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Record Information
Creation Date2014-10-15 22:07:58 UTC
Update Date2014-12-24 20:27:02 UTC
Accession NumberT3D4997
Common NameCarbon-14
ClassSmall Molecule
DescriptionCarbon-14, 14C, or radiocarbon, is a radioactive isotope of carbon with a nucleus containing 6 protons and 8 neutrons. Its presence in organic materials is the basis of the radiocarbon dating method pioneered by Willard Libby and colleagues (1949) to date archaeological, geological and hydrogeological samples. Carbon-14 was discovered on 27 February 1940, by Martin Kamen and Sam Ruben at the University of California Radiation Laboratory in Berkeley, although its existence had been suggested by Franz Kurie in 1934.
Compound Type
  • Industrial/Workplace Toxin
  • Natural Compound
  • Organic Compound
  • Radioactive
Chemical Structure
SynonymsNot Available
Chemical FormulaCH4
Average Molecular Mass18.035 g/mol
Monoisotopic Mass18.035 g/mol
CAS Registry Number14762-75-5
IUPAC Name(¹⁴C)methane
Traditional Name(¹⁴C)methane
InChI IdentifierInChI=1S/CH4/h1H4/i1+2
Chemical Taxonomy
Description belongs to the class of organic compounds known as alkanes. These are acyclic branched or unbranched hydrocarbons having the general formula CnH2n+2 , and therefore consisting entirely of hydrogen atoms and saturated carbon atoms.
KingdomOrganic compounds
Super ClassHydrocarbons
ClassSaturated hydrocarbons
Sub ClassAlkanes
Direct ParentAlkanes
Alternative ParentsNot Available
  • Acyclic alkane
  • Alkane
  • Aliphatic acyclic compound
Molecular FrameworkAliphatic acyclic compounds
External DescriptorsNot Available
Biological Properties
StatusDetected and Not Quantified
Cellular Locations
  • Cell surface
  • Cytosol
  • Extracellular
  • Membrane Fraction
  • Microsome
  • Mitochondrion
  • Peroxisome
  • Plasma Membrane
  • Soluble Fraction
Biofluid LocationsNot Available
Tissue LocationsNot Available
Carbon MetabolismNot AvailableNot Available
Metabolic PathwaysNot AvailableNot Available
Nitrogen MetabolismNot AvailableNot Available
Fatty acid elongationNot Availablemap00062
Pentose Phosphate PathwaySMP00031 map00030
Lysine biosynthesisNot Availablemap00300
Galactose MetabolismSMP00043 map00052
Fatty acid MetabolismSMP00051 map00071
EndocytosisNot Availablemap04144
Biosynthesis Of Amino AcidsNot AvailableNot Available
Two Component SystemNot AvailableNot Available
Toluene DegradationNot AvailableNot Available
Pyruvate MetabolismSMP00060 map00620
Phenylpropanoid BiosynthesisNot AvailableNot Available
Insulin secretionNot Availablemap04911
Influenza aNot Availablemap05164
Fatty Acid BiosynthesisSMP00456 map00061
Degradation Of Aromatic CompoundsNot AvailableNot Available
Benzoate DegradationNot AvailableNot Available
ApplicationsNot Available
Biological RolesNot Available
Chemical RolesNot Available
Physical Properties
AppearanceNot Available
Experimental Properties
Melting PointNot Available
Boiling PointNot Available
SolubilityNot Available
LogPNot Available
Predicted Properties
Water Solubility0 g/LALOGPS
Physiological Charge0ChemAxon
Hydrogen Acceptor Count0ChemAxon
Hydrogen Donor Count0ChemAxon
Polar Surface Area0 ŲChemAxon
Rotatable Bond Count0ChemAxon
Refractivity6.35 m³·mol⁻¹ChemAxon
Polarizability2.59 ųChemAxon
Number of Rings0ChemAxon
Rule of FiveYesChemAxon
Ghose FilterYesChemAxon
Veber's RuleYesChemAxon
MDDR-like RuleYesChemAxon
Spectrum TypeDescriptionSplash KeyView
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Positivesplash10-014i-9000000000-9d8342b86bcfe423c16eJSpectraViewer
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Positivesplash10-014i-9000000000-9d8342b86bcfe423c16eJSpectraViewer
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Positivesplash10-014i-9000000000-9d8342b86bcfe423c16eJSpectraViewer
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Negativesplash10-014i-9000000000-c888af3d1348fef91ee6JSpectraViewer
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Negativesplash10-014i-9000000000-c888af3d1348fef91ee6JSpectraViewer
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Negativesplash10-014i-9000000000-c888af3d1348fef91ee6JSpectraViewer
Toxicity Profile
Route of ExposureIngestion, inhalation, puncture, wound, skin contamination (absorption)
Mechanism of ToxicityNot Available
MetabolismNot Available
Toxicity ValuesNot Available
Lethal DoseNot Available
Carcinogenicity (IARC Classification)Internalized radionuclides that emit β particles are carcinogenic to humans (Group 1) (1). Carbon-14 undergoes beta decay.
Uses/SourcesNot Available
Minimum Risk LevelNot Available
Health EffectsNot Available
SymptomsNot Available
TreatmentNot Available
Normal Concentrations
Not Available
Abnormal Concentrations
Not Available
DrugBank IDNot Available
HMDB IDNot Available
PubChem Compound ID26873
ChEMBL IDNot Available
ChemSpider ID25031
KEGG IDNot Available
UniProt IDNot Available
ChEBI IDNot Available
BioCyc IDNot Available
CTD IDNot Available
Stitch IDNot Available
PDB IDNot Available
ACToR IDNot Available
Wikipedia LinkNot Available
Synthesis ReferenceNot Available
MSDSNot Available
General References
  1. International Agency for Research on Cancer. 2012. Radiation: A Review of Human Carcinogens. IARC monograph, volume 100D. [Link]
Gene Regulation
Up-Regulated GenesNot Available
Down-Regulated GenesNot Available


1. DNA
General Function:
Used for biological information storage.
Specific Function:
DNA contains the instructions needed for an organism to develop, survive and reproduce.
Molecular Weight:
2.15 x 1012 Da