nonselectively labelled
An
isotopically labelled
compound is designated as nonselectively labelled when the position(s) and the number of the
labelling
nuclide(s)
are both undefined.
Source:
Blue Book, p. 517
PAC, 1981,
53
, 1887
(Nomenclature of inorganic chemistry: II.1 - Isotopically modified compounds)
on page 1896