L-ARGININE:HCL (D7; 15N4) is a deuterium- and nitrogen-15 isotopically labeled form of the amino acid arginine, supplied as its hydrochloride salt, featuring the canonical α-amino and α-carboxyl groups alongside a guanidinium-containing side chain. The guanidinium functionality bears the characteristic strongly basic, resonance-stabilized charge distribution, while the isotopic labels (D7 and 15N4) are incorporated into the molecular framework to enable mass-dependent tracking without altering the overall arginine connectivity and stereochemical identity implied by the L designation. As an isotopically labeled amino acid salt, it is used in peptide and protein labeling workflows, isotopic tracing, and analytical method development where controlled incorporation or detection of arginine-derived fragments by mass spectrometry or related techniques is required.
CAT No: L-Iso-0093
1. Urinary Metabolites Associated with Blood Pressure on a Low-or High-Sodium Die
2. SERS spectrum of the peptide thymosin‐β4 obtained with Ag nanorod substrate
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