Ultraviolet absorbent UV-329

Chemical Name: Bis(2,2,6,6-tetramethyl-4-piperidinyl)sebacate 
Molecular formula: C₂₈H₅₂O₄N₂
Molecular weight: 484
CAS NO.: 52829-07-9
Chemical Structural formula:

Sales code: PS-9
Appearance: white powder 
Assay: ≥ 99% 
Melting point: 101-106℃ 
Loss on dry: ≤ 0.5% 
Ash: ≤ 0.1%

Light transmittance:

Wavelength nm	Light transmittance %
440	≥ 97
500	≥ 99