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

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

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

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

UV-328 CAS 21615-49-6 is an ultraviolet light absorber (UVA) of the hydroxyphenylbenzotriazole class, which imparts outstanding light stability to plastics and other organic substrates.

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