L-ORNITHINE:HCL (13C5; 15N2) is an isotopically labeled, free amino acid salt consisting of L-ornithine combined with hydrochloride, where five carbon atoms and two nitrogen atoms are enriched with 13C and 15N, respectively. The molecule contains an amino acid backbone bearing a primary amino group on the side chain (a basic, polyamine-like functionality), along with an α-amino group and a carboxyl group, with the hydrochloride counterion associated to support the salt form of the amine. As a labeled ornithine analogue, it is used in isotopic tracing, mass spectrometry-based analytical method development, and quantitative studies that track amino acid incorporation, transamination-related transformations, or nitrogen/carbon flux in chemical biology and peptide/protein-related research contexts.
CAT No: L-Iso-0457
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