High-energy phosphate

High-energy phosphate can mean one of two things:

• The phosphate-phosphate (phosphoanhydride/phosphoric anhydride/macroergic/phosphagen)^[1][2][3] bonds formed when compounds such as adenosine diphosphate (ADP) and adenosine triphosphate (ATP) are created.
• The compounds that contain these bonds, which include the nucleoside diphosphates and nucleoside triphosphates, and the high-energy storage compounds of the muscle, the phosphagens. When people speak of a high-energy phosphate pool, they speak of the total concentration of these compounds with these high-energy bonds.