| Name | Metaprefix | URI |
|---|---|---|
| Enzyme Commission Code | eccode |
https://www.ebi.ac.uk/intenz/query?cmd=SearchEC&ec=2 |
| Bioregistry | bioregistry |
https://bioregistry.io/eccode:2 |
| Identifiers.org | miriam |
https://identifiers.org/ec-code:2 |
| Name-to-Thing | n2t |
https://n2t.net/ec-code:2 |