 
                            An optical brightener for engineering plastics (PBT, PET, PA) as well as polyester and polyamide fiber applications.
Physical and Chemical Properties
| C. I. Name | Optical brightener for plastics | 
|---|
| PUR | |
| PA | PC ABS | 
| PBT | PP SAN | 
| PET | PE PS | 
| Suitable | Not suitable Limited suitability | 
| Appearance | yellow powder | 
|---|---|
| Melting range | ~362 °C | 
| Chemical character | Benzoxazole derivate |