UV Absorber 329 cas no.3147-75-9

UV Absorber 329

Ultraviolet absorber UV-329

Synonm:

UV Absorber UV-329

UV Absorber-329

UV Absorber 329

2-[2-Hydroxy-5-(1,1,3,3-tetramethylbutyl)phenyl]benzotriazole

2-(2H-benzotriazol-2-yl)-4-(2,4,4-trimethylpentan-2-yl)phenol

2-(2H-Benzotriazol-2-yl)-4-tert-octylphenol

CAS 3147-75-9 123307-21-1

EINECS 221-573-5

Chemical formula C20H25N3O

Molecular weight 323.432

Density 1.1g/cm3

Melting point 101-108℃

Boiling point 471.8°C at 760 mmHg

Flash point 239.2°C

Vapor Pressure 1.58E-09mmHg at 25°C

Refractive index 1.584

physicochemical properties

Exterior:

off-white powder

content：≥99% (HPLC)

Melting point:103-105℃

Transmittance:440nm≥98%;500nm≥99%

Volatile:≤0.3%

Product use

Suitable for polystyrene, polymethyl methacrylate, polyester, rigid PVC, polycarbonate, ABS resin, etc.

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