UV-9

Chemical name : 2-Hydroxy-4-methoxy-benzotriazole
Molecular Formula : C₁₄H₁₂O₃
Molecular Weight : 228.3
CAS NO : 131-57-7
Chemical structure : 
The sale code name : UV-9
Specification :

Appearance : Slightly yellow or white powder

Assay : ≥ 99%

Melting point : 62-66 °C

Loss on drying : ≤ 0.5%

Ash : ≤ 0.1%
Toxicity : Rat LD 50 >7.4g/kg body weight taking orally. 
Use : As the ultraviolet absorption agent, it is available to unsaturated polyester, polyethylene and PVC etc. The max absorbing wavelength range is 290-400nm.The general consumption: 0.1-0.5% for thin matter, 0.05-0.2% for thick matter.
Storage and transportation : The chemical stability is good. It can be stored and transported according to the general chemical matter regulation.