Fmoc-Arg(Pbf)-OH-13C6 is a protected arginine derivative bearing an Fmoc group on the α-amino functionality and a Pbf (2,2,4,6,7-pentamethyl-dihydrobenzofuran-5-sulfonyl) protecting group on the arginine guanidinium side chain, with six 13C atoms incorporated into the labeled carbon framework. The molecule contains a free carboxylic acid (-COOH) for coupling chemistry while the side chain is masked to suppress guanidinium reactivity during peptide bond formation, and the isotopic labeling provides a distinct mass signature for analytical workflows. In peptide synthesis and related labeling studies, this labeled, chemoselectively protected amino acid is used as a building block for stepwise assembly and for mass spectrometry-based tracing or quantitation of arginine-containing peptide products.
CAT No: L-Iso-0097
CAS No:154445-77-9
Synonyms/Alias:L-ARGININE-N-FMOC, PBF-OH (13C6) (CONTAINS SOLVENT);
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