UV Absorber 384 (CAS: 127519-17-9): Structural Characteristics and Application Prospects

UV Absorber 384 (CAS: 127519-17-9, 108-65-6) is a benzotriazole-based ultraviolet absorber with the molecular formula C27H39N3O3 and an average molecular weight of 451.61 g/mol. Owing to its excellent UV absorption properties and stability, it is widely used in polymers, coatings, and plastics for photostabilization. In recent years, with continuous progress in materials science and organic synthesis, UV Absorber 384 has not only demonstrated outstanding optical protection performance but also shown potential applications in organic synthesis and corrosion inhibition.

1. Molecular Structure and Properties

The core structure of UV Absorber 384 is a benzotriazole derivative, chemically named Octyl 3-(3-(2H-benzo[d][1,2,3]triazol-2-yl)-5-(tert-butyl)-4-hydroxyphenyl)propanoate.

Functional Groups: The molecule contains hydroxyl, ester, and tert-butyl substituents, endowing it with strong UV absorption and free radical scavenging abilities.

UV Absorption Characteristics: This compound effectively absorbs ultraviolet radiation in the 280–400 nm range, preventing high-energy UV radiation from damaging molecular structures and thereby slowing down photodegradation.

2. Applications in Organic Synthesis

As a building block in synthetic chemistry, UV Absorber 384 exhibits multiple reaction possibilities:

Redox Reactions: The phenolic hydroxyl group and benzotriazole moiety facilitate electron transfer, making it useful for synthesizing new heterocyclic compounds.

Substitution Reactions: The aromatic and triazole rings provide multiple reaction sites for functionalized derivatives.

New Material Development: It has potential value as an intermediate in pharmaceutical design and functional polymer synthesis.

3. Applications in Materials Science

UV Filter

UV Absorber 384 is widely used in plastics, rubber, coatings, and optical films, significantly enhancing weatherability and durability. Its low volatility and excellent compatibility make it suitable for incorporation into polyolefins, polyesters, polyurethanes, and various other polymers.

Protective Coatings and Sunscreens

Due to its high UV absorption efficiency, UV Absorber 384 is applied in sunscreen formulations and protective architectural coatings, preventing aging, discoloration, or performance loss caused by UV radiation.

Corrosion Inhibitor

Studies have shown that benzotriazole derivatives can form protective films on metal surfaces, inhibiting oxidation and corrosion. UV Absorber 384 demonstrates similar anticorrosion potential, making it useful in metal-protective coatings and composite materials.

4. Application Prospects

With the growing demand for high-performance polymers and advanced coatings, the application scope of UV Absorber 384 is expected to expand further:

Eco-Friendly Materials: Providing light stabilization for environmentally friendly polymers and biodegradable plastics.

High-Performance Coatings: Enhancing outdoor durability when combined with nanomaterials or novel resin systems.

Functional Molecule Design: Serving as a representative benzotriazole derivative for the synthesis of organic molecules with photonic or electronic functions.

Conclusion

As a benzotriazole-based UV absorber, UV Absorber 384 not only exhibits excellent performance in conventional polymer protection but also shows broad potential in organic synthesis and advanced material protection. With ongoing advances in functional materials, this compound is expected to play an increasingly important role in UV protection, weather-resistant coatings, and corrosion inhibition.