Keywords: Urea 3D spacefill.png Space-filling model of the urea molecule also known as carbamide an important biological compound and industrial raw material Colour code 505050 Carbon C black<br> F0F0F0 Hydrogen H white<br> F51E1E Oxygen O red<br> 3C50FA Nitrogen N blue<br> 2011-06-25 own DS Visualizer Jynto talk Ball-and-stick version cc-zero Urea Images by Jynto |