This page collects together resources that cost money. Please also see Category:Free. In practice, the distinction between Free and Commercial is often more nuanced. For instance, some things are only free to academics, or via a collaborative agreement. Read the fine print.

Cheminformatics Software

• Molecular Networks
• Molinspiration
• Schrodinger
• Pipeline Pilot
• BioSolveIT
• Daylight

Database Vendors

• MDL
• Beilstein
• Chapman and Hall Natural Products database