8- (2- (6- [Biotinyl]aminohexanoyl)aminoethylthio)- cyclic diadenosine monophosphate, ( 8-Biotin-11-c-diAMP / 8-[Biotin]-AET-c-diAMP ), sodium salt
2'- O- (6- (6- [Biotinyl]aminohexanoyl)aminohexylcarbamoyl)- cyclic diadenosine monophosphate ( 2'-Biotin-16-c-diAMP / 2'-[Biotin]-AHC-c-diAMP ), sodium salt