Ultraviolet absorbent UV-770

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-770
Appearance: white or slight yellow crystalline powder 
Assay: ≥ 99%
Involatile matter: ≤ 0.5% 
Melting point: 81-86℃
Ash: ≤ 0.1%

Light transmittance:

Wavelength nm	Light transmittance %
425	≥ 98
500	≥ 99