Adenosine 5'-monophosphate is a purine ribonucleoside 5'-monophosphate having adenine as the nucleobase. It has a role as an EC 3.1.3.11 (fructose-bisphosphatase) inhibitor, an EC 3.1.3.1 (alkaline phosphatase) inhibitor, an adenosine A1 receptor agonist, a nutraceutical, a micronutrient, a fundamental metabolite and a cofactor. It is an adenosine 5'-phosphate and a purine ribonucleoside 5'-monophosphate. It is a conjugate base of an adenosine 5'-monophosphate(1+). It is a conjugate acid of an adenosine 5'-monophosphate(2-).