Mal-PEG10-NHS ester

• CAT Number: I044572
• Molecular Formula: C31H50N2O16
• Molecular Weight: 706.73
• Purity: ≥95%
• Synonyms: (2,5-dioxopyrrolidin-1-yl) 3-[2-[2-[2-[2-[2-[2-[2-[2-[2-[2-(2,5-dioxopyrrol-1-yl)ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]propanoate
• InChI: InChI=1S/C31H50N2O16/c34-27-1-2-28(35)32(27)6-8-40-10-12-42-14-16-44-18-20-46-22-24-48-26-25-47-23-21-45-19-17-43-15-13-41-11-9-39-7-5-31(38)49-33-29(36)3-4-30(33)37/h1-2H,3-26H2
• InChIKey: XSRMTBLJFSRLGH-UHFFFAOYSA-N
• SMILES: C1CC(=O)N(C1=O)OC(=O)CCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCN2C(=O)C=CC2=O

Mal-PEG10-NHS ester（Cat No.:I044572）is a bifunctional polyethylene glycol (PEG) linker featuring a maleimide group and an N-hydroxysuccinimide (NHS) ester, separated by a PEG10 spacer. The NHS ester reacts specifically with primary amines to form stable amide bonds, while the maleimide group selectively couples with thiol groups, enabling precise and efficient bioconjugation. The PEG10 chain improves solubility, flexibility, and reduces nonspecific interactions. Mal-PEG10-NHS ester is widely used in the preparation of antibody-drug conjugates, surface functionalization, and protein labeling, offering a reliable strategy for site-specific crosslinking in chemical biology and therapeutic research.