21-Chloro-17alpha-pregn-5-en-20-yne-3beta,17-diol structure

21-Chloro-17alpha-pregn-5-en-20-yne-3beta,17-diol

TL;DR: 21-Chloro-17alpha-pregn-5-en-20-yne-3beta,17-diol (CAS 975-48-4) is a chemical compound with molecular formula C21H29ClO2 and molecular weight 348.19 g/mol, supplied by Kehong Biological (Henan Kehong Biological Technology Co., Ltd.) with CRO/CDMO custom synthesis services.

(3S,8R,9S,10R,13S,14S,17S)-17-(2-chloroethynyl)-10,13-dimethyl-1,2,3,4,7,8,9,11,12,14,15,16-dodecahydrocyclopenta[a]phenanthrene-3,17-diol

Also Known As: 21-Chloro-17alpha-pregn-5-en-20-yne-3beta,17-diol, (3S,8R,9S,10R,13S,14S,17S)-17-(2-chloroethynyl)-10,13-dimethyl-1,2,3,4,7,8,9,11,12,14,15,16-dodecahydrocyclopenta[a]phenanthrene-3,17-diol, (3S,8R,9S,10R,13S,14S,17S)-17-(2-chloroethynyl)-10,13-dimeth

CAS: 975-48-4
Molecular Formula C21H29ClO2
Molecular Weight 348.19 g/mol
LogP 4.4
Topological Polar Surface Area 40.5 Ų
Hydrogen Bond Donors 2
Hydrogen Bond Acceptors 2
Rotatable Bonds 1
Exact Mass 348.1856
Heavy Atoms 24
Complexity 643.0

Chemical Identifiers

CAS Number 975-48-4
SMILES C[C@]12CC[C@@H](CC1=CC[C@@H]3[C@@H]2CC[C@]4([C@H]3CC[C@]4(C#CCl)O)C)O
InChIKey SCKRQJZQWRFQPI-GCOKGBOCSA-N

Product Overview

21-Chloro-17alpha-pregn-5-en-20-yne-3beta,17-diol (CAS 975-48-4), with molecular formula C21H29ClO2 and molecular weight 348.19 g/mol. IUPAC: (3S,8R,9S,10R,13S,14S,17S)-17-(2-chloroethynyl)-10,13-dimethyl-1,2,3,4,7,8,9,11,12,14,15,16-dodecahydrocyclopenta[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.
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Chemical Property Profile of 21-Chloro-17alpha-pregn-5-en-20-yne-3beta,17-diol

XLogP
4.4
TPSA (Topological Polar Surface Area)
40.5
Hydrogen Bond Donors
2
Hydrogen Bond Acceptors
2
Rotatable Bonds
1
Heavy Atoms
24
Complexity
643.0
Exact Mass
348.1856
Monoisotopic Mass
348.1856
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 21-Chloro-17alpha-pregn-5-en-20-yne-3beta,17-diol

The XLogP value of 4.4 indicates that 21-Chloro-17alpha-pregn-5-en-20-yne-3beta,17-diol is lipophilic (fat-soluble), which may influence its absorption, distribution, and formulation strategy. With a topological polar surface area (TPSA) of 40.5 Ų, 21-Chloro-17alpha-pregn-5-en-20-yne-3beta,17-diol exhibits relatively low polarity, potentially indicating favorable cell membrane permeability. Following Lipinski's Rule of Five, 21-Chloro-17alpha-pregn-5-en-20-yne-3beta,17-diol 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 21-Chloro-17alpha-pregn-5-en-20-yne-3beta,17-diol?

The CAS number of 21-Chloro-17alpha-pregn-5-en-20-yne-3beta,17-diol is 975-48-4.

What is the molecular formula of 21-Chloro-17alpha-pregn-5-en-20-yne-3beta,17-diol?

The molecular formula of 21-Chloro-17alpha-pregn-5-en-20-yne-3beta,17-diol is C21H29ClO2.

What is the molecular weight of 21-Chloro-17alpha-pregn-5-en-20-yne-3beta,17-diol?

The molecular weight of 21-Chloro-17alpha-pregn-5-en-20-yne-3beta,17-diol is 348.19 g/mol.

Where can I buy 21-Chloro-17alpha-pregn-5-en-20-yne-3beta,17-diol?

You can request a quote for 21-Chloro-17alpha-pregn-5-en-20-yne-3beta,17-diol directly from KEHONG BIO. Contact us or email info@kehongbio.com for pricing and availability.

Does KEHONG BIO offer custom synthesis for 21-Chloro-17alpha-pregn-5-en-20-yne-3beta,17-diol?

Yes, KEHONG BIO provides custom synthesis services for 21-Chloro-17alpha-pregn-5-en-20-yne-3beta,17-diol and related compounds. Contact us with your specific requirements including quantity, purity, and timeline.

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