Keywords: Sulfanilic-acid-zwitterion-3D-balls-A.png Ball-and-stick model of the sulfanilic acid molecule a compound containing both sulfonic acid and amine functional groups which exists primarily as a zwitterion Derived from File Pyrocatechol-3D-balls png and File Sulfamic-acid-zwitterion-3D-balls png 2010-07-27 Jynto and Ben Mills Sulfanilic acid Images by Jynto |