L-GLUTAMINE (3,4-13C2) is an isotopically labeled, proteinogenic amino acid derivative classified as the amide-bearing side-chain form of glutamine, featuring an α-amino group and a α-carboxyl group on the backbone. The side chain contains a terminal carboxamide functionality, and the molecule bears two 13C isotopic labels at the 3 and 4 positions of the carbon skeleton while retaining the L stereochemical designation indicated by the product name. As an isotopically enriched substrate for biochemical and analytical workflows, it is used for 13C NMR or mass spectrometry-based tracing and quantitation in amino acid metabolism studies, protein/peptide labeling experiments, and method development for isotope-resolved detection.
CAT No: L-Iso-0255
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