CAS: 131-55-5 It is mainly used for plastic, etc., as light stabilizer, effective protection of plexiglass and fabrics, also for other UV-absorbers of the intermediates.Looking for ideal Light Stablizer Manufacturer & supplier ? We has a wide selection at great prices to help you get creative. All the UV Absorber are quality guaranteed. We are China Origin Factory of Benzophenone. If you have any question, please feel free to contact us.