Chemical drawing content with Marvin JS

Some content in the Item Library provides a set of chemical drawing tools similar to the Marvin JS 2D molecular drawing tools shown below.

"Marvin canvas with toolbars on perimeter: Tools (left), General (top), Atoms (right), and Templates (bottom)"

The Marvin JS chemical drawing tools (2D, 3D, and Mechanism) are based on Marvin JS, an advanced chemical editor from ChemAxon, Ltd that is used in pharmaceutical and other industries.