Keywords: Metformin-from-xtal-3D-balls.png Ball-and-stick model of the metformin molecule C<sub>4</sub>H<sub>11</sub>N<sub>5</sub> X-ray crystallographic data from cite journal Acta Cryst C45 6 June 1989 911-913 10 1107/S0108270188014246 Structure of metformin hydrochloride M Hariharan S S Rajan and R Srinivasan Image generated in http //accelrys com/products/discovery-studio/visualization/discovery-studio-visualizer html Accelrys DS Visualizer Own 2008-08-18 Ben Mills Benjah-bmm27 Images by Ben Mills Metformin |