SilQon OPCTS

Description and features

SilQon OPCTS ( Octaphenylcyclotetrasiloxane ) is a white solid which has C₄₈H₄₀O₄Si₄ as chemical formula. It can be used for synthesizing pharmaceutical intermediates and organic silicone intermediates, especially for high temperature resistant phenyl silicone oil and other polymers.

Octaphenylcyclotetrasiloxane is also known as phenyl D4.

Availability

United States: Provided SilQon OPCTS is on stock in our local warehouse our lead time is about one week if delivered in 100 Kg drums.

Canada, South America, South Africa and other markets can also be served, please contact our sales department for more details.
➔ Not available in EU countries.

➔ Limited available in the Europe Union as this product has not been REACH registered (yet).

Product Identification

CAS number	546-56-5
EC number	208-904-9
HS code	2931 90 00
EC name	Octaphenylcyclotetrasiloxane
IUPAC name	Octaphenyl-1,3,5,7,2,4,6,8-tetraoxatetrasilocane

Specification

Appearance	White solid
Assay	≥ 98.00 %

Application

Octaphenylcyclotetrasiloxane is a siloxane that is used as a monomer in the production of phenyl silicone rubber. Besides it finds its application in the pharmaceutical industry for the syntheses of intermediates.

Packaging

Available packaging: 100 KG drums.
Special packaging is available on request.

Storage

Store Octaphenylcyclotetrasiloxane in a cool, dry and well-ventilated area and in line with legal requirements.

MSDS

A Material Safety Data Sheets (MSDS) is available for SilQon OPCTS and all other products supplied by Vesta Chemicals BV.

An MSDS describes the hazards of a product and explains how a product can be safely handled, used and stored. Besides it provides important regulatory and emergency response information for the purchased product.

Molecular and structural information

Molecular formula	C₄₈H₄₀O₄Si₄
Molecular weight	793.17 g/mol
InChi key	VSIKJPJINIDELZ-UHFFFAOYSA-N
Structural formula

Physicochemical information

Boiling point	332 ºC
Bulk density	1.185 g/cm3 @ 25 ºC
Flash point	200 ºC
Log Pow	5.09
Solubility in water	Insoluble in water
Vapor pressure	7.23e-11 mmHg

Octaphenylcyclotetrasiloxane | CAS: 546-56-5 | Disclaimer. This information is supplied solely for informational purposes and Vesta Chemicals bv makes no guarantees or warranties, either expressed or implied, with respect to the accuracy and use of this data. All product warranties and guarantees shall be governed by the Standard Terms of Sale. Nothing in this document is legal advice or is a substitute for competent legal advice.