Azido-PEG6-C2-Boc（Cat No.:I015816）is a heterobifunctional PEG-based linker designed for controlled bioconjugation and modular synthesis. It features a terminal azide group for copper-catalyzed or strain-promoted click chemistry with alkynes, and a Boc-protected amine connected via a C2 linker that can be selectively deprotected for further conjugation. The PEG6 spacer imparts hydrophilicity, flexibility, and reduced steric hindrance, ensuring solubility and efficient reactivity in aqueous and organic media. This reagent is widely used in chemical biology, proteomics, biomaterials, and drug discovery, enabling orthogonal strategies for precise and multifunctional molecular engineering.