ChemJuice lets your finger draw chemical structures. Just drag your finger to draw bonds. Tap on atoms or bonds to delete, change atom symbol or bond type. Drag a bond to expand and make a ring. Hold your finger on an atom to move it. And why not add some notes so you don’t forget why your molecule is so great? Draw more structures, write the notes and you have your own mobile database of molecules. And when you want to share your structure, just email it. ChemJuice also contains a gallery of over a hundred molecules that we think you will find fascinating and the notes will tell you why. By IDBS.