Accelrys Draw 4.1 SP1

chemical structure drawing tool for academic and home use

* Built-in structure–to–name and name–to–structure converters for IUPAC, SMILES and InChI

* Improved presentation–quality graphics

* Extensive range of no–charge extensions (add-ins)

* All–purpose drawing tool for rapidly drawing molecules

* Favorite templates for common structures

* Continued use of legacy files and sketches

* Simpler, faster drawing through user interface improvements

很有名的绘制化学结构式的免费软件。