L-ORNITHINE:HCL (4,4,5,5-D4) is a deuterium-labeled, free amino acid derivative in the ornithine family, featuring a primary amino group on the side chain and a carboxylic acid group, with four deuterium atoms incorporated at the 4 and 5 positions of the carbon framework. As the hydrochloride salt, the molecule contains an amino group present as a protonated species paired with chloride, and the deuterium labeling is used to shift isotopic composition without changing the underlying amino acid connectivity or functional group types. In research and analytical workflows, this isotopically labeled ornithine hydrochloride is employed for isotopic tracing, mass spectrometry-based quantification, and preparation of labeled amino acid standards and related peptide or conjugate intermediates where incorporation of the deuterium label is required.
CAT No: L-Iso-0465
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