DescriptionUrea-3D-balls.png Ball and stick model of the urea molecule. Date 9 November 2009 Source Derived from File:Acetamide-3D-balls.png. Author Jynto
DescriptionUrea-cation-3D-balls.png Ball-and-stick model of the Urea cation. Date 30 June 2010 Source Derived from File:Guanidine-3D-balls.png. Author Ben
DescriptionUrea-nitrate-3D-balls.png Ball-and-stick model of the urea nitrate ionic salt. Date 30 June 2010 Source Derived from File:Urea-cation-3D-balls.png and
DescriptionCarbonic-acid-3D-balls.png Ball and stick model of the carbonic acid molecule. Date 30 January 2010 Source Derived from File:Urea-3D-balls.png. Author Jynto
DescriptionNitrosourea-3D-balls.png Ball-and-stick model of the nitrosourea molecule, a derivative of urea, bearing a nitroso functional group. Date 28