2-(2'-Hydroxy-5'-methyl-phenyl)benzotriazole CAS NO.2440-22-4

chemical name: 2-(2'-hydroxy-5'-methyl-phenyl)benzotriazole

molecular formula: c13h11n3o
molecular weight: 225.3
sales code: ps-p
appearance: white to pale yellow crystalline powder
content: ≥99%
melting point: 128-130℃
the loss on drying of : ≤0.5%
ash content: ≤0.1%
the transmittance of 440nm≥97%
the transmittance of 500nm≥98%
toxicity: lower toxicity,
uses: as ultraviolet absorbent, this product is mainly suitable for polyester, epoxy cellulose acetate ,polyvinylchloride, polystyrene, pmma, polypropylene and so on. the maximum absorption wavelength range of 270-380nm
general dosage: thin product0.1-0.5% thick product0.05-0.2%