2,2-Dihydroxyacetic acid

2,2-Dihydroxyacetic acid (CAS No.: 563-96-2) is an endogenous metabolite and the hydrated form of glyoxylic acid, functioning as a reactive intermediate in cellular metabolism and as a component of the glyoxylate cycle that enables the conversion of fatty acids into carbohydrates in certain organisms. It is broadly categorized as a metabolic intermediate and biochemical tool compound, with roles in modulating redox balance, cellular signaling pathways, and enzyme activity. Mechanistically, it has been reported to influence reactive oxygen species generation, promote cellular differentiation processes, and participate in non-enzymatic protein modification leading to the formation of advanced glycation end products, thereby affecting protein function and signaling networks. Its biochemical reactivity and involvement in glyoxylate metabolism link it to metabolic dysregulation, including conditions such as primary hyperoxaluria, making it relevant for studies of metabolic homeostasis and oxidative stress. In vitro, its biological effects are typically observed across low micromolar to millimolar concentration ranges depending on the assay context, reflecting its role as a small, reactive metabolite rather than a highly specific ligand. Consequently, 2,2-dihydroxyacetic acid is widely utilized in cell-based assays and biochemical systems to investigate metabolic flux, redox biology, protein modification processes, and pathway-level responses, with experimental concentrations selected according to specific model systems and research objectives in areas such as cancer biology, microbial metabolism, and metabolic disorder research.