1.0 2010-04-08 22:07:38 UTC 2025-11-18 23:04:55 UTC FDB007486 FR Fr, also known as 87fr or francio, is a member of the class of compounds known as homogeneous alkali metal compounds. Homogeneous alkali metal compounds are inorganic compounds containing only metal atoms,with the largest atom being a alkali metal atom. Fr can be found in broad bean, which makes fr a potential biomarker for the consumption of this food product. FR or fr may refer to: . Fr 223.0 223.0 francium francium 7440-73-5 [Fr] InChI=1S/Fr KLMCZVJOEAUDNE-UHFFFAOYSA-N belongs to the class of inorganic compounds known as homogeneous alkali metal compounds. These are inorganic compounds containing only metal atoms,with the largest atom being a alkali metal atom. Homogeneous alkali metal compounds Inorganic compounds Homogeneous metal compounds Homogeneous alkali metal compounds Homogeneous alkali metal alkali metal atom logp 0 ChemAxon iupac francium ChemAxon average_mass 223.0 ChemAxon mono_mass 223.0 ChemAxon smiles [Fr] ChemAxon formula Fr ChemAxon inchi InChI=1S/Fr ChemAxon inchikey KLMCZVJOEAUDNE-UHFFFAOYSA-N ChemAxon polar_surface_area 0 ChemAxon refractivity 0 ChemAxon polarizability 1.78 ChemAxon rotatable_bond_count 0 ChemAxon acceptor_count 0 ChemAxon donor_count 0 ChemAxon physiological_charge 0 ChemAxon formal_charge 0 ChemAxon Specdb::MsMs 44523 Specdb::MsMs 44524 Specdb::MsMs 44525 Specdb::MsMs 125370 Specdb::MsMs 125371 Specdb::MsMs 125372 33323 Broad bean Type 1 specific Vicia faba 3906