SynGen  
   A program for automatic synthesis generation which focuses on the shortest, most economical routes. Uses a generalized model of organic reactions and functionality to simplify the problem space. Macintosh beta version available for download.
   http://syngen2.chem.brandeis.edu/syngen.html

SYNCHEM  
   Program for the non-interactive (i.e. without user intervention) discovery of synthetic routes. Information and examples about its inner workings.
   http://www.cs.sunysb.edu/~synchem/

LHASA Group at Harvard University  
   LHASA (Logic and Heuristics Applied to Synthetic Analysis) is among the first programs for retrosynthetic analysis. Also on this page, the DEREK system for toxicology prediction. Available for Silicon Graphics/Irix, and Linux.
   http://lhasa.harvard.edu/

CAChe Group  
   Provides software to view and predict 3D molecular structure and properties and to analyze the relationship between structure and properties or structure and reactivity. CAChe is a tool for medicinal, polymer, process and synthetic chemists.
   http://www.cachesoftware.com/

Automatic Organic Chemical Reactions  
   A program based on a mathematical representation of organic synthesis that generates all products of a synthesis on an input of organic compounds.
   http://www.aocr.ch/index.html

TORVS Research Team  
   Software for reaction prediction, synthesis design, classification of organic reactions, chemical information, calculation of 3D coordinates, and calculation of physicochemical parameters.
   http://www2.chemie.uni-erlangen.de/software/index.html

Expereact : Electronic Laboratory Notebook  
   Laboratory management program that includes functions for stock keeping, a laboratory notebook, and search tools for products or reactions records. User guide, screen shots, and demo available.
   http://www.expereact.com

CAMEO  
   Program for the prediction of the mechanism and products of an organic reaction given the starting materials and conditions. Available for Mac, UNIX (SGI/IRIX, IBM/AIX), VAX/VMS, and an applet demo version. Also on this site, software for molecular mechan
   http://zarbi.chem.yale.edu/products/cameo/

Building the Shortest Synthesis Route  
   This article, published in CHEMTECH in 1998, is a nice introduction to the field of Computer-Assisted Organic Synthesis.
   http://pubs.acs.org/hotartcl/chemtech/98/sep/buil.html

Afferent  
   Tools for tracking the information associated with combinatorial libraries and parallel medicinal chemistry syntheses.
   http://www.mdli.com/products/afferent.html

Systematichem  
   Computational organic chemistry software for retrosynthesis and synthesis development.
   http://www.syschem.com

Organic Synthesis Exploration Tool  
   Free software for computer-assisted organic synthesis, intended mainly for use in education. Applet-based. Source code available.
   http://ivan.tubert.org/caos/

ChemNomParse Project  
   An open source project to create an IUPAC nomenclature parser.
   http://chemnomparse.sourceforge.net/

CMBI: LHASA  
   Detailed description about the inner workings of LHASA from the Centre for Molecular and Biomolecular Informatics.
   http://www.cmbi.ru.nl/cheminf/olp/