2,2,6,6-Tetramethyl-4-piperidone
- CAS No.826-36-8
- GradeIndustrial / Pharmaceutical
- Availability● In Stock
High-purity 2,2,6,6-Tetramethyl-4-piperidone (CAS 826-36-8), a key intermediate for hindered amine light stabilizers (HALS) used in polymer stabilization.
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Product Overview
2,2,6,6-Tetramethyl-4-piperidone is a critical organic intermediate widely employed in the industrial synthesis of hindered amine light stabilizers (HALS). These stabilizers are essential additives in polymers, plastics, and coatings to protect against UV-induced degradation, significantly extending material lifespan under outdoor exposure. With its well-defined steric hindrance and reactive ketone functionality, this compound serves as a foundational building block in advanced stabilization chemistry.
Specifications
| Molecular Formula | C9H17NO |
|---|---|
| Molecular Weight | 155.24 g/mol |
| Appearance | White crystal (may appear light yellow to brownish red in technical grade) |
| Melting Point | 59–61 °C |
| Boiling Point | 105 °C at 18 mmHg |
| Density | 0.882 g/cm³ |
| Refractive Index | 1.463 (20 °C) |
| Flash Point | 73 °C |
| Assay (Purity) | ≥96.0% (Typical: 97.4%) |
| Water Content | ≤2.0% (Typical: 0.5%) |
| Ash Content | ≤0.10% (Typical: 0.03%) |
Industrial Applications
This compound is primarily utilized as a precursor in the multi-step synthesis of high-performance HALS such as Tinuvin® and Chimassorb® derivatives. Its role is indispensable in the production of polyolefins, engineering plastics, automotive coatings, and agricultural films where long-term weatherability is required. Key advantages include:
- Enables cost-effective, scalable routes to commercial light stabilizers
- Offers consistent reactivity and selectivity in nucleophilic addition and condensation reactions
- Compatible with standard industrial handling and purification protocols
Stable under normal ambient conditions, 2,2,6,6-Tetramethyl-4-piperidone should be stored refrigerated at +4°C in tightly sealed containers to maintain optimal quality and prevent moisture uptake.
