Octadecamethyloctasilane structure

Octadecamethyloctasilane

TL;DR: Octadecamethyloctasilane (CAS 3704-48-1) is a chemical compound with molecular formula C18H54Si8 and molecular weight 494.24 g/mol, supplied by Kehong Biological (Henan Kehong Biological Technology Co., Ltd.) with CRO/CDMO custom synthesis services.

[dimethyl(trimethylsilyl)silyl]-[[[[dimethyl(trimethylsilyl)silyl]-dimethylsilyl]-dimethylsilyl]-dimethylsilyl]-dimethylsilane

Also Known As: Octadecamethyloctasilane, Octasilane, octadecamethyl-, [dimethyl(trimethylsilyl)silyl]-[[[[dimethyl(trimethylsilyl)silyl]-dimethylsilyl]-dimethylsilyl]-dimethylsilyl]-dimethylsilane, 1,1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,8-Octadecamethyl-1,2,3,4,5,6,7,8-octasilaoctane, RefChem:366668

CAS: 3704-48-1
Molecular Formula C18H54Si8
Molecular Weight 494.24 g/mol
LogP 7.462
Topological Polar Surface Area 0.0 Ų
Hydrogen Bond Donors 0
Hydrogen Bond Acceptors 0
Rotatable Bonds 7
Exact Mass 494.23798
Heavy Atoms 26
Complexity 468.0

Chemical Identifiers

CAS Number 3704-48-1
SMILES C[Si](C)(C)[Si](C)(C)[Si](C)(C)[Si](C)(C)[Si](C)(C)[Si](C)(C)[Si](C)(C)[Si](C)(C)C
InChIKey VIUXNBMIWZHBFF-UHFFFAOYSA-N

Product Overview

Octadecamethyloctasilane (CAS 3704-48-1), with molecular formula C18H54Si8 and molecular weight 494.24 g/mol. IUPAC: [dimethyl(trimethylsilyl)silyl]-[[[[dimethyl(trimethylsilyl)silyl]-dimethylsilyl]-dimethylsilyl]-dimethylsilyl]-dimethylsilane.

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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 Octadecamethyloctasilane

XLogP
7.462
TPSA (Topological Polar Surface Area)
0.0
Hydrogen Bond Donors
0
Hydrogen Bond Acceptors
0
Rotatable Bonds
7
Heavy Atoms
26
Complexity
468.0
Exact Mass
494.23798
Monoisotopic Mass
494.23798
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 Octadecamethyloctasilane

The XLogP value of 7.462 indicates that Octadecamethyloctasilane is lipophilic (fat-soluble), which may influence its absorption, distribution, and formulation strategy. With a topological polar surface area (TPSA) of 0.0 Ų, Octadecamethyloctasilane exhibits relatively low polarity, potentially indicating favorable cell membrane permeability. Following Lipinski's Rule of Five, Octadecamethyloctasilane has 0 hydrogen bond donor(s) and 0 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 Octadecamethyloctasilane?

The CAS number of Octadecamethyloctasilane is 3704-48-1.

What is the molecular formula of Octadecamethyloctasilane?

The molecular formula of Octadecamethyloctasilane is C18H54Si8.

What is the molecular weight of Octadecamethyloctasilane?

The molecular weight of Octadecamethyloctasilane is 494.24 g/mol.

Where can I buy Octadecamethyloctasilane?

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

Does KEHONG BIO offer custom synthesis for Octadecamethyloctasilane?

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

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