L-GLUTAMINE (2,3,3,4,4-D5, 15N2) is an isotopically labeled, proteinogenic amino acid amide in which the glutamine side chain is enriched with five deuterium atoms and the amino nitrogens are labeled with two 15N atoms, while the α-amino and α-carboxyl framework remains that of L-glutamine. The molecule contains a free α-amino group and a free carboxylic acid group, plus a terminal primary amide on the side chain that bears the 15N label, providing the same functional hydrogen-bonding motif used for glutamine-like chemical behavior in peptide and biochemical contexts. In research workflows, the labeled glutamine is employed as an isotopic tracer or internal standard for mass spectrometry-based amino acid profiling, metabolic flux and turnover studies, and for preparing labeled peptide or amino acid derivatives where incorporation of the glutamine side chain is tracked by isotopic patterning.
CAT No: L-Iso-0253
4. An Open-label, Single-center, Safety and Efficacy Study of Eyelash Polygrowth Factor Serum
5. SERS spectrum of the peptide thymosin‐β4 obtained with Ag nanorod substrate
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