Complaint
Fluorescent whitening agent Optical Brightener OB-1 with cas 1533-45-5 Fluorescent Brightener OB-1
| 2,2'-(1,2-Ethenediyldi-4,1-phenylene)bisbenzoxazole Basic information | |
| Product Name: | 2,2'-(1,2-Ethenediyldi-4,1-phenylene)bisbenzoxazole |
| CAS: | 1533-45-5 |
| MF: | C28H18N2O2 |
| MW: | 414.45 |
| EINECS: | 216-245-3 |
| 2,2'-(1,2-Ethenediyldi-4,1-phenylene)bisbenzoxazole Chemical Properties | |
| Melting point | >300 °C(lit.) |
| Boiling point | 533.34°C (rough estimate) |
| density | 1.2151 (rough estimate) |
| refractive index | 1.5800 (estimate) |
| storage temp. | -20°C |
| pka | 1.45±0.10(Predicted) |
| Stability: | Stable. Incompatible with strong oxidizing agents. |
| InChIKey | ORACIQIJMCYPHQ-KTKRTIGZSA-N |
| CAS DataBase Reference | 1533-45-5(CAS DataBase Reference) |
| Item | Specification |
| Appearance | bright yellow cystal powder |
| Melting point | 353-360 ºC |
| Assay | ≥99.0% |
| Ash | ≤0.5% |
| Loss on drying | ≤0.3% |
| Minimum ultraviolet absorption wavelength | 374nm |
| Maximum ultraviolet absorption wavelength | 434nm |
