Deuterated acetone ((CD3)2CO), also known as Acetone-D6, is a form (called an isotopologue) of acetone (CH3)2CO in which the hydrogen atom ('H') is replaced with deuterium (heavy hydrogen) isotope ('D'). Deuterated acetone is a common solvent used in NMR spectroscopy. Deuterated acetone ((CD3)2CO), also known as Acetone-D6, is a form (called an isotopologue) of acetone (CH3)2CO in which the hydrogen atom ('H') is replaced with deuterium (heavy hydrogen) isotope ('D'). Deuterated acetone is a common solvent used in NMR spectroscopy.