Loestrin structure

Loestrin

TL;DR: Loestrin (CAS 8015-12-1) is a chemical compound with molecular formula C42H52O5 and molecular weight 636.38 g/mol, supplied by Kehong Biological (Henan Kehong Biological Technology Co., Ltd.) with CRO/CDMO custom synthesis services.

(8R,9S,13S,14S,17R)-17-ethynyl-13-methyl-7,8,9,11,12,14,15,16-octahydro-6H-cyclopenta[a]phenanthrene-3,17-diol;[(8R,9S,10R,13S,14S,17R)-17-ethynyl-13-methyl-3-oxo-1,2,6,7,8,9,10,11,12,14,15,16-dodecahydrocyclopenta[a]phenanthren-17-yl] acetate

Also Known As: Norlestrin, Controvlar, Loestrin, Microgestin, Trentovlane

CAS: 8015-12-1
Molecular Formula C42H52O5
Molecular Weight 636.38 g/mol
LogP 7.68
Topological Polar Surface Area 83.8 Ų
Hydrogen Bond Donors 2
Hydrogen Bond Acceptors 5
Rotatable Bonds 4
Exact Mass 636.3815
Heavy Atoms 47
Complexity 1200.0

Chemical Identifiers

CAS Number 8015-12-1
SMILES CC(=O)O[C@]1(CC[C@@H]2[C@@]1(CC[C@H]3[C@H]2CCC4=CC(=O)CC[C@H]34)C)C#C.C[C@]12CC[C@H]3[C@H]([C@@H]1CC[C@]2(C#C)O)CCC4=C3C=CC(=C4)O
InChIKey GEONECATAKDDLT-JDSZYESASA-N

Patent-Derived Application Labels

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

Pharmaceutical Intermediates (4 patents)

Product Overview

Loestrin (CAS 8015-12-1), with molecular formula C42H52O5 and molecular weight 636.38 g/mol. IUPAC: (8R,9S,13S,14S,17R)-17-ethynyl-13-methyl-7,8,9,11,12,14,15,16-octahydro-6H-cyclopenta[a]phenanthrene-3,17-diol;[(8R,9S,10R,13S,14S,17R)-17-ethynyl-13-methyl-3-oxo-1,2,6,7,8,9,10,11,12,14,15,16-dodecahydrocyclopenta[a]phenanthren-17-yl] acetate.

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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 Loestrin

XLogP
7.68
TPSA (Topological Polar Surface Area)
83.8
Hydrogen Bond Donors
2
Hydrogen Bond Acceptors
5
Rotatable Bonds
4
Heavy Atoms
47
Complexity
1200.0
Exact Mass
636.3815
Monoisotopic Mass
636.3815
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 Loestrin

The XLogP value of 7.68 indicates that Loestrin is lipophilic (fat-soluble), which may influence its absorption, distribution, and formulation strategy. The TPSA of 83.8 Ų falls within the moderate polarity range, balancing permeability and solubility for Loestrin. Following Lipinski's Rule of Five, Loestrin has 2 hydrogen bond donor(s) and 5 hydrogen bond acceptor(s), which may warrant consideration for formulation optimization.

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 Loestrin?

The CAS number of Loestrin is 8015-12-1.

What is the molecular formula of Loestrin?

The molecular formula of Loestrin is C42H52O5.

What is the molecular weight of Loestrin?

The molecular weight of Loestrin is 636.38 g/mol.

Where can I buy Loestrin?

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

Does KEHONG BIO offer custom synthesis for Loestrin?

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

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