Octabenzone CAS 1843-05-6

CAS:1843-05-6
MF:C21H26O3
MW:326.43
EINECS:217-421-2
Synonyms:[2-Hhydroxy-4-(octyloxy)phenyl]phenylmethanone; 2-HYDROXY-4-N-OCTOXYBENZOPHENONE; 2-HYDROXY-4-N-OCTYLOXYBENZOPHENONChemicalbookE; 2-HYDROXY-4-(OCTYLOXY)BENZOPHENONE

What is Octabenzone CAS 1843-05-6？

UV absorber UV-531 is a benzophenone ultraviolet absorber, light yellow needle crystalline powder at room temperature, is a high efficiency anti-aging additives with excellent performance, can strongly absorb 270 ~ 340nm ultraviolet light, with light color, non-toxic, good compatibility, small migration, easy to process and other characteristics.

Specification

Item	Specification
Melting point	47-49 °C(lit.)
Boiling point	424.46°C (rough estimate)
Density	1.160g/cm3
Acidity coefficient (pKa)	7.59±0.35(Predicted)
Refractive index	1.6000 (estimate)
Flash point	102℃
LogP	7.360 (est)

Application

UV absorber UV-531 is widely used in PE, PVC, PP, PS, PC, polycarbonate, plexiglass, polypropylene fiber and vinyl acetate. And for dry phenolic and alkyd varnishes, polyurethanes, acrylics, epoxies and other air drying products and automotive finishing paints, powder coatings, rubber and other products, to provide them with a good light stabilization effect. Dosage 0.1-0.5%.