ethisterone structure

ethisterone

TL;DR: ethisterone (CAS 47165-57-1) is a chemical compound with molecular formula C21H28O2 and molecular weight 312.21 g/mol, supplied by Kehong Biological (Henan Kehong Biological Technology Co., Ltd.) with CRO/CDMO custom synthesis services.

(17R)-17-ethynyl-17-hydroxy-10,13-dimethyl-2,6,7,8,9,11,12,14,15,16-decahydro-1H-cyclopenta[a]phenanthren-3-one

Also Known As: ethisterone, Aethisteronum, Pregneninolone, Syngestrotabs, Aethisteron

CAS: 47165-57-1
Molecular Formula C21H28O2
Molecular Weight 312.21 g/mol
LogP 3.5
Topological Polar Surface Area 37.3 Ų
Hydrogen Bond Donors 1
Hydrogen Bond Acceptors 2
Rotatable Bonds 1
Exact Mass 312.20892
Heavy Atoms 23
Complexity 637.0

Chemical Identifiers

CAS Number 47165-57-1
SMILES CC12CCC(=O)C=C1CCC3C2CCC4(C3CC[C@]4(C#C)O)C
InChIKey CHNXZKVNWQUJIB-KQMXEUTGSA-N

Product Overview

ethisterone (CAS 47165-57-1), with molecular formula C21H28O2 and molecular weight 312.21 g/mol. IUPAC: (17R)-17-ethynyl-17-hydroxy-10,13-dimethyl-2,6,7,8,9,11,12,14,15,16-decahydro-1H-cyclopenta[a]phenanthren-3-one.

🧪
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 ethisterone

XLogP
3.5
TPSA (Topological Polar Surface Area)
37.3
Hydrogen Bond Donors
1
Hydrogen Bond Acceptors
2
Rotatable Bonds
1
Heavy Atoms
23
Complexity
637.0
Exact Mass
312.20892
Monoisotopic Mass
312.20892
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 ethisterone

The XLogP value of 3.5 indicates that ethisterone is lipophilic (fat-soluble), which may influence its absorption, distribution, and formulation strategy. With a topological polar surface area (TPSA) of 37.3 Ų, ethisterone exhibits relatively low polarity, potentially indicating favorable cell membrane permeability. Following Lipinski's Rule of Five, ethisterone has 1 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 ethisterone?

The CAS number of ethisterone is 47165-57-1.

What is the molecular formula of ethisterone?

The molecular formula of ethisterone is C21H28O2.

What is the molecular weight of ethisterone?

The molecular weight of ethisterone is 312.21 g/mol.

Where can I buy ethisterone?

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

Does KEHONG BIO offer custom synthesis for ethisterone?

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

🤖 科弘生物 AI 助手 ×
您好!我是 科弘生物 AI 助手。可以问我产品搜索、询价、样品或技术问题。如何帮助您?