DL-HISTIDINE:2HCL (ALPHA-15N+) is a labeled, free amino acid salt in which histidine is present as the hydrochloride (2 HCl) form and the nitrogen is isotopically enriched at the alpha position (15N+). The molecule contains an alpha-amino group and a carboxyl group, along with the histidine side chain bearing an imidazole functionality that can act as a protonatable heteroaromatic base under appropriate conditions. As an isotopically labeled histidine hydrochloride, it is used in peptide and protein labeling workflows, NMR or mass spectrometric analytical method development, and structure-activity or binding studies that benefit from alpha-15N incorporation to track nitrogen-containing sites.
CAT No: L-Iso-0306
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