| Product name | Optical Brightener BAC |
| Other name | Fluorescent Brightener BAC-L Optical Brightening Agent 363 |
| Main chemical name | Benzimidazole Derivatives |
| CAS NO | 95078-19-6 |
| C.I.Number | 363 |
| EINECS | 229-802-0 |
| Formula | C21h22n2o6s |
| Specification | Appearance: Brown liquid Ionic character: catinic Whitening Strength: 100±2% |
| Property | With strong fluorescene, excellent whitening performance and bluish-violet shade. Good acid stability, stable in Sodium chlorous. |
| Application | Main be used in whitening of acrylic and blends. |