| Biological Properties |
| Chemical Reactions |
| Metabolic Pathways |
| Molecular Libraries Screening Center Network |
| NIH Substance Repository |
| Physical Properties (including SAR/QSAR databases) |
| Protein 3D Structures |
| Substance Vendors |
| Theoretical Properties |
| Toxicology/Environmental Databases |
| Publication or Magazine Article |
| Patents |
| Web-based Article (blog or commentary) |
| Available Chemicals Databases |
| Drugs or Compounds in Development |
| Ligand/binding/crystal Structure Databases |
| Natural Products |
| Spectroscopy Databases |
| Virtual Library |
| Chemical Safety Data |