Carbon label

{{Use dmy dates|date=October 2023}}

{{Short description|Isotopic labeling using carbon}}

{{More citations needed|date=January 2024}}

{{About|isotopic labeling|labeling pertaining to carbon dioxide emissions|carbon emission label}}

Carbon label is a form of isotopic labeling where a carbon-12 atom is replaced with either a stable carbon-13 atom or radioactive carbon-11 or carbon-14 atoms in a chemical compound so as to 'tag' (i.e. label) that position of the compound to assist in determining the way a chemical reaction proceeds i.e. the reaction mechanism.{{cite journal |doi=10.1039/D1CC02665H |title=A general procedure for carbon isotope labeling of linear urea derivatives with carbon dioxide |date=2021 |last1=Babin |first1=Victor |last2=Sallustrau |first2=Antoine |last3=Loreau |first3=Olivier |last4=Caillé |first4=Fabien |last5=Goudet |first5=Amélie |last6=Cahuzac |first6=Héloïse |last7=Del Vecchio |first7=Antonio |last8=Taran |first8=Frédéric |last9=Audisio |first9=Davide |journal=Chemical Communications |volume=57 |issue=54 |pages=6680–6683 |pmid=34132265 |s2cid=235450623 }}