NucleotidesAdenosine 5′-triphosphate (ATP)December 28, 2023Article MW = 503.15 g/mol pKa,α = 0.9; pKa,β = 1.4; pKa,γ1 = 3.8; pKa,γ2 = 6.5 PubChem KEGG ChEBI Wiki