| HS Code | 160481 |
| Chemical Name | 1,3:2,4-Bis(5-methyl-2-benzoxazolyl)thiophene |
| Cas Number | 7128-64-5 |
| Appearance | yellowish-green crystalline powder |
| Molecular Formula | C26H18N2O2S |
| Molecular Weight | 422.50 g/mol |
| Melting Point | 201-203°C |
| Solubility | insoluble in water, soluble in organic solvents |
| Ionic Nature | nonionic |
| Maximum Absorption Wavelength | 374 nm |
| Maximum Fluorescence Wavelength | 434 nm |
| Light Fastness | excellent |
| Thermal Stability | high |
| Main Applications | brightening of thermoplastics such as PVC, PS, PE, PET, PP |
| Shade | blue-violet fluorescence |
| Dosage Recommendation | 0.01–0.05% |
As an accredited Optical Brightener OB-2 factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | Optical Brightener OB-2 is packaged in 25 kg fiber drums, lined with plastic bags for moisture protection, and securely sealed. |
| Container Loading (20′ FCL) | Container Loading (20′ FCL) for Optical Brightener OB-2: Typically 10 metric tons packed in 25kg fiber drums, securely palletized for export. |
| Shipping | Optical Brightener OB-2 is typically shipped in 25 kg fiber drums or cartons with inner polyethylene bags to prevent moisture exposure. It should be stored and transported in a cool, dry, and well-ventilated area, away from direct sunlight and incompatible materials, ensuring containers are tightly sealed to maintain product integrity. |
| Storage | **Optical Brightener OB-2** should be stored in a cool, dry, well-ventilated area away from direct sunlight and moisture. Keep the container tightly sealed and store away from incompatible substances such as strong acids and oxidizers. Avoid extreme temperatures to prevent product degradation. Handle with care to avoid dust formation, and use proper personal protective equipment when handling or transferring the chemical. |
| Shelf Life | Optical Brightener OB-2 has a shelf life of 24 months when stored in a cool, dry place in sealed containers. |
Competitive Optical Brightener OB-2 prices that fit your budget—flexible terms and customized quotes for every order.
For samples, pricing, or more information, please contact us at +8615651039172 or mail to sales9@bouling-chem.com.
We will respond to you as soon as possible.
Tel: +8615651039172
Email: sales9@bouling-chem.com
Flexible payment, competitive price, premium service - Inquire now!