DL-PHENYLALANINE (RING-D5) is a deuterium-labeled amino acid derivative belonging to the phenylalanine class, featuring a benzyl side chain attached to the α-amino acid framework with five deuterium atoms incorporated specifically on the aromatic ring. The molecule contains a free primary amino group and a free carboxyl group, and the "DL" designation indicates a racemic mixture at the α-carbon, while the aromatic ring labeling provides an isotopic handle for mass-based detection and tracking. In research and analytical workflows, this labeled phenylalanine is used as an isotopic tracer for studies of amino acid incorporation, peptide and protein labeling experiments, and quantitative LC-MS or MS-based method development where isotopic substitution improves signal discrimination.
CAT No: L-Iso-0500
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