UV-531 is used in combination with hindered amines, mainly used in low-density, linear low-density polyethylene and EVA copolymers in agricultural films. It can also be used as a UV shielding agent to protect the contents of industrial/civilian packaging. In addition, when used in combination with hindered amine light stabilizers, it can be used in high-density polyethylene molded products, such as turnover boxes.

It can also provide light stabilization protection for other polymers, such as soft PVC and rubber. Besides, it can be used in combination with antioxidants, phosphites, and other light stabilizers.