BX UV 320
BX UV 320 Chemical Name: 2-(2′-hydroxy-3′,5′-di-t-butyl-phenyl)benzotriazole Formula C20H25N3O Molecular Weight 323.4 CAS# 3846-71-7 Physical Properties: Appearance Yellowish crystalline powder Melting Point 152-156℃ Ash ≤0.1% Loss On Drying ≤0.3% Purity ≥99%(HPLC) Transmittance 460 nm≥97% 500 nm≥98% Applications: UV 320 is an efficient light stabilizer, strong UV absorption and low volatility. It can effectively protect polyester…