Bumetrizole | CAS 3896-11-5
- CAS No.: 3896-11-5
- EINECS No.: 223-445-4
- Molecular Formula: C17H18N3OCl
Product Information of Bumetrizole (CAS 3896-11-5)
Bumetrizole is an intermediate reactant in the synthesis of UV light absorbers for polyester fibers. It is a high efficient UV absorber, which can effectively absorb 270-380 nm UV light.
- Product Name: UV Absorber UV-326
- Chemical Name: 2-(2′-Hydroxy-3′-tert-butyl-5′-methylphenyl)-5- chlorobenzotriazole
- Molecular Weight: 315.8 g/mol
- Synonyms: Bumetrizole; ULTRAVIOLET ABSORBENT UV-326; ULTRA-VIOLET ABSORBER UV-326; Light Stabilizer 326
- Category: Benzotriazole UV Absorber
Specifications of Bumetrizole (CAS 3896-11-5)
| Appearance | Yellowish crystalline powder | ||
| Assay | ≥99% | ||
| Boiling Point | 460.4°C at 760mmHg | ||
| Flash Point | 232.3°C | ||
| Melting Point | 137-142°C | ||
| Ash | ≤0.1% | ||
| Loss on drying | ≤0.5% | ||
| Transmittance | 460nm≥93%; 500nm≥96% | ||
| Recommended dosage | PVC | Polyolefin | ABS |
| 0.2-0.5% | 0.2-0.5% | 0.3-0.5% | |
| Packaging | 20kg or 25kgs/drum or carton | ||
Properties of Bumetrizole (CAS 3896-11-5)
It is odorless, good thermo stability under high temperature. Not stained in alkali，and oil resistant.
Applications or uses of Bumetrizole (CAS 3896-11-5)
UV-326 is an important ultraviolet absorber of Benzotriazole series. With the advantages of stable, nontoxic, higher absorbency for ultraviolet ray, it is widely used in photosensitive materials such as color film, color paper and polymer, outer protective coating and many fields.
- This product almost does not absorb visible light, particularly applicable to colorless and light-colored products.
- Mainly applied to polyolefin (especially in food grade products), PVC, PA, ABS resin, AS resin, PU, etc.
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