Share on (60801457043):
The specification of Optical Brightener OB-1 / Fluorescent Brightener 393 / FBA 393 cas 1533-45-5 Factory supply
Product name :Optical Brightener OB-1 / Fluorescent Brightener 393 / FBA 393 cas 1533-45-5
CAS No:1533-45-5
Molecular formula :C28H18N2O2
Formula weight ;414.45
The COA of Optical Brightener OB-1 / Fluorescent Brightener 393 / FBA 393 cas 1533-45-5 Factory supply
| Fluorescent Brightener 393 |
| CAS NO | 1533-45-5 |
| Molecular formula | C28H18N2O2 |
| Molecular weight | 414 |
| Performance | Appearance: bright yellow cystal powder Melting point: 357-360℃ Purity: ≥98.50% Minimum ultraviolet absorption wavelength: 374nm Maximum ultraviolet absorption wavelength: 434nm |
| Product picture | ![]() |
| Main ingredients | Two styrene base double benzene and the evil azole |
| Features | 1.high whitening strength and strong fluorescence |
| Application scope | 1.for the whitening of polyester fiber, nylon fiber and polypropylene fiber |
| Application method | Recommended dosage: for each 1000 kg material |
| Packing and storage | Packaging according to customer requirements (25 kg) cartons, paper bucket, paper bags. Packaging according to customer requirements. Dry, dark save |
| Precautions | The product information for reference, research and identification, the Company does not assume the responsibility and patent disputes caused. If you have any technical or problems, please contact me. |

Our other products:
Optical Brightener OB-1 | Fluorescent Brightener 393 | 1533-45-5 |
| Fluorescent Brightener 184 | 7128-64-5 |
| Fluorescent Brightener 351 | 27344-41-8 |
| Fluorescent Brightener 378 | 40470-68-6 |
| Fluorescent Brightener 368 | 5242-49-9 |
| Fluorescent Brightener 135 | 1041-00-5 |
| Fluorescent Brightener 367 | 5089-22-5 |
| UV-P | 2440-22-4 |
25kg/drum
1.Supply sample
2.The packing also can be according the customers` requirment
3.Any inquiries will be replied within 24 hours
4.we provide Commerical Invoice, Packing List, Bill of loading, COA , Health certificate and Origin certificate. If your markets have any special requirements, let us know.
5.Factory price.
6.Prompt delivery. We have good cooperation with many professional forwarders, We can send the products to you once you confirm the order.
7.We can accept various payment methods, L/C, T/T, D/A, D/P, O/A, paypal, Western Union etc., and we cooperate with Sinosure many years.
About us
1.More than 10 years chemical exporting experience
We have produced chemical more than fifteen years., 80% products are for export .
More than 10 years chemical exporting experience. Good and stabilized factory price.
2.Strict quality control system
We has passed through the ISO9001:2015 Quality System Certificate, we have strict quality control system
3.Supply sample
Before order , we can send the sample for your testing . We ensure the quality is the same as bulk quantity .
Our Certification
Our Partners
Our Team
Our Delivery
New products from manufacturers at wholesale prices