L-GLUTAMINE (5-13C) is an isotopically labeled form of the proteinogenic amino acid glutamine, featuring the standard amino acid backbone with a side chain terminating in an amide functionality and a carboxyl group. The molecule bears an α-amino group and an α-carboxyl group, and the "(5-13C)" designation indicates that the carbon at the side-chain position corresponding to C5 is enriched with 13C, enabling carbon-specific tracing while retaining the glutamine connectivity and stereochemical identity implied by the L designation. As an isotopically labeled free amino acid, it is used in isotopic labeling and analytical method development for studies that require glutamine-derived carbon incorporation patterns, including mass spectrometry or NMR-based tracking of labeled metabolites and incorporation into synthetic or biochemical intermediates.
CAT No: L-Iso-0257
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