Boc-[15N]Gly-OH

Boc-[15N]Gly-OH is a Boc-protected glycine derivative bearing a stable 15N isotope at the amino nitrogen, provided as a protected amino acid building block for peptide and labeled-material synthesis. The Boc group supports controlled incorporation during protected-amino-acid workflows, while the 15N label enables nitrogen-specific mass shifts for LC-MS and MS/MS-based quantification or tracking in peptide-related studies. This combination makes the reagent particularly useful where isotopically defined peptide fragments or standards are required.

1. Isotopically Labeled Peptide Synthesis

Boc-[15N]Gly-OH is used by peptide synthesis groups to introduce a defined 15N label at glycine positions within short peptides, peptide libraries, and fragment building blocks. Because the label resides on the glycine nitrogen, downstream peptide products carry an unambiguous nitrogen mass signature that is valuable for targeted MS workflows, including quantitation of specific sequences and verification of synthetic incorporation. Researchers commonly select this protected, labeled glycine when they need a consistent isotopic marker rather than relying on unlabeled glycine that would otherwise complicate assignment of nitrogen-containing fragments.

2. Quantitative LC-MS Internal Standards

Boc-[15N]Gly-OH supports analytical method development and quantitative workflows by enabling preparation of 15N-containing peptide standards or labeled reference fragments. Analytical chemistry and proteomics teams use these labeled materials to improve confidence in peak identification and to normalize signal variation in LC-MS/MS experiments that monitor peptide-level readouts. The Boc-protected form is particularly practical for constructing defined labeled peptide motifs that match the target analytes' fragmentation behavior, supporting robust calibration and internal standard strategies.

3. Stable-Isotope Tracer Building Blocks

Boc-[15N]Gly-OH is applied as a stable isotope tracer precursor for experiments that require nitrogen-specific labeling in glycine-containing peptide contexts. Chemical biology and metabolic research laboratories often incorporate labeled amino acid building blocks into peptide substrates, biomimetic constructs, or labeled reference materials to follow incorporation patterns or to distinguish labeled species from background in mass-based readouts. The 15N enrichment at the amino nitrogen provides a clear isotopic discriminator for nitrogen-containing fragments, which is especially useful when the experimental design depends on distinguishing labeled versus unlabeled nitrogen atoms.

4. Pharmaceutical Intermediate and Reference Materials

Boc-[15N]Gly-OH is also used in the preparation of isotopically defined intermediates and labeled reference materials for downstream development programs that require nitrogen-labeled building blocks. Process development and analytical support teams may use the protected, labeled glycine to generate defined, traceable components used in characterization studies, method validation, or material qualification where isotopic identity must be preserved. This application is driven by the reagent's protected amino functionality and the stable 15N label, which together support precise construction of labeled nitrogen-containing motifs used as reference inputs in development workflows.

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