| Number of defined terms | 515,332 |
| Number of total words (terms and definitions) | 175,439,046 |
| Number of major categories | 399 |
| Number of Compounds (Chemicals) | 341,627 |
| Number of Compound classifications | 4,825 |
| Number of Proteins | 19,391 |
| Functional terms | 173,305 |
| Pathways | 69,972 |
| Number of Biological roles | 642 |
| Biological locations | 746 |
| Industrial applications | 1,320 |
| Metabolite-protein relationships | 3,974,162 |
| Protein-pathways relationships | 886,517 |
| Metabolite-cellular location relationships | 71,190 |
| Metabolite-tissue location relationships | 13,748 |
| Metabolite-Gene ontology terms relationships | 4,148,816 |
| Metabolite-pathway relationships | 944,861 |
| Number of references supporting relationships | 1,678 |
