UV absorber 312

Synonyms：N-(2-Ethoxyphenyl)-N'-(4-ethylphenyl)-ethlyene diamide；N1-(2-Ethoxyphenyl)-N2-(2-ethylphenyl)ethanediamide 

CAS No.：23949-66-8 

EINECS No.：245-950-9 

Molecular Formula：C₁₈H₂₀N₂O₃ 

Molecular Weight：312.363

Structural Formula：

                                 
Standard：

Items	Specifications
Appearance	White to off-white solid
Purity (HPLC)	Main content：≥90%
	Effective components：≥98.0%
Transmittance	425nm: ≥95.0%
	450nm：≥97.0%
	500nm：≥98.0%
Water	≤0.5%
Loss on drying	≤0.5%
Chrominance	≤15

Properties：It is a white to off-white solid. It has low volatility, good thermal stability, excellent chemical resistance and does not react with alkali.

Uses：UV-312 is a is an ultraviolet absorber of the oxanilide class. It has the characteristics of good compatibility, low volatility, good thermal stability, high absorption efficiency, and does not react with metal ions, does not cross influence with whitening agents, and does not overlap with photoinitiator absorption. It has outstanding light stability against plastics and other substrates, protects polymer and organic substrates from UV radiation, and is particularly suitable for rigid and flexible PVC and polyester. Its application range is wide, such as unsaturated polyester, PVC and PVC plastisol, polyamide, polyvinyl chloride, polycarbonate, acrylic resin, unsaturated resin, cellulose resin, thermoplastic polyurethane, polymethyl methacrylate, powder coatings and solvent coatings.

Storage：Keep in a well-closed container and store in a cool, dry and ventilated place. 

Packing：25kg cardboard drum