N-bis(Azido-PEG10)-N-(PEG10-NH-Boc)

N-bis(Azido-PEG10)-N-(PEG10-NH-Boc) is a multifunctional PEG-based azide click chemistry reagent designed for bioorthogonal conjugation workflows. As an azide-bearing intermediate, it supports copper-free or copper-catalyzed azide–alkyne cycloaddition strategies to install PEGylated handles onto biomolecules, surfaces, and polymeric constructs. The reagent’s dual azide functionality and orthogonally protected amine (Boc) enable downstream modular assembly of PEG-rich architectures commonly used to improve solubility, spacing, and conjugation control in chemical biology and materials research.

1. Dual-Handle PEG Conjugation

N-bis(Azido-PEG10)-N-(PEG10-NH-Boc) is used to introduce PEG10 spacers and azide reactive sites onto proteins, peptides, and nucleic-acid scaffolds when multivalent or stepwise labeling is required. Researchers commonly employ the reagent to create conjugates with controlled inter-functional distances, supporting robust attachment of multiple ligands, probes, or imaging handles via subsequent click reactions. The Boc-protected amine provides an additional functional handle for orthogonal derivatization after deprotection, enabling workflows that separate PEG installation from later coupling steps.

2. Surface Patterning And Coatings

N-bis(Azido-PEG10)-N-(PEG10-NH-Boc) is applied in materials and biomaterials development to functionalize surfaces with azide groups for spatially controlled attachment of biomolecular layers. In surface engineering workflows, the reagent is incorporated to generate PEG-rich, antifouling-friendly interfaces that can be patterned with alkyne-bearing capture agents, enabling fabrication of microarrays, biosensor surfaces, and functional coatings. The combination of PEG spacing and click-ready azides supports reproducible grafting densities and improves accessibility of immobilized ligands for downstream assay development.

3. Molecular Imaging Probe Assembly

N-bis(Azido-PEG10)-N-(PEG10-NH-Boc) is widely used as a PEGylated azide linker for constructing imaging and detection reagents that require improved solubility and reduced nonspecific interactions. Probe developers incorporate the reagent as a modular intermediate to attach imaging moieties, affinity tags, or reporter groups through azide–alkyne cycloaddition, often enabling systematic tuning of linker length and multivalency. The orthogonal Boc functionality supports additional derivatization steps when probe architectures need sequential assembly rather than one-step labeling.

4. Diagnostic Reagent Functionalization

N-bis(Azido-PEG10)-N-(PEG10-NH-Boc) supports the preparation of diagnostic and analytical reagent components that rely on stable, covalent coupling of recognition elements to reporting platforms. In reagent development pipelines, the azide groups serve as standardized click handles for attaching alkyne-functional reporters, enabling consistent conjugation strategies across different assay formats such as labeling reagents and capture probes. PEG10 spacing introduced by the reagent helps maintain accessibility of binding partners and can reduce steric hindrance in assembled reagent systems.