The molecule is an organophosphate oxoanion that is the pentaanionic form of adenosine 5'-tetraphosphate. It is a conjugate base of an adenosine 5'-(pentahydrogen tetraphosphate).
[[[[(2R,3S,4R,5R)-5-(6-aminopurin-9-yl)-3,4-dihydroxyoxolan-2-yl]methoxy-oxidophosphoryl]oxy-oxidophosphoryl]oxy-oxidophosphoryl] phosphate