Cat. No. Product Name CAS No.
BPG-0297 mPEG-SAS, MW 550-40k Inquiry

Synonyms: mPEG-Succinamide Succinimidyl ester; Methoxypoly(ethylene glycol)-Succinamide Succinimidyl ester; Methoxy polyethylene glycol-Succinamide Succinimidyl ester; Methoxy-PEG-Succinamide Succinimidyl ester; Methoxy-PEG-SAS; mPEG-SAS; Methoxypoly(ethylene glycol)-SAS; Methoxy polyethylene glycol-SAS

Methoxy polyethylene glycol-Succinamide Succinimidyl ester (mPEG-SAS) is a modifier with one end of the methoxy group and the other end of the succinic acid derivative. It is a white solid or viscous liquid whose form depends on its molecular weight. The smaller the molecule, the more likely it is to be a solid. It is soluble in most organic solvents and soluble in water. It acts as an MPEG -NHS ester reagent and there is a C2 aliphatic amide bond between PEG and NHS ester. In addition, SAS has a longer hydrolysis half-life and is therefore more stable in aqueous buffers than many other types of NHS esters. It is widely used in the modification of polyethylene glycol (PEG) in various biological nanomaterials.

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.