L-GLUTAMINE (13C5; 15N2) is an isotopically labeled, proteinogenic amino acid belonging to the amide-containing side-chain class, with a glutamine backbone bearing a carboxylic acid and a primary amino group as well as a side-chain primary amide. The molecule contains five 13C atoms and two 15N atoms distributed across the glutamine framework, enabling stable-isotope tracking while maintaining the native connectivity and stereochemical identity implied by the L designation. In biochemical and analytical workflows, this labeled amino acid is used as a substrate or reference for isotopic tracing, mass spectrometric quantification, and incorporation studies in peptide or protein labeling experiments where the glutamine side-chain amide functionality is required.
CAT No: L-Iso-0249
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