Magnesium chloride

Magnesium chloride (CAS No.: 7786-30-3) is a water soluble inorganic divalent cation salt used in life sciences as a magnesium source and ionic strength modulator, primarily classified as a cell culture reagent and biochemical research tool for studies of ion dependent enzymology, membrane electrophysiology, and metabolism related signaling; in biomedical and drug discovery settings, its biological function is linked to restoration or controlled elevation of extracellular and intracellular magnesium availability, thereby influencing ATP dependent kinase and phosphatase systems, magnesium sensitive transport processes, coagulation associated enzymatic cascades, and stress response networks that converge on pathways such as PI3K Akt, AMPK, and calcium magnesium coupled signaling axes in a context dependent manner, while evidence from experimental literature also supports utility in insect cell and insect physiology models where magnesium salt supplementation, including combination paradigms with potassium salts, has been associated with altered carbohydrate, protein, and lipid homeostasis readouts; because this compound is generally applied as an enabling ionic reagent rather than a highly selective ligand, standardized potency metrics such as IC50 or EC50 are often not reported in the conventional target inhibition format, and when quantified in assay systems its effects are typically observed across concentration windows spanning low micromolar to millimolar levels depending on matrix composition, cell type, and endpoint sensitivity; common research applications include optimization of insect and mammalian cell culture media, interrogation of magnesium dependent catalytic reactions in vitro, evaluation of coagulation related biochemical timing parameters, and incorporation into screening workflows as a controlled medium component or comparator condition, with the concentrations or doses used in experiments typically depending on specific experimental designs and research objectives.