Supplier Page from MyBioSource.com for Cyclic (adenosine-(2' -> 5')-monophosphorothioate[Rp]-adenosine-(3' -> 5')-monophosphorothioate[Rp]) (c[A(2',5')pS[Rp]-A(3',5')pS[Rp]] / Rp,Rp-2'3'-c-diAMPSS), sodium salt