dietary fluorine halide anion fluoride fluoride CHEBI:49593 FLUORIDE ION 18.99840 fluoride(1-) Gmelin:14905 Fluorine anion InChI=1S/FH/h1H/p-1 CHEBI:14271 F(-) [F-] F CHEBI:5113 KEGG:C00742 F- Fluoride ion PDBeChem:F KRHYYFGTRYWZRS-UHFFFAOYSA-M CAS:16984-48-8 chebi_ontology Fluoride CHEBI:17051 fluoride -1 18.99895 hydrogen fluoride monoatomic fluorine