The molecule is an organophosphate oxoanion obtained by deprotonation of the phosphate and triphosphate OH groups of 5'-triphosphoadenylyl-(2'->5')-adenosine. Major microspecies at pH 7.3. It is a conjugate base of a 5'-triphosphoadenylyl-(2'->5')-adenosine.
[[[(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-oxidophosphoryl]oxy-3-hydroxyoxolan-2-yl]methoxy-oxidophosphoryl]oxy-oxidophosphoryl] phosphate