has role is deprotonated form of independent continuant ADP ADP(3-) 5'-O-[(phosphonatooxy)phosphinato]adenosine gmelin:341336 adenosine 5'-diphosphate ADP trianion A nucleoside 5'-diphosphate(3−) arising from deprotonation of all three diphosphate OH groups of adenosine 5'-diphosphate (ADP); major species present at pH 7.3. CHEBI:456216 adenosine 5'-diphosphate beilstein:3783669 ADP nucleoside 5'-diphosphate(3-) human metabolite fundamental metabolite ADP(2-)