Keywords: Papaverine-from-xtal-3D-balls-B.png Ball-and-stick model of the papaverine molecule C<sub>20</sub>H<sub>21</sub>NO<sub>4</sub> X-ray crystallographic data from Z Kristallogr 1996 211 649-650 Own 2009-04-20 Monday 20 April 2009 Ben Mills Benjah-bmm27 Images by Ben Mills Papaverine |