selectively labelled

https://doi.org/10.1351/goldbook.S05556
An @I03336@ compound is designated as selectively labelled when a mixture of @I03338@ compounds is formally added to the analogous @I03339@ compound in such a way that the position(s) but not necessarily the number of each @L03425@ @N04257@ is defined. A selectively labelled compound may be considered as a mixture of @S05793@ compounds.
Sources:
Blue Book, p. 515 [Terms] [Book]
PAC, 1981, 53, 1887. (Nomenclature of inorganic chemistry: II.1 - Isotopically modified compounds) on page 1893 [Terms] [Paper]
Cite as: IUPAC. Compendium of Chemical Terminology, 2nd ed. (the "Gold Book"). Compiled by A. D. McNaught and A. Wilkinson. Blackwell Scientific Publications, Oxford (1997). Online version (2019-) created by S. J. Chalk. ISBN 0-9678550-9-8. https://doi.org/10.1351/goldbook.
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Last revised: February 24, 2014