Ent-Estradiol structure

Ent-Estradiol

TL;DR: Ent-Estradiol (CAS 3736-22-9) is a chemical compound with molecular formula C18H24O2 and molecular weight 272.18 g/mol, supplied by Kehong Biological (Henan Kehong Biological Technology Co., Ltd.) with CRO/CDMO custom synthesis services.

(8S,9R,13R,14R,17R)-13-methyl-6,7,8,9,11,12,14,15,16,17-decahydrocyclopenta[a]phenanthrene-3,17-diol

Also Known As: ent-Estradiol, estradiol, 1-Estradiol, Estradiol, (-)-, Ent estradiol

CAS: 3736-22-9
Molecular Formula C18H24O2
Molecular Weight 272.18 g/mol
LogP 4.0
Topological Polar Surface Area 40.5 Ų
Hydrogen Bond Donors 2
Hydrogen Bond Acceptors 2
Rotatable Bonds 0
Exact Mass 272.17764
Heavy Atoms 20
Complexity 382.0

Chemical Identifiers

CAS Number 3736-22-9
SMILES C[C@@]12CC[C@@H]3[C@@H]([C@H]1CC[C@H]2O)CCC4=C3C=CC(=C4)O
InChIKey VOXZDWNPVJITMN-QXDIGNSFSA-N

Patent-Derived Application Labels

Derived from 1 IPC patent classification(s) across the SureChEMBL global patent database.

Pharmaceutical Intermediates (7 patents)

Product Overview

Ent-Estradiol (CAS 3736-22-9), with molecular formula C18H24O2 and molecular weight 272.18 g/mol. IUPAC: (8S,9R,13R,14R,17R)-13-methyl-6,7,8,9,11,12,14,15,16,17-decahydrocyclopenta[a]phenanthrene-3,17-diol.

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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 Ent-Estradiol

XLogP
4.0
TPSA (Topological Polar Surface Area)
40.5
Hydrogen Bond Donors
2
Hydrogen Bond Acceptors
2
Rotatable Bonds
0
Heavy Atoms
20
Complexity
382.0
Exact Mass
272.17764
Monoisotopic Mass
272.17764
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 Ent-Estradiol

The XLogP value of 4.0 indicates that Ent-Estradiol is lipophilic (fat-soluble), which may influence its absorption, distribution, and formulation strategy. With a topological polar surface area (TPSA) of 40.5 Ų, Ent-Estradiol exhibits relatively low polarity, potentially indicating favorable cell membrane permeability. Following Lipinski's Rule of Five, Ent-Estradiol has 2 hydrogen bond donor(s) and 2 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 Ent-Estradiol?

The CAS number of Ent-Estradiol is 3736-22-9.

What is the molecular formula of Ent-Estradiol?

The molecular formula of Ent-Estradiol is C18H24O2.

What is the molecular weight of Ent-Estradiol?

The molecular weight of Ent-Estradiol is 272.18 g/mol.

Where can I buy Ent-Estradiol?

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

Does KEHONG BIO offer custom synthesis for Ent-Estradiol?

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

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