UV Absorbers UV-531

Chemical Name	2-Hydroxy-4-N-Octoxybenzophenone
English name	FENTASORB 531
CAS No.	1843-05-6
Structural formula
Specification	Appearance	Yellow needle crystalline powder
	Content	≥99%
	Melting point	47-49℃
	Ash	＜0.1%
	Volatile	＜0.5%
	Transmittance	450nm≥90% 500nm≥95%
Storage and packaging	UV-531 Non-toxic, non-flammable, non-explosive, non-corrosive, good storage stability. Paper box lined with plastic bag, net weight 25kg / box, designed according to customer requirements.
Application	UV Absorbent UV-531 is a high-performance anti-aging agent; an absorb 240-320nm ultraviolet radiation; It can protect polymers, and widely used in PE, PVC, PP, PS, PC, organic glass, acrylic acid, auto powder coatings, polyurethane and rubber products. Use level: 0.1%-0.5%.

Properties

It is widely used in PE, PVC, PP, PS, PC, polycarbonate, plexiglass, polypropylene fiber and vinyl acetate. Moreover, it provides good light stability for dry phenolic and alkyd varnish, polyurethane, acrylic, epoxy and other air drying products, as well as automotive finishing paint, powder coating, rubber and other products

CAS No.

1843-05-6

Formula

C21H26O3

Molecular Mass

326.42900

Exact Mass

326.18800

PSA

46.53000

Logp

5.36250