Chemical designation / INCI
2-(2'-Hydroxy-3',5'-di-tert-amylphenyl) benzotriazole (UV- 328)
CAS-number 25973-55-1
EINECS NO 247-384-8
Chemical formula C22H29N3O
Molecule weight 351.50
Use / function UV Stabilizer
Packaging 25kg cardboard drum
Appearance Light yellow powder
Storage conditions Sealed, light-resistant containers
Quality data
Assay (HPLC) 99.0% min
Melting point 79-87℃
Volatiles Content 0.5% max.
Ash content 0.1% max
Transmittance (460) 96% min
Transmittance (500) 97% min
