Send us a Message

Submit Data |  Help |  Video Tutorials |  News |  Publications |  Download |  REST API |  Citing RGD |  Contact   


The Chemical Entities of Biological Interest (ChEBI) ontology is downloaded weekly from EMBL-EBI at The data is made available under the Creative Commons License (CC BY 3.0, For more information see: Degtyarenko et al. (2008) ChEBI: a database and ontology for chemical entities of biological interest. Nucleic Acids Res. 36, D344–D350.

go back to main search page
Accession:CHEBI:30212 term browser browse the term
Definition:Particle of zero charge, zero rest mass, spin quantum number 1, energy hnu and momentum hnu/c (h is the Planck constant, nu the frequency of radiation and c the speed of light), carrier of electromagnetic force.
Synonyms:related_synonym: Lichtquant;   Light;   SMILES=*;   foton;   gamma;   hnu;   light quantum
 alt_id: CHEBI:10581;   CHEBI:14383
 xref: KEGG:C00205

show annotations for term's descendants           Sort by:

Term paths to the root
Path 1
Term Annotations click to browse term
  CHEBI ontology 19831
    subatomic particle 19829
      boson 0
        photon 0
paths to the root