Keywords: 3-dehydrocarnitine.svg Skeletal formula of 3-dehydrocarnitine Created using http //www acdlabs com/download/chemsk html ACD/ChemSketch 10 0 and Inkscape Own 2007-06-02 Fvasconcellos 23 19 2 June 2007 UTC Gamma-amino acids Carboxylates Ketones Quaternary ammonium compounds Betaines |