Bis-propargyl-PEG11

• CAT Number: I016144
• CAS Number: 1351373-49-3
• Molecular Formula: C28H50O12
• Molecular Weight: 578.69
• Purity: ≥95%
• Synonyms: 3-[2-[2-[2-[2-[2-[2-[2-[2-[2-[2-(2-prop-2-ynoxyethoxy)ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]prop-1-yne
• IUPAC Name: 3-2-[2-[2-[2-[2-[2-[2-[2-[2-[2-(2-prop-2-ynoxyethoxy)ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]prop-1-yne
• InChI: InChI=1S/C28H50O12/c1-3-5-29-7-9-31-11-13-33-15-17-35-19-21-37-23-25-39-27-28-40-26-24-38-22-20-36-18-16-34-14-12-32-10-8-30-6-4-2/h1-2H,5-28H2
• InChIKey: BTLUDNMRQXMTCO-UHFFFAOYSA-N
• SMILES: C#CCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCC#C

Bis-propargyl-PEG11（Cat No.:I016144）is a long, hydrophilic bifunctional linker designed for versatile click chemistry and advanced conjugation applications. It contains two terminal propargyl groups that efficiently undergo copper-catalyzed or strain-promoted azide–alkyne cycloaddition (CuAAC or SPAAC), enabling stable and selective conjugation. The PEG11 spacer provides excellent aqueous solubility, high flexibility, and extended reach, reducing steric hindrance in complex biomolecular systems. This reagent is particularly useful for constructing multifunctional conjugates, drug delivery systems, imaging probes, and polymer–biomolecule assemblies, offering reliable performance in chemical biology, therapeutic research, and material science applications requiring long PEG linkers.