Keywords: Pyrazine-3D-spacefill.png Space-filling model of the pyrazine molecule a nitrogen heterocycle and simple aromatic ring Colour code 505050 Carbon C black<br> F0F0F0 Hydrogen H white<br> 3C50FA Nitrogen N blue<br> 2011-02-17 own DS Visualizer Jynto talk Ball-and-stick version cc-zero Pyrazine Images by Jynto |