Ethylene glycol-(OD)₂（Cat No.:I044701）is a deuterated analog of ethylene glycol in which both hydroxyl hydrogen atoms are replaced with deuterium (D), resulting in two O–D bonds. This isotopically labeled compound is commonly used in NMR spectroscopy, especially ²H NMR, to study hydrogen bonding, solvent effects, and reaction mechanisms. It also serves as a deuterated solvent or internal standard in analytical chemistry and materials science. Ethylene glycol-(OD)₂ retains the physical and chemical properties of ethylene glycol while allowing precise monitoring of deuterium exchange and isotope effects in various experimental systems.