and estrogen metabolites and endometrial cancer risk among postmenopausal women. Cancer Epidemiol. Biomarkers Prev. 25(7), 1081-1089 (2016).