Furimazine (PBI 3939) (E5806-GRP)

Furimazine (PBI 3939) is a synthetic imidazopyrazinone compound that serves as a substrate for the NanoLuc luciferase (Nluc) enzyme. When combined with Nluc, Furimazine produces exceptionally bright bioluminescent signals in mammalian cells, significantly enhancing the sensitivity of bioluminescence imaging (BLI) applications.