By certification 
| Trade Name | Ultraviolet Absorbent UV-326 |
| Chemical Name | 2-(2' -Hydroxy-3' -tert-buty-5' -methyl-phenyl)-5-chlorobenzortiazole |
| CAS NO. | 3896-11-5 |
| Molecular Formula | C17H18N3Ocl |
| Molecular Weight | 315.80 |
| Appearance | Light Yellow Powder |
| Melting Point | ≥138°C |
| Volatile | ≤0.5% |
| Ash | ≤0.1% |
| Content | ≥99% |
| Transmittance | 460nm≥93% ; 500nm≥96% |
| Application & Usage | UV-326 is especially suited for polyolefins, cold cured polyesters and wood lacquers. UV 326 has a wide range of indirect food approvals in polyolefins. It has a low volatility at high temperatures and high resistance to thermal degradation and can therefore be used without significant loss or decomposition in the polyolefin compounding and moulding process. |
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