CAS NO:1843-05-6 yellowish crystals;light color, nontoxic , good compatibility, small mobility, easy processing Property : ... 90%;(500nm)≥95%Characteristics and Uses: This product is a light stabilizer with good performance, capable of absorbing the UV ... radiation of 240-340 nm wavelength with the characteristics of light color, nontoxic , good compatibility, small mobility, easy processing etc. ...