DL-PHENYLALANINE (RING-13C6) is a phenylalanine derivative in which the six carbon atoms of the aromatic ring are isotopically labeled with 13C, and the compound is provided as a DL (racemic) mixture. The molecule contains a primary amino group and a carboxyl functional group, with a benzyl side chain bearing the 13C6-labeled phenyl ring, and it is not described as being protected or esterified. As an isotopically labeled amino acid, it is used in isotopic tracing, NMR or MS-based analytical method development, and peptide or protein labeling workflows where incorporation of a phenylalanine residue with a defined ring-label is required.
CAT No: L-Iso-0497
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