Record Information
Version1.0
Creation Date2016-07-13 19:44:57 UTC
Update Date2016-07-20 20:58:13 UTC
LmdbLMDB00218
Secondary Accession NumbersNone
Metabolite Identification
Common NameFe2+
DescriptionIron is a chemical element with the symbol Fe and atomic number 26. Iron makes up 5% of the Earth's crust and is second in abundance to aluminium among the metals and fourth in abundance among the elements. Physiologically, it. exists as an ion in the body. Iron (as Fe2+, ferrous ion) is a necessary trace element used by all known living organisms. Iron-containing enzymes, usually containing heme prosthetic groups, participate in catalysis of oxidation reactions in biology, and in transport of a number of soluble gases. Iron is an essential constituent of hemoglobin, cytochrome, and other components of respiratory enzyme systems. Its chief functions are in the transport of oxygen to tissue (hemoglobin) and in cellular oxidation mechanisms. Inorganic iron involved in redox reactions is also found in the iron-sulfur clusters of many enzymes, such as nitrogenase (involved in the synthesis of ammonia from nitrogen and hydrogen) and hydrogenase. A class of non-heme iron proteins is responsible for a wide range of functions such as ribonucleotide reductase (reduces ribose to deoxyribose; DNA biosynthesis) and purple acid phosphatase (hydrolysis of phosphate esters). When the body is fighting a bacterial infection, the body sequesters iron inside of cells (mostly stored in the storage molecule ferritin) so that it cannot be used by bacteria. Depletion of iron stores may result in iron-deficiency anemia. Iron is used to build up the blood in anemia. Humans experience iron toxicity above 20 milligrams of iron for every kilogram of weight, and 60 milligrams per kilogram is a lethal dose. Over-consumption of iron, often the result of children eating large quantities of ferrous sulfate tablets intended for adult consumption, is the most common toxicological cause of death in children under six. The DRI lists the Tolerable Upper Intake Level (UL) for adults as 45 mg/day. For children under fourteen years old the UL is 40 mg/day. Iron is a metal extracted from iron ore, and is almost never found in the free elemental state.
Structure
Thumb
Synonyms
ValueSource
FE (II) ionChEBI
Fe(II)ChEBI
Fe2+ChEBI
Fe(2+)ChEBI
Ferrous ionChEBI
Iron ion(2+)ChEBI
Iron(2+)Kegg
Armco ironHMDB
Carbonyl ironHMDB
FEHMDB
Ferrovac eHMDB
HematiteHMDB
InfedHMDB
LimoniteHMDB
LOHAHMDB
MagnetiteHMDB
Malleable ironHMDB
MetopironeHMDB
MetyraponeHMDB
PZH2mHMDB
PZHOHMDB
RemkoHMDB
Suy-b 2HMDB
TaconiteHMDB
VenoferHMDB
Wrought ironHMDB
Iron hydroxide (fe(OH)3)MeSH, HMDB
Iron oxyhydroxideMeSH, HMDB
Ferric hydroxideMeSH, HMDB
Iron hydroxide (III)MeSH, HMDB
Chemical FormulaFe
Average Molecular Weight55.845
Monoisotopic Molecular Weight55.934942133
IUPAC Namelambda2-iron(2+) ion
Traditional Namelambda2-iron(2+) ion
CAS Registry Number15438-31-0
SMILES
[Fe++]
InChI Identifier
InChI=1S/Fe/q+2
InChI KeyCWYNVVGOOAEACU-UHFFFAOYSA-N
Chemical Taxonomy
Description belongs to the class of inorganic compounds known as homogeneous transition metal compounds. These are inorganic compounds containing only metal atoms,with the largest atom being a transition metal atom.
KingdomInorganic compounds
Super ClassHomogeneous metal compounds
ClassHomogeneous transition metal compounds
Sub ClassNot Available
Direct ParentHomogeneous transition metal compounds
Alternative ParentsNot Available
Substituents
  • Homogeneous transition metal
Molecular FrameworkNot Available
External Descriptors
Ontology
StatusDetected but not Quantified
OriginNot Available
BiofunctionNot Available
ApplicationNot Available
Cellular locationsNot Available
Physical Properties
StateNot Available
Experimental Properties
PropertyValueReference
Melting PointNot AvailableNot Available
Boiling PointNot AvailableNot Available
Water SolubilityNot AvailableNot Available
LogPNot AvailableNot Available
Predicted Properties
PropertyValueSource
logP-0.77ChemAxon
pKa (Strongest Acidic)4.58ChemAxon
Physiological Charge2ChemAxon
Hydrogen Acceptor Count0ChemAxon
Hydrogen Donor Count0ChemAxon
Polar Surface Area0 ŲChemAxon
Rotatable Bond Count0ChemAxon
Refractivity0 m³·mol⁻¹ChemAxon
Polarizability1.78 ųChemAxon
Number of Rings0ChemAxon
BioavailabilityYesChemAxon
Rule of FiveYesChemAxon
Ghose FilterYesChemAxon
Veber's RuleYesChemAxon
MDDR-like RuleYesChemAxon
Spectra
Spectra
Spectrum TypeDescriptionSplash KeyView
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Positivesplash10-0a4i-9000000000-af3e7aec4f5bd9668683Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Positivesplash10-0a4i-9000000000-af3e7aec4f5bd9668683Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Positivesplash10-0a4i-9000000000-af3e7aec4f5bd9668683Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Negativesplash10-0udi-9000000000-3335fec4c3184739b75eSpectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Negativesplash10-0udi-9000000000-3335fec4c3184739b75eSpectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Negativesplash10-0udi-9000000000-3335fec4c3184739b75eSpectrum
Biological Properties
Cellular LocationsNot Available
Biofluid Locations and Tissue Locations
  • Serum
Concentrations
BiofluidStatusValueConditionSpeciesReferenceDetails
SerumDetected but not QuantifiedNot ApplicableNot AvailableBovine details
DrugBank IDNot Available
HMDB IDHMDB0015531
FooDB IDFDB030855
Phenol Explorer IDNot Available
KNApSAcK IDNot Available
BiGG ID33552
BioCyc IDFE%2b2
METLIN IDNot Available
PDB IDFE2
Wikipedia LinkIron
Chemspider ID25394
ChEBI ID29033
PubChem Compound ID27284
Kegg Compound IDC14818
YMDB IDYMDB00379
ECMDB IDECMDB00692
References
Synthesis ReferenceNot Available
Material Safety Data Sheet (MSDS)Not Available
General ReferencesNot Available