3,9-Bis(2,4-dicumylphenoxy)-2,4,8,10-tetraoxa-3,9-diphosphaspiro[5.5]undecane
3,9-Bis(2,4-dicumylphenoxy)-2,4,8,10-tetraoxa-3,9-diphosphaspiro[5.5]undecane (CAS: 154862-43-8) is a complex organophosphorus compound with the molecular formula C53H58O6P2 and a molecular weight of 852.97 g/mol. This spirocyclic phosphite is primarily utilised as an antioxidant and stabilizer in polymer applications. Its specific structure imparts excellent thermal and hydrolytic stability, making it effective in protecting polymers during processing and throughout their service life.
- Synonyms
- 4,8,10-tetraoxa-3,9-diphosphaspiro[5.5]undecaneC53H58O6P2
![3,9-Bis(2,4-dicumylphenoxy)-2,4,8,10-tetraoxa-3,9-diphosphaspiro[5.5]undecane (C53H58O6P2) — chemical structure, CAS 154862-43-8; Chemistry, fine chemical supplied by Tech Serve Solutions](/_next/image?url=https%3A%2F%2Fpub-f4d920c906024441a773a96f7098e551.r2.dev%2Fimages%2Fproducts%2F154862-43-8.png&w=3840&q=75)
Polymer Antioxidant
Serves as a high-performance antioxidant, particularly effective in polyolefins, styrenics, and engineering plastics. It protects polymers from thermal degradation during high-temperature processing and extends their lifespan by preventing oxidative breakdown.
Stabilizer for Plastics
This compound acts as a stabilizer to maintain the physical properties and appearance of plastics. Its efficacy lies in scavenging free radicals generated during processing or exposure to environmental factors like heat and light.
Materials Science Research
Utilised as a building block or additive in materials science research for developing novel polymer formulations with enhanced durability and resistance to degradation. Its unique phosphite structure offers specific performance benefits.
| Molecular weight | 852.97 |
|---|---|
| Empirical formula | C53H58O6P2 |
| Application | Antioxidant for polymers |
| Melting point | 229-232 °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) | 2 |
| 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 3,9-Bis(2,4-dicumylphenoxy)-2,4,8,10-tetraoxa-3,9-diphosphaspiro[5.5]undecane used for?
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This compound is primarily used as an antioxidant and stabilizer for polymers, protecting them from thermal degradation during processing and use.
What is the CAS number and molecular formula for this compound?
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The CAS number is 154862-43-8, and the molecular formula is C53H58O6P2.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies this chemical for research and industrial applications. The specific grade and purity will be detailed on the Certificate of Analysis provided with the product. We do not represent this product as USP, BP, or EP grade unless explicitly stated.
How should this chemical be handled safely?
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Based on GHS information, this compound may cause skin irritation (H315), serious eye irritation (H319), and respiratory irritation (H335). Handle with appropriate personal protective equipment including a dust mask (N95), eyeshields, and gloves. Ensure adequate ventilation.
Is this product available for export?
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Yes, Tech Serve Solutions is a global supplier and exporter of fine chemicals and reagents. We can arrange for export of this product to qualified customers worldwide.
How can I request a sample or quote?
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To request a sample or a quotation, please contact our sales team directly through the website or provide your details via the contact form. Please specify the product name and CAS number.
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