2-tert-butyl-6-(5-chloro-2H-benzotriazol-2-yl)-4-methylphenol

Product name	2-tert-butyl-6-(5-chloro-2H-benzotriazol-2-yl)-4-methylphenol
Alias	2-(5-Chloro-2-benzenetriazolyl)-6-tert-butyl-4-methylphenol; UV-326; 2-(2'-hydroxy-3'-tert-butyl-5'-methylphenol phenyl)-5-chlorobenzotriazole; light stabilizer UV-326
CAS No.	3896-11-5
EINECS No.	223-445-4
Molecular formula	C₁₇H₁₈ClN₃O
Molecular weight	315.7973
Structural formula
Physicochemical properties	Appearance: Light yellow powder Content: ≥99% Melting point: 138-141℃ Light transmittance: 460nm≥98%; 500nm≥99% Volatile: ≤0.3%
Uses	Mainly used in polyvinyl chloride, polystyrene, unsaturated resin, polycarbonate, polymethyl methacrylate, polyethylene, ABS resin, epoxy resin, etc.