2-(2'-Hydroxy-3',5'-di-tert-pentylphenyl)-benzotriazole CAS 21615-49-6powder-3

2-(2'-Hydroxy-3',5'-di-tert-pentylphenyl)-benzotriazole CAS 21615-49-6powder-2

2-(2'-Hydroxy-3',5'-di-tert-pentylphenyl)-benzotriazole CAS 21615-49-6-powder-1

2-(2′-Hydroxy-3′,5′-di-tert-pentylphenyl)-benzotriazole CAS 21615-49-6

CAS：21615-49-6
Purity：/
Molecular Formula：C22H29N3O
Molecular Weight：351.49
EINECS：247-384-8
Storage Period：Sealed storage

Synonyms: ULTRAVIOLETABSORBERUV-328;TINUVIN328;2-(2′-HYDROXY-3′,5′-DI-TERTAMYLPHENYL)BENZOTRIALE;2-(2-HYDROXY-3,5-DI-TERT-AMYLPHENYL)BENZOTRIAZOLE;2(2′-HYDROXY-3′,5′-DI-TERT-AMYLPHENYL)BENZOTRIAZOLE;4,6-Di-tert-amyl-2-(5-chloro-2H-benzotriazol-2-yl)-phenol;2-(2-Hydroxy-3,5-diamylphenyl)benzotriazole

What is UV-328 CAS 21615-49-6？

UV-328 is an ultraviolet light absorber (UVA) of the hydroxyphenylbenzotriazole class, which imparts outstanding light stability to plastics and other organic substrates.

Application

UV-328 is a highly effective light stabilizer for a variety of plastics and other organic substrates. Its use is recommended for the stabilization of styrene homo- and copolymers, acrylic polymers, unsaturated polyesters, polyvinylchloride, polyolefins, polyurethanes, polyacetals, polyvinyl butyral, elastomers, and adhesives.

Specification

ITEM		STANDARD
Appearance		light yellowish powder or pellet
Melting Point (°C)		81 min
Ash (%)		0.05 max
Volatile matter (%)		0.5 max
Transmittance	440 nm (%)	97 min
	500 nm (%)	98 min
Assay (%)		99.0 min