Ultraviolet absorbent UV-P

Chemical Name: 2-(2'-Hydroxy-5'-methyl-phenyl)benzotriazole 
Molecular formula: C₁₃H₁₁N₃O
Molecular weight: 225.3 
CAS NO.: 2440-22-4
Chemical Structural formula:

Sales code: PS-P 
Appearance: white to light yellow crystalline powder 
Assay: ≥ 99% 
Melting point: 128-130 ℃ 
Loss on dry: ≤ 0.5% 
Ash: ≤ 0.1%

Light transmittance:

Wavelength nm	Light transmittance %
440	≥ 97
500	≥ 98