SUNBRIGHT ME-200GS
Methoxy-PEG-CO(CH2)3COO-NHS, Mw 20,000
Chemical Name: α-Succinimidyloxyglutaryl-ω-methoxy, polyoxyethylene
CAS#: 111575-54-3
SUNBRIGHT ME-200GS is a methoxy PEG NHS ester with a 20,000 Da PEG chain. The NHS group is linked to the PEG chain via a glutaric acid linker, and it readily reacts with amine-containing molecules to form a stable amide bond. After PEGylation, the GS type is relatively susceptible to hydrolysis because it contains an ester linkage, enabling the control of hydrolysis rate depending on the target applications.