This page collects together resources that almost always cost money. Please also see Category:Free for resources that are generally free and Category:Freecom for resources that used a mixed commercial/free model. In practice, the distinction between Free and Commercial is often more nuanced. Read the fine print.
- Molecular Networks
- Molinspiration - the website is free to use! and so are various flavors of the JME!
- Pipeline Pilot
- Chapman and Hall Natural Products database
- CCDC's CSD