N6- (6- Aminohexyl)adenosine- 3', 5'- cyclic monophosphate; immobilized on agarose gel ( 6-AH-cAMP-Agarose )
8- Azidoguanosine- 3', 5'- cyclic monophosphate ( 8-N₃-cGMP ), sodium salt
N2- (6- Aminohexyl)guanosine- 3', 5'- cyclic monophosphate ( 2-AH-cGMP )