Product name: Optical Brightener CBS-P
Structural formula: 
Chemical Name: 4,4'-bis(2-sodium sulfonate styryl) biphenyl
C.I. No.: 351
| Appearance | Green- yellow granule |
| Ionic Character | Nonionic |
| Solubility | 40g/l at 25°C |
| E-value | 1105-1181 |
| Moisture Content | ≤ 5.0% |
| Impurity | Null (Water Solution) |
| Odour | Ammoniacal odour free |