The molecule is a (2'->5')-dinucleotide composed of two adenosine residues with a triphosphate group at the 5' terminus. It has a role as an antiviral agent and a bacterial metabolite. It is a conjugate acid of a 5'-triphosphoadenylyl-(2'->5')-adenosine(5-).
[[(2R,3R,4R,5R)-5-(6-aminopurin-9-yl)-4-[[(2R,3S,4R,5R)-5-(6-aminopurin-9-yl)-3,4-dihydroxyoxolan-2-yl]methoxy-hydroxyphosphoryl]oxy-3-hydroxyoxolan-2-yl]methoxy-hydroxyphosphoryl] phosphono hydrogen phosphate