UV absorber is a kind of light stabilizer, which can absorb the ultraviolet part of sunlight and fluorescent light source without changing itself.
According to their structure, UV absorber can be divided into salicylic acid esters, benzophenones, benzotriazoles, substituted acrylonitriles, triazines, etc. The most widely used are benzophenones and benzotriazoles.
Name:Ultraviolet absorber UV-531，Chemical Name:2-Hydroxy-4-Octyloxy Benzophenone，CAS # : 1843-05-6，It is capable of strongly absorbing ultraviolet radiation with the wavelength of 300~375nm, and has low volatility, being almost colorless.
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