U-CAT 5050 is a phosphorus-based accelerator with excellent transparency. It is halogen-free and has mild reactivity compared to U-CAT 5003. U-CAT 5050 is an epoxy curing accelerator for anhydride curing systems and is suitable for transparent applications such as LED packages. Physicochemical properties of U-CAT 5050 · CAS No. : 135083-57-8 · Molecular Formula: C11H21NO3P · Molecular weight:...