nonselectively labelled

https://doi.org/10.1351/goldbook.N04202
An isotopically labelled compound is designated as nonselectively labelled when the position(s) and the number of the labelling nuclide(s) are both undefined.
Sources:
Blue Book, p. 517 [Terms] [Book]
PAC, 1981, 53, 1887. (Nomenclature of inorganic chemistry: II.1 - Isotopically modified compounds) on page 1896 [Terms] [Paper]
Citation: 'nonselectively labelled' in IUPAC Compendium of Chemical Terminology, 5th ed. International Union of Pure and Applied Chemistry; 2025. Online version 5.0.0, 2025. https://doi.org/10.1351/goldbook.N04202 RIS BibTex EndNote
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