Product Name：UV absorber UV-531
Chemical name：2-Hydroxy-4-n-octoxybenzophenone
CAS
1843-05-6
MF
C21H26O3
Appearance
Light yellow powder
Mol.Wt.
326
Purity
≥99%(HPLC)
Volatile matter
≤0.5%
Product Name
UV absorber UV-531
Chemical name
2-Hydroxy-4-n-octoxybenzophenone
Appearance
Light yellow powder
Transmittance
460nm ≥94% ; 500nm ≥97%
Product features and applications
1. UV 531 is a UV absorber for 270-340nm.
2. It has a synergistic effect with hindered amine light stabilizers, and can improve the weather resistance of products when used together with benzotriazole ultraviolet absorbers.
3. Applied to PE, PP, PVC, PS, PC, PP fiber, EVA, etc., it can provide good light stabilization effect for coatings, polyurethane and rubber.
Recommended dosage
PVC Polyolefin
0.15-0.5% 0.15-0.75%
UV absorber