dietary fluorine fluoride -1 18.998 18.99895 CHEBI:49593 FLUORIDE ION fluoride(1-) Fluorine anion CHEBI:14271 F(-) KRHYYFGTRYWZRS-UHFFFAOYSA-M Fluoride kegg.compound:C00742 cas:16984-48-8 [F-] fluoride CHEBI:5113 F- F InChI=1S/FH/h1H/p-1 Fluoride ion fluoride(1-) chebi_ontology Fluoride CHEBI:17051 fluoride gmelin:14905 pdb-ccd:F