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Hexadecamethylcyclooctasiloxane structure
Fine Chemical

Hexadecamethylcyclooctasiloxane

TL;DR: Hexadecamethylcyclooctasiloxane (CAS 556-68-3) is a chemical compound with molecular formula C16H48O8Si8 and molecular weight 592.1503 g/mol, supplied by CoreyChem (Career Henan Chemical Co., Ltd.) with ISO-certified quality and global shipping.

2,2,4,4,6,6,8,8,10,10,12,12,14,14,16,16-hexadecamethyl-1,3,5,7,9,11,13,15-octaoxa-2,4,6,8,10,12,14,16-octasilacyclohexadecane

Also Known As: HEXADECAMETHYLCYCLOOCTASILOXANE, Cyclooctasiloxane, hexadecamethyl-, CYCLOMETHICONE 8, Hexadecamethyl-cyclooctasioxane, hexadecamethyl-cyclooctasiloxane

CAS Number
556-68-3
Molecular Formula
C16H48O8Si8
Molecular Weight
592.1503 g/mol
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Application Areas

Top 5 of 9 IPC patent classification(s) from the SureChEMBL global patent database.

Coatings & Adhesives (12 patents) Electronic Chemicals (5 patents) Lubricants & Additives (30 patents) Organic Building Blocks (5 patents) Organometallic Reagents (6 patents)

Technical Specifications

Molecular FormulaC16H48O8Si8
Molecular Weight592.1503 g/mol
XLogP5.75
Topological Polar Surface Area (TPSA)73.8 Ų
Hydrogen Bond Donors0
Hydrogen Bond Acceptors8
Rotatable Bonds0
Exact Mass592.1503 Da
Heavy Atoms32
Complexity450.0
SMILESC[Si]1(O[Si](O[Si](O[Si](O[Si](O[Si](O[Si](O[Si](O1)(C)C)(C)C)(C)C)(C)C)(C)C)(C)C)(C)C)C
InChIKeyXKJMJYZFAWYREL-UHFFFAOYSA-N

Product Description

Applications: Hexadecamethylcyclooctasiloxane is used in polymer chemistry and functional materials synthesis, as well as lubricant and fuel additive formulations. It commonly serves as a versatile building block for organic synthesis. Available from CoreyChem as both catalog item and custom-synthesis project (mg to ton scale), with full analytical documentation (COA, MSDS, HPLC, NMR, MS).

A polymer intermediate supplied by CoreyChem, Hexadecamethylcyclooctasiloxane (CAS 556-68-3) has the molecular formula C16H48O8Si8 and a molecular weight of 592.15 g/mol. Synonyms include HEXADECAMETHYLCYCLOOCTASILOXANE and Cyclooctasiloxane, hexadecamethyl-.

Custom synthesis and full analytical documentation (COA/MSDS) are available from CoreyChem. Request a quotation with your required quantity and purity for current lead time and pricing.

Chemical Property Profile of Hexadecamethylcyclooctasiloxane

XLogP
5.75
TPSA (Topological Polar Surface Area)
73.8
Hydrogen Bond Donors
0
Hydrogen Bond Acceptors
8
Rotatable Bonds
0
Heavy Atoms
32
Complexity
450.0
Exact Mass
592.1503
Monoisotopic Mass
592.1503
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 Hexadecamethylcyclooctasiloxane

The XLogP value of 5.75 indicates that Hexadecamethylcyclooctasiloxane is lipophilic (fat-soluble), which may influence its absorption, distribution, and formulation strategy. The TPSA of 73.8 Ų falls within the moderate polarity range, balancing permeability and solubility for Hexadecamethylcyclooctasiloxane. Following Lipinski's Rule of Five, Hexadecamethylcyclooctasiloxane has 0 hydrogen bond donor(s) and 8 hydrogen bond acceptor(s), which may warrant consideration for formulation optimization.

Frequently Asked Questions

What is the CAS number of Hexadecamethylcyclooctasiloxane?

The CAS number of Hexadecamethylcyclooctasiloxane is 556-68-3.

What is the molecular formula of Hexadecamethylcyclooctasiloxane?

The molecular formula of Hexadecamethylcyclooctasiloxane is C16H48O8Si8.

What is the molecular weight of Hexadecamethylcyclooctasiloxane?

The molecular weight of Hexadecamethylcyclooctasiloxane is 592.1503 g/mol.

What are the applications of Hexadecamethylcyclooctasiloxane?

Hexadecamethylcyclooctasiloxane is used in polymer chemistry and functional materials synthesis, as well as lubricant and fuel additive formulations. It commonly serves as a versatile building block for organic synthesis. Available from CoreyChem as both catalog item and custom-synthesis project...

Where can I buy Hexadecamethylcyclooctasiloxane?

You can request a quote for Hexadecamethylcyclooctasiloxane directly from CoreyChem. Contact us or email [email protected] for pricing and availability.

Does CoreyChem offer custom synthesis for Hexadecamethylcyclooctasiloxane?

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

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