Cyclic (adenosine monophosphate- 8- (2- (6- [biotinyl]aminohexanoyl) aminoethylthio) guanosine monophosphate) (c- (Ap-8-Biotin-11-Gp) / c- (Ap-8-[Biotin]-AET-Gp) ), sodium salt

O[C@@H]1[C@H](OP2([O-])=O)[C@@H](COP(O[C@H]3[C@@H](O)[C@H](N4C(SCCNC(CCCCCNC(CCCC[C@@H]5SC[C@@]6([H])[C@]5([H])NC(N6)=O)=O)=O)=NC7=C4N=C(N)NC7=O)O[C@@H]3CO2)([O-])=O)O[C@H]1N8C=NC9=C8N=CN=C9N.[Na+].[Na+]