[UL-13C12]Lactulose (CAS 4618-18-2 (unlabeled))

[UL-13C12]Lactulose is a compound extensively used in research applications involving metabolic and digestive studies. It is uniformly labeled with carbon-13 isotopes, making it an ideal tracer for studying carbohydrate metabolism and absorption. In research focused on the colonic microbiota, [UL-13C12]Lactulose provides insights into the fermentation processes by serving as a substrate for bacteria, allowing for the monitoring of metabolic flux through the production of labeled metabolites. It is also employed in tests to assess intestinal bacterial overgrowth and to measure the orocecal transit time. The use of [UL-13C12]Lactulose in analytical chemistry enables the development of sensitive and specific detection methods for studying carbohydrate metabolism using mass spectrometry, owing to the distinct mass shift imparted by the carbon-13 label. This compound aids in the quantification of lactulose in biological samples and provides a deeper understanding of its role in modulating the gut microbiome.