Boc-NH-PEG11-NH2

• CAT Number: I016074
• CAS Number: 1233234-77-9
• Molecular Formula: C29H60N2O13
• Molecular Weight: 644.79
• Purity: ≥95%
• Synonyms: tert-butyl N-[2-[2-[2-[2-[2-[2-[2-[2-[2-[2-[2-(2-aminoethoxy)ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethyl]carbamate
• IUPAC Name: tert-butyl 2-[2-[2-[2-[2-[2-[2-[2-[2-[2-[2-(2-aminoethoxy)ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethyl]carbamate
• InChI: InChI=1S/C29H60N2O13/c1-29(2,3)44-28(32)31-5-7-34-9-11-36-13-15-38-17-19-40-21-23-42-25-27-43-26-24-41-22-20-39-18-16-37-14-12-35-10-8-33-6-4-30/h4-27,30H2,1-3H3,(H,31,32)
• InChIKey: GISRSYIQHFGCMC-UHFFFAOYSA-N
• SMILES: CC(C)(C)OC(=O)NCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCN

Boc-NH-PEG11-NH2（Cat No.:I016074）is a heterobifunctional polyethylene glycol linker featuring a Boc-protected amine on one terminus and a free primary amine on the other, connected by an eleven-unit PEG chain. The Boc group offers temporary protection, removable under mild acidic conditions to unveil a second amine for sequential coupling. The terminal amine readily reacts with activated esters, carboxylic acids, or isocyanates to form stable linkages. The PEG11 spacer enhances aqueous solubility, imparts flexibility, and reduces steric hindrance, enabling efficient bioconjugation, polymer modification, and drug delivery applications across complex biological and materials environments.