Carbon label

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This article is about isotopic labeling. For labeling pertaining to carbon dioxide emissions, see carbon emission label.

Carbon label is a form of isotopic labeling where a carbon-12 atom has been replaced with either a carbon-13 atom or a carbon-14 atom 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.

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