Ethinyl estriol structure

Ethinyl estriol

TL;DR: Ethinyl estriol (CAS 108646-70-4) is a chemical compound with molecular formula C20H24O3 and molecular weight 312.17 g/mol, supplied by Kehong Biological (Henan Kehong Biological Technology Co., Ltd.) with CRO/CDMO custom synthesis services.

(8R,9S,13S,14S)-17-ethynyl-13-methyl-7,8,9,11,12,14,15,16-octahydro-6H-cyclopenta[a]phenanthrene-3,6,17-triol

Also Known As: Ethinyl estriol, 19-Norpregna-1,3,5(10)-trien-20-yne-3,6,17-triol, (17xi)-19-Norpregna-1,3,5(10)-trien-20-yne-3,6,17-triol, (8R,9S,13S,14S)-17-ethynyl-13-methyl-7,8,9,11,12,14,15,16-octahydro-6H-cyclopenta[a]phenanthrene-3,6,17-triol

CAS: 108646-70-4
Molecular Formula C20H24O3
Molecular Weight 312.17 g/mol
LogP 2.4
Topological Polar Surface Area 60.7 Ų
Hydrogen Bond Donors 3
Hydrogen Bond Acceptors 3
Rotatable Bonds 1
Exact Mass 312.17255
Heavy Atoms 23
Complexity 536.0

Chemical Identifiers

CAS Number 108646-70-4
SMILES C[C@]12CC[C@H]3[C@H]([C@@H]1CCC2(C#C)O)CC(C4=C3C=CC(=C4)O)O
InChIKey XFBUZQAUNLRYCT-RZMBZTBZSA-N

Product Overview

Ethinyl estriol (CAS 108646-70-4), with molecular formula C20H24O3 and molecular weight 312.17 g/mol. IUPAC: (8R,9S,13S,14S)-17-ethynyl-13-methyl-7,8,9,11,12,14,15,16-octahydro-6H-cyclopenta[a]phenanthrene-3,6,17-triol.

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Safety Data Sheet (MSDS / SDS) View the Laboratory Chemical Safety Summary (LCSS) on PubChem — includes GHS classifications, hazard statements, first aid measures, and handling precautions.
View MSDS →

Chemical Property Profile of Ethinyl estriol

XLogP
2.4
TPSA (Topological Polar Surface Area)
60.7
Hydrogen Bond Donors
3
Hydrogen Bond Acceptors
3
Rotatable Bonds
1
Heavy Atoms
23
Complexity
536.0
Exact Mass
312.17255
Monoisotopic Mass
312.17255
Data Source: Chemical property values are referenced from PubChem, the world's largest open chemistry database maintained by the National Center for Biotechnology Information (NCBI), U.S. National Library of Medicine.

Property Insights of Ethinyl estriol

The XLogP value of 2.4 suggests moderate lipophilicity, balancing water solubility and membrane permeability for Ethinyl estriol. The TPSA of 60.7 Ų falls within the moderate polarity range, balancing permeability and solubility for Ethinyl estriol. Following Lipinski's Rule of Five, Ethinyl estriol has 3 hydrogen bond donor(s) and 3 hydrogen bond acceptor(s), all within the drug-like range, suggesting favorable oral bioavailability potential.

Frequently Asked Questions

What is the typical lead time for this product?
Lead time typically ranges from 3-7 business days for in-stock items. For larger quantities or custom orders, please contact us for specific lead times.
Can you provide samples for testing?
Yes, we offer sample quantities for quality testing. Please submit an inquiry with your requirements and we will arrange samples accordingly.
What documentation do you provide with the product?
We provide COA (Certificate of Analysis), MSDS (Material Safety Data Sheet), and technical data sheets with each shipment.
Do you ship internationally?
Yes, we ship to most countries worldwide. Shipping costs and delivery times vary by location. Please contact us for specific shipping information.

Frequently Asked Questions

What is the CAS number of Ethinyl estriol?

The CAS number of Ethinyl estriol is 108646-70-4.

What is the molecular formula of Ethinyl estriol?

The molecular formula of Ethinyl estriol is C20H24O3.

What is the molecular weight of Ethinyl estriol?

The molecular weight of Ethinyl estriol is 312.17 g/mol.

Where can I buy Ethinyl estriol?

You can request a quote for Ethinyl estriol directly from KEHONG BIO. Contact us or email info@kehongbio.com for pricing and availability.

Does KEHONG BIO offer custom synthesis for Ethinyl estriol?

Yes, KEHONG BIO provides custom synthesis services for Ethinyl estriol and related compounds. Contact us with your specific requirements including quantity, purity, and timeline.

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