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Specifications
| Appearance: | Light yellow crystal or powder |
| Purity(HPLC): | 99%min |
| Melting point: | 128℃~132℃ |
| Ash: | 0.1%max |
| Vdaf: | 0.5%max |
| VLT(500nm): | 98%min |
| VLT(440nm): | 97%min |
Applications
1. UV Absorber in Cosmetics and Sunscreens
Primary function: UV filter for UVA and UVB protection
Used in:
Sunscreens
Day creams
Lip balms
Hair care products
Protects both the formulation and the user's skin from harmful effects of UV exposure.
2. Stabilizer in Plastics and Polymers
Prevents degradation of:
Polyvinyl chloride (PVC)
Polyethylene (PE)
Polypropylene (PP)
Polyesters and styrenic polymers
Enhances weather resistance and longevity of materials exposed to sunlight.
3. Coatings and Paints
Used in industrial coatings, varnishes, and automotive paints as a UV stabilizer
Maintains color integrity and surface properties over time
4. Adhesives and Sealants
Added to UV-sensitive adhesive formulations for:
Packaging
Construction
Automotive interiors
Benefits
Broad-Spectrum UV Protection
Absorbs both UVA and UVB radiation, helping protect the skin from photoaging, sunburn, and DNA damage.
Photostability
Drometrizole is stable under prolonged UV exposure, unlike many organic UV filters that degrade quickly.
Synergy with Other Sunscreen Agents
Often used in combination with drometrizole trisiloxane or octyl methoxycinnamate to enhance SPF and formulation durability.
Low Skin Irritation Potential
Considered safe and non-sensitizing in recommended concentrations for topical applications
Material Protection
Prevents photo-oxidative degradation in plastics, coatings, and fibers, improving durability and appearance.
Conclusion
Drometrizole (CAS 2440-22-4) is a highly effective and photostable UV absorber used across cosmetic, polymer, and coating industries. In personal care products, it enhances sun protection by absorbing both UVA and UVB radiation, contributing to safer and longer-lasting formulations. In industrial applications, it provides photo-stabilization of plastics, adhesives, and coatings, preserving their performance and appearance under sunlight. With a strong safety profile and synergistic compatibility with other sunscreen agents, Drometrizole is a valuable ingredient in both health and material protection solutions.
