L-CITRULLINE (UREIDO-13C) is an isotopically labeled, non-essential amino acid featuring a ureido side chain derived from the amino acid citrulline, with the label specifically placed at the ureido carbon. The molecule contains a free α-amino group and a free α-carboxyl group along with a ureido functional group that bears the 13C label, and the stereochemistry corresponds to the L-citrulline form indicated by the product name. In biochemical and analytical workflows, the ureido-13C enrichment enables isotopic tracing and NMR or MS-based quantification of citrulline-related transformations and incorporation into labeled amino acid or peptide derivatives for chemical biology and metabolite profiling.
CAT No: L-Iso-0167
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