31356-94-2 51116-01-9 8-Br-Cyclic GMP 8-Bromo cgmp 8-Bromo-cgmp 8-Bromo-cyclic GMP 8-Bromocyclic GMP 8-Bromocyclic guanosine monophosphate 8-Bromoguanosine 3',5'-cyclic monophosphate 8-Bromoguanosine 3',5'-monophosphate 8-Bromoguanosine, cyclic 3',5'-(hydrogen phosphate) Br Cgmp Guanosine, 8-bromo-, cyclic 3',5'-(hydrogen phosphate)