Pronunciation: (yoor'u-thān"),[key] —n.Chem. 1. any derivative of carbamic acid having the formula CH2NO2R.
2. Also called ethyl carbamate, ethyl urethane. a white, crystalline, water-soluble powder, C3H7NO2: used chiefly as a solvent, in organic synthesis, as a fungicide and pesticide, and formerly in cancer treatment. Also,u•re•thanPronunciation: (yoor'u-than").[key]