ChemPen 1.4

ChemPen is the low cost, easy to use tool for chemists, educators and students who need to create create drawings for chemical documentation. ChemPen includes everything in ChemPen plus basic C-13 chemical shift prediction. Drawing with ChemPen is done with menus, mouse clicks and simple editors. Drawings can be pasted into Windows® graphics applications. ChemPen calculates molecular weight, molecular formula and elemental composition. Watch the animation below or click the drawing to see how easy it was created with ChemPen.