adenosine-3',5'-cyclic phosphorothioate [ (R)-p-cAMPS,(RP)-cAMPS,3,5'-cAMPS,R(p)-cAMPS,RP-cAMP-S,SP-cAMP-S,Sp-cAMPS,adenosine 3',5'-cyclic monophosphorothioate,cyclic APT,adenosine 3',5'-monothionophosphate,adenosine-3',5'-monophosphorothioate,cyclic adenosine 3,'5'-phosphorothioate,p-adenosine 3',5'-cyclic phosphorothiate ] RP-cAMP-S is a protein kinase A inhibitor; SP-cAMP-S is a protein kinase A agonist