Product Name:2,5-Bis(5-tert-butyl-2-benzoxazolyl)thiophene
Purity:99%
Appearance:Yellow Powder or Yellow-Green Powder
Sample:Available
Storage:In Dark Place
CAS No.: 7128-64-5
2,5-Bis(5-tert-butyl-2-benzoxazolyl)thiophene Cas 7128-64-5
Typical Properties
Chemical Name:2,5-Bis(5-tert-butyl-2-benzoxazolyl)thiophene
Cas No:7128-64-5
EINECS No:230-426-4
Synonyms:Optical Brightener OB; Fluorescent whitening agent OB;BBOT
Molecular Weight:430.56
Molecular Formula:C26H26N2O2S
Molecular Structure:
| Item | Specification |
| Melting Point | 199-201 °C |
| Boiling Point | 531.2±45.0 °C |
| Density | 1.26 |
| Refractive index | 1.636 |
| Fp | >350°C |
| pKa | 3.03±0.1 |
| Ash content | ≦0.5% |
| Volatile matter | ≦0.5% |
| Maximum Absorption Wavelength | 374 nm |
| Maximum Emission Wavelength | 435 nm |
Usage
General-Purpose Plastics: PVC,PE,PP,PS,ABS,SAN,SB — Whitening, brightening, and anti-yellowing improvement.
Engineering Plastics: PC, PMMA, POM, PET, Nylon (PA) — Enhanced whiteness and gloss.
Elastomers / Synthetic Leather: Polyurethane, Cellulose Acetate, Foamed Synthetic Leather.
Solvent-based Coatings, UV-curable Coatings, Varnishes, Wood Finishes — Whitening and anti-yellowing protection.
Packaging and Shipping
25kg/bag
According to customer requirments.
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2,5-Bis(5-tert-butyl-2-benzoxazolyl)thiophene Cas 7128-64-5