Allopregnane-3B,16 structure

Allopregnane-3B,16

TL;DR: Allopregnane-3B,16 (CAS 25300-97-4) is a chemical compound with molecular formula C21H36O3 and molecular weight 336.27 g/mol, supplied by Kehong Biological (Henan Kehong Biological Technology Co., Ltd.) with CRO/CDMO custom synthesis services.

(3S,5S,8R,9S,10S,13S,14S,16R,17S)-17-[(1S)-1-hydroxyethyl]-10,13-dimethyl-2,3,4,5,6,7,8,9,11,12,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthrene-3,16-diol

Also Known As: Allopregnane-3B,16, AlloProgesterone Impurity 1, Pregnane-3,16,20-triol, KST-1A3157, (3

CAS: 25300-97-4
Molecular Formula C21H36O3
Molecular Weight 336.27 g/mol
LogP 4.6
Topological Polar Surface Area 60.7 Ų
Hydrogen Bond Donors 3
Hydrogen Bond Acceptors 3
Rotatable Bonds 1
Exact Mass 336.26645
Heavy Atoms 24
Complexity 493.0

Chemical Identifiers

CAS Number 25300-97-4
SMILES C[C@@H]([C@H]1[C@@H](C[C@@H]2[C@@]1(CC[C@H]3[C@H]2CC[C@@H]4[C@@]3(CC[C@@H](C4)O)C)C)O)O
InChIKey PYSDRYREDSFAKC-DTRVYOHYSA-N

Product Overview

Allopregnane-3B,16 (CAS 25300-97-4), with molecular formula C21H36O3 and molecular weight 336.27 g/mol. IUPAC: (3S,5S,8R,9S,10S,13S,14S,16R,17S)-17-[(1S)-1-hydroxyethyl]-10,13-dimethyl-2,3,4,5,6,7,8,9,11,12,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthrene-3,16-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 Allopregnane-3B,16

XLogP
4.6
TPSA (Topological Polar Surface Area)
60.7
Hydrogen Bond Donors
3
Hydrogen Bond Acceptors
3
Rotatable Bonds
1
Heavy Atoms
24
Complexity
493.0
Exact Mass
336.26645
Monoisotopic Mass
336.26645
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 Allopregnane-3B,16

The XLogP value of 4.6 indicates that Allopregnane-3B,16 is lipophilic (fat-soluble), which may influence its absorption, distribution, and formulation strategy. The TPSA of 60.7 Ų falls within the moderate polarity range, balancing permeability and solubility for Allopregnane-3B,16. Following Lipinski's Rule of Five, Allopregnane-3B,16 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 Allopregnane-3B,16?

The CAS number of Allopregnane-3B,16 is 25300-97-4.

What is the molecular formula of Allopregnane-3B,16?

The molecular formula of Allopregnane-3B,16 is C21H36O3.

What is the molecular weight of Allopregnane-3B,16?

The molecular weight of Allopregnane-3B,16 is 336.27 g/mol.

Where can I buy Allopregnane-3B,16?

You can request a quote for Allopregnane-3B,16 directly from KEHONG BIO. Contact us or email info@kehongbio.com for pricing and availability.

Does KEHONG BIO offer custom synthesis for Allopregnane-3B,16?

Yes, KEHONG BIO provides custom synthesis services for Allopregnane-3B,16 and related compounds. Contact us with your specific requirements including quantity, purity, and timeline.

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