C2H5O2C2N2
C2H5O2C2N2, also known as diethyl oxalate, is an organic compound with the molecular formula C4H8O4. It is a colorless liquid with a mild, fruity odor. Diethyl oxalate is a diester of oxalic acid, formed by the reaction of oxalic acid with ethanol. It is commonly used as a solvent in chemical synthesis and as a reagent in organic chemistry. The compound is also used in the production of certain pharmaceuticals and as a precursor in the synthesis of other organic compounds. Diethyl oxalate is relatively stable under normal conditions but can decompose upon heating, releasing toxic fumes. It is important to handle the compound with care, using appropriate personal protective equipment and ensuring proper ventilation. The compound is classified as a flammable liquid and should be stored away from heat sources and incompatible substances.