2-(2'-Hydroxy-3', 5'-di-tert-amylphenyl) benzotriazole CAS NO.25973-55-1

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Chemical Name		2-(2'-Hydroxy-3', 5'-di-tert-amylphenyl) benzotriazole
Formula		C₂₂H₂₉N₃O
Structure
CAS NO.		25973-55-1
Molecular Weight		351.5
Specifications	Purity	≥99%(HPLC)
	Melting Point	79-87 ^oC
	Ash	≤0.1%
	Loss On Drying	≤0.5%
	Transmittance	460 nm≥96% 500 nm≥97%
Advantage and Application		This product is a high efficient UV absorber, which can effectively absorb 270-340 nm UV light. The light stability is similar to UV-326 and UV-327, but this product has good dissolubility with the resins. Its heat volatility is low and its durability to washing is very good. This product is suitable for polyolefin (especially PE), polyester, styrene polymers, polyamide, PMMA, PC, elastomers, etc.
Recommended dosage		PS	PE	Polyester	PVC	PC
		0.2-0.5%	0.2-0.4 %	0.3-0.5%	0.2-0.5 %	0.15-0.3%
Package		20KG cartons or drum

Chemical Name		2-(2'-Hydroxy-3', 5'-di-tert-amylphenyl) benzotriazole
Formula		C₂₂H₂₉N₃O
Structure
CAS NO.		25973-55-1
Molecular Weight		351.5
Specifications	Purity	≥99%(HPLC)
	Melting Point	79-87 ^oC
	Ash	≤0.1%
	Loss On Drying	≤0.5%
	Transmittance	460 nm≥96% 500 nm≥97%
Advantage and Application		This product is a high efficient UV absorber, which can effectively absorb 270-340 nm UV light. The light stability is similar to UV-326 and UV-327, but this product has good dissolubility with the resins. Its heat volatility is low and its durability to washing is very good. This product is suitable for polyolefin (especially PE), polyester, styrene polymers, polyamide, PMMA, PC, elastomers, etc.
Recommended dosage		PS	PE	Polyester	PVC	PC
		0.2-0.5%	0.2-0.4 %	0.3-0.5%	0.2-0.5 %	0.15-0.3%
Package		20KG cartons or drum