The CAS number of Tinuvin 329 is 3147-75-9.
Tinuvin 329 is a widely recognized ultraviolet (UV) absorber. It is primarily utilized to protect a variety of materials, particularly plastics, coatings, and synthetic fibers, from the detrimental effects of UV radiation, such as degradation, discoloration, and loss of mechanical integrity. Its chemical structure enables it to absorb harmful UV light efficiently and dissipate the energy as heat, thereby preserving the quality and extending the lifespan of products.
Understanding CAS Numbers
A CAS (Chemical Abstracts Service) Registry Number serves as a unique numerical identifier for chemical substances. Each distinct chemical compound receives a specific CAS number, ensuring an unambiguous identification regardless of its trade name, common name, or complex chemical nomenclature. This standardized system is indispensable for global communication in chemistry, facilitating research, regulatory compliance, and international commerce by precisely identifying chemical entities.
Key Information for Tinuvin 329
To provide a comprehensive understanding of Tinuvin 329, here are its essential chemical identifiers and properties:
| Property | Value |
|---|---|
| CAS Number | 3147-75-9 |
| Chemical Name | UV Absorber Tinuvin 329 (or UV 5411) |
| Chemical Formula | C20H25N3O |
| Molecular Weight | 323 g/mol |
Applications of Tinuvin 329
The incorporation of Tinuvin 329 is a practical solution for enhancing the UV stability and overall durability of materials frequently exposed to sunlight. Its widespread applications include:
- Plastics: It is crucial for safeguarding diverse polymers like polycarbonates, polyolefins, PVC, and polyesters, which are commonly found in automotive components, packaging, and construction materials.
- Coatings: Employed in protective layers for automotive finishes, wood coatings, and various industrial coatings to prevent issues such as yellowing, chalking, and cracking.
- Fibers: It significantly improves the UV resistance of synthetic fibers, extending the life and maintaining the integrity of textiles and outdoor fabrics.
By utilizing Tinuvin 329, manufacturers can ensure that their products maintain their aesthetic appeal and functional performance over extended periods, even under harsh environmental conditions.
