N2- (6- Aminohexyl)guanosine- 3', 5'- cyclic monophosphate ( 2-AH-cGMP )
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
N²- (6- (6-[Biotinyl]aminohexanoyl)aminohexyl)guanosine- 3', 5'- cyclic monophosphate, sodium salt ( 2-Biotin-14-cGMP / 2-[Biotin]-AH-cGMP )
N², 2'- O- Dibutyrylguanosine- 3', 5'- cyclic monophosphate ( DB-cGMP / Dibutyryl-cGMP ), sodium salt
N2- Methylguanosine- 3', 5'- cyclic monophosphate ( 2-Me-cGMP ), sodium salt
β- Phenyl- 1, N²- ethenoguanosine- 3', 5'-cyclic monophosphate- [8- thiomethylamido- (octaethoxy)- ethylamidomethylthio- 8]- β- phenyl- 1, N²- ethenoguanosine- 3', 5'-cyclic monophosphate ( PET-cGMP-8-TMAmd-(EO)₈-EAmdMT-8-cGMP-PET ), sodium salt