8-Bromoguanosine 3',5'-cyclic monophosphate

8-Bromoguanosine 3′,5′-cyclic monophosphate is a brominated derivative of cyclic guanosine monophosphate (cGMP). It acts as an activator of cGMP-dependent protein kinases.

Source: Wikipedia — 8-Bromoguanosine 3',5'-cyclic monophosphate (CC BY-SA 4.0)