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Medchemexpress LLC Methoxypolyethylene glycol maleimide | 724722-89-8 | 3,400 Da (average) | 25 MG

Supplier: Medchemexpress LLC 25MGHYW020780C
Methoxypolyethylene glycol maleimide (average MW 3,400 Da) is a methoxy-terminated polyethylene glycol functionalized with a maleimide group for selective thiol conjugation. It is used for thiol-specific PEGylation of proteins and peptides in bioconjugation and drug delivery research. Because the maleimide can hydrolyze in aqueous media, reaction conditions should be optimized to preserve reactivity.
- Selective thiol-reactive maleimide for site-specific conjugation.
- Average molecular weight 3,400 Da for moderate steric shielding.
- Methoxy-terminated monofunctional PEG prevents crosslinking.
- Improves solubility and circulation time of conjugated biomolecules.
- Compatible with standard bioconjugation buffers; optimize pH to limit hydrolysis.
- Supplied as a solid for convenient storage and handling.
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