N-(PEG2-Boc)-N-bis(PEG2-propargyl)

• CAT Number: I014544
• CAS Number: 2100306-69-0
• Molecular Formula: C25H43NO8
• Molecular Weight: 485.61
• Purity: ≥95%
• Synonyms: tert-butyl 3-[2-[2-[bis[2-(2-prop-2-ynoxyethoxy)ethyl]amino]ethoxy]ethoxy]propanoate
• InChI: InChI=1S/C25H43NO8/c1-6-12-28-18-21-31-15-9-26(10-16-32-22-19-29-13-7-2)11-17-33-23-20-30-14-8-24(27)34-25(3,4)5/h1-2H,8-23H2,3-5H3
• InChIKey: SNTDJGZACCWQRM-UHFFFAOYSA-N
• SMILES: CC(C)(C)OC(=O)CCOCCOCCN(CCOCCOCC#C)CCOCCOCC#C

N-(PEG2-Boc)-N-bis(PEG2-propargyl)（Cat No.:I014544）is a multifunctional PEG-based linker engineered for versatile bioconjugation strategies. It carries a Boc-protected amine for controlled deprotection and subsequent coupling, along with two propargyl groups that enable efficient click chemistry reactions with azides. The PEG2 spacers improve aqueous solubility, reduce steric hindrance, and provide flexibility for conjugation with biomolecules, peptides, or polymers. This orthogonal design supports dual functionalization and site-specific modifications, making the reagent highly useful in chemical biology, drug delivery, diagnostic probe construction, and advanced material synthesis requiring controlled and modular assembly.