1,1,1,5,5,5-Hexamethyl-3-(trimethylsilyl)trisiloxane structure

1,1,1,5,5,5-Hexamethyl-3-(trimethylsilyl)trisiloxane

TL;DR: 1,1,1,5,5,5-Hexamethyl-3-(trimethylsilyl)trisiloxane (CAS 139347-50-5) is a chemical compound with molecular formula C9H28O2Si4 and molecular weight 280.12 g/mol, supplied by Kehong Biological (Henan Kehong Biological Technology Co., Ltd.) with CRO/CDMO custom synthesis services.

trimethyl-[trimethylsilyl(trimethylsilyloxy)silyl]oxysilane

Also Known As: 1,1,1,5,5,5-Hexamethyl-3-(trimethylsilyl)trisiloxane, Bis(trimethylsilyloxy)silyl-trimethyl-silane, trimethyl-[trimethylsilyl(trimethylsilyloxy)silyl]oxysilane, 2,2,2-Trimethyl-1,1-bis(trimethylsilyloxy)disilane

CAS: 139347-50-5
Molecular Formula C9H28O2Si4
Molecular Weight 280.12 g/mol
LogP 3.3265
Topological Polar Surface Area 18.5 Ų
Hydrogen Bond Donors 0
Hydrogen Bond Acceptors 2
Rotatable Bonds 5
Exact Mass 280.11664
Heavy Atoms 15
Complexity 184.0

Chemical Identifiers

CAS Number 139347-50-5
SMILES C[Si](C)(C)O[SiH](O[Si](C)(C)C)[Si](C)(C)C
InChIKey PLFZASMKXQOBLS-UHFFFAOYSA-N

Product Overview

1,1,1,5,5,5-Hexamethyl-3-(trimethylsilyl)trisiloxane (CAS 139347-50-5), with molecular formula C9H28O2Si4 and molecular weight 280.12 g/mol. IUPAC: trimethyl-[trimethylsilyl(trimethylsilyloxy)silyl]oxysilane.

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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 1,1,1,5,5,5-Hexamethyl-3-(trimethylsilyl)trisiloxane

XLogP
3.3265
TPSA (Topological Polar Surface Area)
18.5
Hydrogen Bond Donors
0
Hydrogen Bond Acceptors
2
Rotatable Bonds
5
Heavy Atoms
15
Complexity
184.0
Exact Mass
280.11664
Monoisotopic Mass
280.11664
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 1,1,1,5,5,5-Hexamethyl-3-(trimethylsilyl)trisiloxane

The XLogP value of 3.3265 indicates that 1,1,1,5,5,5-Hexamethyl-3-(trimethylsilyl)trisiloxane is lipophilic (fat-soluble), which may influence its absorption, distribution, and formulation strategy. With a topological polar surface area (TPSA) of 18.5 Ų, 1,1,1,5,5,5-Hexamethyl-3-(trimethylsilyl)trisiloxane exhibits relatively low polarity, potentially indicating favorable cell membrane permeability. Following Lipinski's Rule of Five, 1,1,1,5,5,5-Hexamethyl-3-(trimethylsilyl)trisiloxane has 0 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 1,1,1,5,5,5-Hexamethyl-3-(trimethylsilyl)trisiloxane?

The CAS number of 1,1,1,5,5,5-Hexamethyl-3-(trimethylsilyl)trisiloxane is 139347-50-5.

What is the molecular formula of 1,1,1,5,5,5-Hexamethyl-3-(trimethylsilyl)trisiloxane?

The molecular formula of 1,1,1,5,5,5-Hexamethyl-3-(trimethylsilyl)trisiloxane is C9H28O2Si4.

What is the molecular weight of 1,1,1,5,5,5-Hexamethyl-3-(trimethylsilyl)trisiloxane?

The molecular weight of 1,1,1,5,5,5-Hexamethyl-3-(trimethylsilyl)trisiloxane is 280.12 g/mol.

Where can I buy 1,1,1,5,5,5-Hexamethyl-3-(trimethylsilyl)trisiloxane?

You can request a quote for 1,1,1,5,5,5-Hexamethyl-3-(trimethylsilyl)trisiloxane directly from KEHONG BIO. Contact us or email info@kehongbio.com for pricing and availability.

Does KEHONG BIO offer custom synthesis for 1,1,1,5,5,5-Hexamethyl-3-(trimethylsilyl)trisiloxane?

Yes, KEHONG BIO provides custom synthesis services for 1,1,1,5,5,5-Hexamethyl-3-(trimethylsilyl)trisiloxane and related compounds. Contact us with your specific requirements including quantity, purity, and timeline.

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