iron atom 26Fe 55.84500 55.935 An iron group element atom that has atomic number 26. CAS:7439-89-6 CHEBI:13322 CHEBI:18248 CHEBI:24872 CHEBI:5974 DrugBank:DB01592 Eisen Fe Fe HMDB:HMDB0015531 InChI=1S/Fe Iron KEGG:C00023 Reaxys:4122945 WebElements:Fe XEEYBQQBJWHFJM-UHFFFAOYSA-N [Fe] chebi_ontology fer ferrum hierro iron iron iron group element atom