Deuterated dimethylformamide ((CD<sub>3</sub>)<sub>2</sub>NCOD), also known as deuterated DMF, is an isotopologue of DMF ((CH<sub>3</sub>)<sub>2</sub>NCOH) in which the hydrogen atom ("H") is replaced with a deuterium isotope ("D"). Deuterated DMF is a relatively uncommon solvent used in NMR spectroscopy.