MoleculeSketch – simple and easy to use program for drawing chemical formulas and reactions.

features:

• Add the atoms and connection, beautifully enclosed in blocks (can be disabled)
• Choose different styles of double bonds
• to Add a stereo connection
• Show the missing hydrogen atoms depending on the availability of valency
• to Change the background color of the drawing area
• Copy/paste/cut molecules and drawings
• Insert drawings into other applications in a PDF drawing
• to Use the trackpad gestures for scaling and rotation
• Access to the elements of drawing toolbar
• Add reaction arrow and the text fields
• Calculate the average mass and the formula of the molecule
• And more…