providers: bio2rdf: http://bio2rdf.org/kegg.compound:C12345 bioregistry: https://bioregistry.io/kegg.compound:C12345 default: https://www.kegg.jp/entry/C12345 miriam: https://identifiers.org/kegg.compound:C12345 n2t: https://n2t.net/kegg.compound:C12345 query: identifier: C12345 prefix: kegg.compound