Used as a solvent in industrial and laboratory applications where a polar, water-miscible medium is needed. Commonly applied in analytical techniques such as high-performance liquid chromatography (HPLC) due to its UV transparency and consistent polarity. Employed in the synthesis of chemicals, pharmaceuticals, and agrochemicals where controlled solubility and reactivity are required. Also utilized as a cleaning agent for equipment and as a preservative in some biological samples. In fuel applications, it serves as an additive to prevent freezing in fuel lines or as a denaturant for ethanol. Its ability to lower the freezing point of water makes it useful in antifreeze mixtures for certain non-automotive systems.