Keywords: Ketone-skeletal.png Skeletal formula of a general ketone R<sup>1</sup>C O R<sup>2</sup> Author date of creation self made by Ben Mills at 14 14 8 March 2006 UTC Source user-created image Comments high-resolution black and white PNG; ChemDraw / Photoshop Ketone group 2006-03-08 own assumed Benjah-bmm27 |