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Release time:2023-02-11

Chemical Name: 2-hydroxy-4-(octyloxy)benzophenone

Alias: BP-12; UV 531; UV-531; Octabenzone; BENZOPHENONE-12; UV Absorber 531; Ultraviolet absorbent UV-531

CAS No.: 1843-05-6

EINECS No.: 217-421-2

Molecular Formula: C21H26O3

Molecular Weight: 326.43

Chemical Structural Formula:

HS Code: 2914509090

Testing Items Specifications
Appearance Light yellow crystalline powder
Purity Not less than 99.0%
Melting Point 47.0℃ ~ 49.0℃
Loss on Drying Not more than 0.20%
Light Transmittance(10% Toluene Solution)

440nm: Not less than 84.0%

460nm: Not less than 96.0%

500nm: Not less than 97.0%

Features and Uses:

Ultraviolet absorber UV-531(BP-12) is an ultraviolet absorber, light yellow crystalline powder, which can effectively absorb ultraviolet rays with a wavelength of 270-330nm. It is mainly used as a light stabilizer for synthetic materials such as polyethylene, polypropylene, polyvinyl chloride, and polyurethane rubber. It is widely used in materials (fields) such as PE, PVC, PP, PS, PC, polycarbonate, plexiglass, polypropylene fiber, and vinyl acetate. And it has a good light stability effect for dry phenolic and alkyd varnishes, polyurethanes, acrylics, epoxies and other air-drying products, as well as automotive refinishing paints, powder coatings, rubber and other products.

Package: 25kg cardboard box or fiber drum.

Shelf Life: 24 Months