Urethane is a carbamate ester obtained by the formal condensation of ethanol with carbamic acid.Urethane appears as odorless colorless crystals or white powder.
Ethyl carbamate (also called urethane) is an organic compound with the formula CH3CH2OC(O)NH2. It is an ester of carbamic acid and a white solid. Despite its name, it is not a component of polyurethanes.