| Product name | Optical Brightener BBU |
| C.I.Number | 220 |
| CAS NO | 16470-24-9 |
| Chemical name | Stibene derivative |
| Appearance | Yellowish granule Fluorescent color Similar to the standard sample Moisture 5% (max) Ionic character anion |
| Application | Mainly be used in whitening of cotton fabric, polyamide fabrics and paper pulp. And also used to increase brightness of light-colored fabrics. |
| Packing | 25Kg Fiber drum or Carton. |