2,2′-(1,2-Ethenediyldi-4,1-phenylene)bisbenzoxazole CAS 1533-45-5
CORN OIL CAS 8001-30-7
24 4 月, 2020Sodium bromate CAS 7789-38-0
24 4 月, 20202,2'-(1,2-Ethenediyldi-4,1-phenylene)bisbenzoxazole CAS 1533-45-5
2,2′-(1,2-Ethenediyldi-4,1-phenylene)bisbenzoxazole Typical Properties
| Fluorescent Brightener 393 Basic information | |
| Product Name: | 2,2′-(1,2-Ethenediyldi-4,1-phenylene)bisbenzoxazole |
| Synonyms: | fluorescentbrightener393;Fluorescent Brightener OB-1;Optical Brightening Agent OB-1 C. I. 393;OpticalBrighteningAgentOB-1C.I.;Benzoxazole, 2,2-(1,2-ethenediyldi-4,1-phenylene)bis-;44BIS2BENZOXAZOYLSTILBENE;2,2′-(Vinylendi-p-phenylen)bisbenzoxazol;4,4 -BIS(2-BENZOXAZOLYL)STLLBENE |
| CAS: | 1533-45-5 |
| MF: | C28H18N2O2 |
| MW: | 414.45 |
| EINECS: | 216-245-3 |
| Product Categories: | Industrial/Fine Chemicals;Stilbenes;-;Building Blocks;Heterocyclic Building Blocks;Oxazoles;brightener |
| Mol File: | 1533-45-5.mol |
| Fluorescent Brightener 393 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 |
| Stability: | Stable. Incompatible with strong oxidizing agents. |
| InChIKey | ORACIQIJMCYPHQ-KTKRTIGZSA-N |
| CAS DataBase Reference | 1533-45-5(CAS DataBase Reference) |
| EPA Substance Registry System | Benzoxazole, 2,2′-(1,2-ethenediyldi- 4,1-phenylene)bis-(1533-45-5) |
2,2′-(1,2-Ethenediyldi-4,1-phenylene)bisbenzoxazole Usage
intermediates
2,2′-(1,2-Ethenediyldi-4,1-phenylene)bisbenzoxazole Packaging and Shipping
5kg/drum, 10kg/drum,25kg/drum
According to customer’s request
2,2′-(1,2-Ethenediyldi-4,1-phenylene)bisbenzoxazole Storage
Keep container closed when not in use. Store in a tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances
Is fluorescent whitening agent harmful to human body?
Fluorescent agent is harmful to human body. Fluorescent agent is a kind of fluorescent dye, also known as white dye, and it is also a kind of compound organic matter. Its characteristic is to excite incident light to produce fluorescence, make the dyed substance produce a flashing effect like fluorite, make the substance visible to the naked eye white, and achieve the whitening effect. Fluorescent brighteners are widely used in the papermaking industry because they can significantly improve the whiteness of paper. In the production process of paper towels, some companies also use fluorescent brighteners to achieve the purpose of improving the whiteness of paper towels.
In recent years, it has been discovered that fluorescent whitening agents are carcinogenic and harmful to human health. Therefore, the paper industry prohibits the use of fluorescent whitening agents to produce food packaging paper, paper towels, etc.
There is a simple method to detect whether the paper towel contains fluorescent whitening agent. Soak the paper towel in clean water for a while, then soak the filter paper, and check it under ultraviolet light after the filter paper is dry. If the filter paper has strong fluorescence, the paper sample contains fluorescent whitening agent. It needs to be explained that although this method is fast, the accuracy is not high. If a small amount of fluorescent whitening agent is added to the paper sample, the detection effect is not obvious, and other Method retest.