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A uniformly-labeled radioconjugate composed of the monosaccharide fructose in which all six carbons are labeled with the isotope carbon C 13 (13C), with potential imaging application. Upon administration of uniformly-labeled [13C]fructose, fructose is taken up and metabolized by tumors and the 13C-containing metabolites can be imaged by 13C nuclear magnetic resonance (NMR) spectroscopy. As certain tumor cells preferentially take up and metabolize fructose for fuel, this agent may help assess the extent of fructose metabolism in tumor cells.
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