OBO ID: CHEBI:139542

Term Name:	(14)C-modified compound		Search Ontology:
Synonyms:	(14)C-enriched compound (14)C-enriched compounds (14)C-labeled compound (14)C-labeled compounds (14)C-labelled compound (14)C-labelled compounds (14)C-modified compounds
Definition:	An isotopically modified compound in which the abundance of a (14)C isotope at one or more positions has been increased above that of the naturally occurring level (1 - 1.5 atoms for every 10(12) atoms of the carbon in the atmosphere). With a half-life of 5,700 years, (14)C is the longest-lived radioisotope of carbon.
References:
Ontology:	ChEBI  ( EBI )