ISIS Draw is an intelligent drawing program for Windows that allows you to work with the fundamentals of chemistry such as valence limits, bond angles and aromatic ring systems. It gives you the ability to create graphics, which can be inserted into documents or used to build and search databases of 2D and 3D molecules, polymers and reactions.

Create and publish graphics

With this utility, you can graphically represent almost any kind of chemical or polymer composition for use in reports, publications and presentations. You are able to draw complicated DNA and RNA structures as well as amino sequences using special shortcuts. Moreover, you have the option to control the display by scaling atom labels, bonds and other chemical attributes proportionally to make schemes easier to read.

Templates and flexible drawing tools

Additionally, you have the ability to pierce together readymade templates of commonly used structures. It is necessary to note that you can create your own designs to reuse later. The flexible drawing tools enable you to set up multiple groups, automatically scale brackets, easily identify and manipulate particular atoms and bonds, as well as clean structures. If you want to conduct various PCR experiments, you may use specialized software such as StepOne.

Features

free to download and use;
compatible with modern Windows versions;
gives you the ability to create chemical graphics;
it is possible to manipulate specific atoms and bonds;
provides a wide range of preset templates.