L-ISOLEUCINE-N-FMOC (1-13C) is an isotopically labeled, Fmoc-protected amino acid derivative of L-isoleucine in which the amino acid nitrogen is protected with a 9H-fluoren-9-ylmethoxycarbonyl (Fmoc) group and the carbonyl-adjacent carbon is labeled with 13C. The molecule retains the free carboxylic acid functionality and bears an isoleucine side chain featuring a branched aliphatic group, while the Fmoc carbamate masks the α-amino group to control chemoselectivity during peptide assembly. As a labeled building block for solid-phase or solution-phase peptide synthesis and analytical method development, it enables incorporation of an isoleucine residue with a defined isotopic signature for mass spectrometric tracing, structural studies, and isotopically resolved characterization of peptide products.
CAT No: L-Iso-0334
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