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| Ultraviolet absorbent UV-320 |
Ingredients:
2-(2'-??–3',5'-????Benzene?)Benzene???
Introduction:
This product is high-efficiency light stabilizing agent, and widely used in plastic and other organics. It has strong ultraviolet radiation absorption ability and low volatility.
Molecular formula:C20H25N3O
Molecular weight:323.4
CAS NO.: 3846-71-7
Chemical structural formula: 
Sale code: PS-320
Technical index:
Appearance:light yellow powder
Content: ≥ 99%
Melting point: 152-154°C
Loss on drying: ≤ 0.5%
Ash: ≤ 0.1%
Light transmittance: 440nm≥97%
500nm≥98%
Toxicity: low toxicity,rattus norvegicus oral LD 50 >2g/Kg weight.
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