UV-327 CAS 3864-99-1

CAS: 3864-99-1

Molecular Formula: C20H24ClN3O

Molecular Weight: 357.88

EINECS: 223-383-8

Synonyms: 2-(3',5'-DI-TERT-BUTYL-2'-HYDROXYPHENYL)-5-CHLOROBENZOTRIAZOLE; 2-(3,5-DI-TERT-BUTYL-2-HYDROXYPHENYL)-5-CHLOROBENZOTRIAZOLE; 2-(5-Chloro-2H-benzotriazol-2-yl)-4,6-bis(1,1-dimethylChemicalbookethyl)-phenol

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What is UV-327 CAS 3864-99-1?

UV absorber UV-327 is an excellent benzotriazole ultraviolet absorber, the absorption wavelength range is greater than UV absorber UV-P, can strongly absorb 300-400 mm of UV, the highest absorption peak is 353 nm, and good chemical stability, small volatility. UV absorber UV-327 is usually a light yellow or white powder, soluble in solvents such as styrene, benzene, toluene, etc.

Specification

Item	Specification
Melting point	150-153 °C(lit.)
Boiling point	469.2±55.0 °C(Predicted)
Density	1,26 g/cm3
Acidity coefficient (pKa)	9.23±0.48(Predicted)
Flash point	234°C

Application

UV absorber UV-327 has low volatility and good compatibility with resin. It is suitable for polypropylene, polyethylene, polyformaldehyde and polymethyl methacrylate, especially for polypropylene fiber. UV absorber UV-327 is an excellent light stabilizer and has good synergistic effect with antioxidant.