Preferred Label : selectively labelled;
IUPAC definition : An isotopically labelled compound is designated as selectively labelled when a mixture
of isotopically substituted compounds is formally added to the analogous isotopically
unmodified compound in such a way that the position(s) but not necessarily the number
of each labelling i nuclide /i is defined. A selectively labelled compound may be
considered as a mixture of specifically labelled compounds.;
Origin ID : S05556;
See also
An isotopically labelled compound is designated as selectively labelled when a mixture
of isotopically substituted compounds is formally added to the analogous isotopically
unmodified compound in such a way that the position(s) but not necessarily the number
of each labelling i nuclide /i is defined. A selectively labelled compound may be
considered as a mixture of specifically labelled compounds.