Hexaphenylcyclotrisiloxane
Hexaphenylcyclotrisiloxane (CAS: 512-63-0; Formula: C36H30O3Si3; MW: 594.88) is a versatile organosilicon compound. It finds application as a building block in silicone chemistry and as a reagent in specific organic synthesis pathways. Its unique siloxane structure offers thermal stability and specific reactivity, making it valuable for advanced material development and research purposes. TSS supplies this chemical for laboratory and industrial applications.

Chemical Synthesis
Hexaphenylcyclotrisiloxane serves as a precursor and building block in the synthesis of complex organosilicon polymers and materials. Its structure allows for controlled introduction of phenyl and siloxane units.
Organosilicon Research
This compound is utilized in academic and industrial research for developing novel silicon-based materials, including high-performance polymers and specialty coatings.
Reagent in Organic Chemistry
It can act as a reagent in specific organic transformations, leveraging the reactivity of the siloxane ring and phenyl substituents for targeted chemical modifications.
| Molecular weight | 594.88 |
|---|---|
| Empirical formula | C36H30O3Si3 |
| Boiling point | 300 °C/1 mmHg(lit.) |
| Melting point | 184-188 °C(lit.) |

Hazard statements
- H315Causes skin irritation
- H319Causes serious eye irritation
- H335May cause respiratory irritation
Precautionary statements
- P261Avoid breathing dust, fume, gas or vapours
- P305IF IN EYES
| Protective equipment | dust mask type N95 (US), Eyeshields, Gloves |
|---|---|
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xi |
| Risk statements (R) | 36/37/38 |
| Safety statements (S) | 26-36 |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
Documentation
Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.
Supply & logistics
Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.
What is Hexaphenylcyclotrisiloxane used for?
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Hexaphenylcyclotrisiloxane is used in chemical synthesis, particularly as a building block for organosilicon polymers and in research for developing novel silicon-based materials.
What are the CAS number and formula for Hexaphenylcyclotrisiloxane?
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The CAS number is 512-63-0 and the molecular formula is C36H30O3Si3.
What grade and purity does Tech Serve Solutions supply for Hexaphenylcyclotrisiloxane?
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Tech Serve Solutions supplies Hexaphenylcyclotrisiloxane typically as a research or technical grade. Specific purity and assay details are available upon request for lot-specific Certificates of Analysis. We do not represent this product as USP, BP, or EP grade.
How should Hexaphenylcyclotrisiloxane be handled safely?
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Handle Hexaphenylcyclotrisiloxane with appropriate personal protective equipment, including a dust mask (type N95 US recommended), eyeshields, and gloves. Ensure good ventilation and avoid dust formation. Refer to the Safety Data Sheet for detailed handling information.
Is Hexaphenylcyclotrisiloxane a hazardous substance?
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Yes, Hexaphenylcyclotrisiloxane is classified as a Warning substance. It can cause skin irritation (H315), serious eye irritation (H319), and may cause respiratory irritation (H335).
How is Hexaphenylcyclotrisiloxane packaged and exported by TSS?
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Tech Serve Solutions packages Hexaphenylcyclotrisiloxane securely for domestic and international shipment, adhering to all relevant transport and export regulations for chemical compounds.
How can I request a sample or quote for Hexaphenylcyclotrisiloxane?
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To request a sample or a quote for Hexaphenylcyclotrisiloxane, please use the 'Request a Quote' or 'Contact Us' form on our website, clearly stating the product name and CAS number.
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