Diadenosine hexaphosphate hydrolase (AMP-forming) (, hAps1, NUDT11 (gene), hAps2, NUDT10 (gene)) is an enzyme with systematic name P1,P6-bis(5'-adenosyl)hexaphosphate nucleotidohydrolase (AMP-forming). This enzyme catalyses the following chemical reaction
A divalent cation is essential for activity.