Used as a stable isotope-labeled tracer in metabolic studies to track the fate of galactose in biochemical pathways. Helps in understanding galactose metabolism in cells, particularly in research related to metabolic disorders like galactosemia. Employed in NMR and mass spectrometry for precise detection and quantification of metabolic intermediates. Supports studies in glycobiology, including the synthesis of labeled oligosaccharides and glycoconjugates for structural and functional analysis.