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CFS-6565, Octaphenylcyclotetrasiloxane, Cas No. 546-56-5

Typical Properties of Octaphenylcyclotetrasiloxane:

Chemical Name


Cas No







Crystal powder


min 98%

Melting Point



Description of Octaphenylcyclotetrasiloxane

CFS-6565, Octaphenylcyclotetrasiloxane is a siloxane known as phenyl D4 or P4. It is especially suitable for the preparation of heat resistant phenyl silicone fluids and other organic polymers.

Application of Octaphenylcyclotetrasiloxane

CFS-6565 can be used in antifouling coatings to reduce the surface energy of coatings, increase the flexibility of film and decrease bubbles in the process.
CFS-6565 can be used with vinyl silicone oil for the synthesis of phenyl vinyl silicone oil. It can increase the viscosity, refractive index and heat stability of the finished product. Such phenyl vinyl silicone oil is mainly applied in LED encapsulation.
CFS-6565 can be used as a raw material for the synthesis of organic silicone products and pharmaceutical intermediates.
CFS-6565 can also be used to produce phenyl silicone rubbers and other organic silicone materials.

Packaging of Octaphenylcyclotetrasiloxane

CFS-6565 is offered in 25L carbon drums and 100L carbon drums.
Please contact Co-Formula team for any special packaging request.

Storage of Octaphenylcyclotetrasiloxane

CFS-6565 should be stored in a cool, well-ventilated place, and avoid exposure to humidity.
CFS-6565 should be stored in its original containers and used up as soon as possible after opening.
When stored in a strictly sealed and unopened container, CFS-6565 has a shelf life of 12months.
Keywords about Co-Formula:
ISO9000 & ISO14000 Certified Manufacturer of Organic Silicone Materials;
Professional manufacturer and supplier of silane coupling agents;
Specialized in silicone oils and silane modified polymers;
Leading producer of specialty functional silanes & siloxanes;

Keywords about Co-Formula Focused Industries:
Adhesives & Sealants | Chemical Synthesis | Chromatographic Columns |
Electronic and Electrical Components | Health Care | Paints, Inks & Coatings |
Personal Care | Rubbers & Plastics | Textiles & Fabrics | Wires, Cables & Pipes

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