Adenosine 5y-triphosphate (ATP) is a central component of energy storage and metabolism in vivo. ATP is use in many cellular processes, respiration, biosynthetic reactions, motility, and cell division. ATP is a substrate of many kinases involved in cell signaling and of adenylate cyclase(s) that produce the second messenger cAMP. ATP provides the metabolic energy to drive metabolic pumps. ATP serves as a coenzyme in a wide array of enzymatic reactions.||Synonyms:|ATP magnesium salt||CAS:|74804-12-9||Molecular Formula:|C10H16N5O13P3·xMg2+||Molecular Weight:|529.47||Purity:|≥95% (HPLC)||Appearance:|White to off-white powder ||Solubility(50mg/ml, H2O):|Colorless, clear, complete||Water Content (NMR):|≤5||Phosphorous (Dry Basis):|15.6-18.8% (ICP)||Magnesium (Dry Basis):|2.5-13.5% (ICP)||EmM and Magnesium Content (Dry basis at 260nm):|14.3-16.2||Biological Activity:|P2 purinergic agonist; increases activity of Ca2+-activated K+ channels; substrate for ATP-dependent enzyme systems ||Storage and Stability:|Store at -20ºC. Stable for 6 months after receipt.