High-resolution 2D (13)C-(13)C NMR correlation spectra of uniformly (13)C-labeled molecules in solution are obtained by homonuclear (13)C-decoupling along both dimensions by the application of indirect covariance NMR to constant-time NMR spectra. The spectra are optimally suited for chemical structure elucidation and molecular identification of the components of complex mixtures, such as ones from uniformly (13)C-labeled cell cultures.
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