Cat. No. Product Name CAS No.
BPG-0534 MAL-PEG-MAL, MW 600-20k Inquiry

Synonyms: Maleimide-PEG-Maleimide; MAL-polyethylene glycol-MAL; Maleimide-polyethylene glycol-Maleimide

MAL-PEG-MAL is a linear molecule containing maleimide groups at both ends of the molecule, which is a PEG derivative. At pH 6.5~7.5, the maleimide groups can selectively react with thiol by means of Michael addition to form stable C-S bonds. In this way, MAL-PEG-MAL can be used to modify proteins, peptides, or other surfaces containing sulfhydryl groups. It can also be used to cross-link site-specific proteins and peptides. Also, by reacting with drugs, it changes the dispersity and solubility of drug molecules in aqueous solutions. MAL-PEG-MAL is stored with about 200 PPM of hydroquinone as an inhibitor.

Why BOC Sciences?

  • Large Stock

    More than 2000+ products in inventory

  • Global Delivery

    Warehouses in multiple cities to ensure fast delivery

  • mg to kg

    Multi specification for academic research and industrial production

  • 24/7 Technical Support

    Strict process parameter control to ensure product quality



Our Feature

BOC Sciences supplies a unique variety of PEG derivatives and functional PEG polymers. Our products offer the most diverse collection of reactivity, ready-to-use functionality, and molecular weight options that you will not find anywhere else.

  • Our Feature icon1
  • Our Feature icon2
  • Our Feature icon3
  • Our Feature icon4
PEGylation of Peptides and Proteins

PEGylation of Peptides
and Proteins

Reduce the Immunogenicity of Peptide/Protein Drugs

Learn More



PEG linkers For Drug

Improved Circulation Half-Life

Learn More

Have Customer Reviewed On Us?


Chat With Us

Online Inquiry

Verification code

Copyright © 2024 BOC Sciences. All rights reserved.