β- (4- Azidophenyl)- 1, N²- etheno- 8- (2- (6- [biotinyl]aminohexanoyl)aminoethylthio)guanosine- 3', 5'- cyclic monophosphate ( 4-N₃-PET-8-Biotin-11-cGMP / 4-N₃-PET-8-[Biotin]-AET-cGMP ), sodium salt
8- (2- (6- [Biotinyl]aminohexanoyl)aminoethylthio)guanosine- 3', 5'- cyclic monophosphate ( 8-Biotin-11-cGMP / 8-[Biotin]-AET-cGMP ), sodium salt
8- Bromo- β- phenyl- 1, N²- ethenoguanosine- 3', 5'-cyclic monophosphate ( 8-Br-PET-cGMP ), sodium salt
8- (3- Butynylthio)guanosine- 3', 5'- cyclic monophosphate ( 8-Bu(3-yne)T-cGMP ), sodium salt
8- Nitroguanosine- 3', 5'- cyclic monophosphate, sodium salt
8- Azidoguanosine- 3', 5'- cyclic monophosphate ( 8-N₃-cGMP ), sodium salt