Demethomycin structure

Demethomycin

TL;DR: Demethomycin (CAS 127984-76-3) is a chemical compound with molecular formula C43H67NO12 and molecular weight 789.47 g/mol, supplied by Kehong Biological (Henan Kehong Biological Technology Co., Ltd.) with CRO/CDMO custom synthesis services.

(1R,9S,12S,13R,14S,17R,18E,21S,23S,24R,25S,27R)-12-[(E)-1-[(1R,3R,4R)-3,4-dihydroxycyclohexyl]prop-1-en-2-yl]-1,14-dihydroxy-23,25-dimethoxy-13,19,21,27-tetramethyl-17-prop-2-enyl-11,28-dioxa-4-azatricyclo[22.3.1.04,9]octacos-18-ene-2,3,10,16-tetrone

Also Known As: Demethomycin, Tacrolimus 31-DMT, Tacrolimus Impurity 20, 31-O-Demethyltacrolimus, 31-O-Demethyl-FK506

CAS: 127984-76-3
Molecular Formula C43H67NO12
Molecular Weight 789.47 g/mol
LogP 3.9849
Topological Polar Surface Area 189.36 Ų
Hydrogen Bond Donors 4
Hydrogen Bond Acceptors 12
Rotatable Bonds 6
Exact Mass 789.4663
Heavy Atoms 56
Complexity 1461.5369

Chemical Identifiers

CAS Number 127984-76-3
SMILES C[C@@H]1C[C@@H]([C@@H]2[C@H](C[C@H]([C@@](O2)(C(=O)C(=O)N3CCCC[C@H]3C(=O)O[C@@H]([C@@H]([C@H](CC(=O)[C@@H](/C=C(/C1)\C)CC=C)O)C)/C(=C/[C@@H]4CC[C@H]([C@@H](C4)O)O)/C)O)C)OC)OC

Product Overview

Demethomycin (CAS 127984-76-3), with molecular formula C43H67NO12 and molecular weight 789.47 g/mol. IUPAC: (1R,9S,12S,13R,14S,17R,18E,21S,23S,24R,25S,27R)-12-[(E)-1-[(1R,3R,4R)-3,4-dihydroxycyclohexyl]prop-1-en-2-yl]-1,14-dihydroxy-23,25-dimethoxy-13,19,21,27-tetramethyl-17-prop-2-enyl-11,28-dioxa-4-azatricyclo[22.3.1.04,9]octacos-18-ene-2,3,10,16-tetrone.

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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 Demethomycin

XLogP
3.9849
TPSA (Topological Polar Surface Area)
189.36
Hydrogen Bond Donors
4
Hydrogen Bond Acceptors
12
Rotatable Bonds
6
Heavy Atoms
56
Complexity
1461.5369
Exact Mass
789.4663
Monoisotopic Mass
789.4663
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 Demethomycin

The XLogP value of 3.9849 indicates that Demethomycin is lipophilic (fat-soluble), which may influence its absorption, distribution, and formulation strategy. The TPSA of 189.36 Ų indicates high polarity, suggesting Demethomycin may have limited membrane permeability but good aqueous solubility. Following Lipinski's Rule of Five, Demethomycin has 4 hydrogen bond donor(s) and 12 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 Demethomycin?

The CAS number of Demethomycin is 127984-76-3.

What is the molecular formula of Demethomycin?

The molecular formula of Demethomycin is C43H67NO12.

What is the molecular weight of Demethomycin?

The molecular weight of Demethomycin is 789.47 g/mol.

Where can I buy Demethomycin?

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

Does KEHONG BIO offer custom synthesis for Demethomycin?

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

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