Keywords: Menatetrenone molecule ball.png Ball-and-stick model of the menatetrenone molecule one of the nine forms of Vitamin K<sub>2</sub> Color code 505050 Carbon C black<br> F0F0F0 Hydrogen H white<br> F51E1E Oxygen O red<br> 2011-08-24 own DS Visualizer Jynto talk Space-filling version cc-zero Images by Jynto Naphthoquinones |