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Isotopically Modified Compounds

R-8.1.4 Isotopically modified compounds

An isotopically modified compound has a macroscopic composition such that the isotopic ratio of nuclides for at least one element deviates measurably from that occurring in nature. Isotopically modified compounds may be classified as isotopically substituted (R-8.2) or as isotopically labelled (R-8.3). Isotopically labelled compounds may be further classified as specifically labelled (R-8.3.1), selectively labelled(R-8.3.2), nonselectively labelled(R-8.3.3), or isotopically deficient (R-8.3.4).

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This HTML reproduction is as close as possible to the published version [see IUPAC, Commission on Nomenclature of Organic Chemistry. A Guide to IUPAC Nomenclature of Organic Compounds (Recommendations 1993), 1993, Blackwell Scientific publications, Copyright 1993 IUPAC]. If you need to cite these rules please quote this reference as their source.

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