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Medchemexpress LLC Methyl-PEG4-NHS ester | 622405-78-1 | MFCD11041112 | 95.0% | 333.33 g/mol | C14H23NO8 | 500MG

Supplier: Medchemexpress LLC HY124323500MG
m-PEG4-NHS ester is a methoxy-terminated polyethylene glycol (PEG4) linker bearing an N-hydroxysuccinimide (NHS) ester that enables efficient conjugation to primary amines. It is used as a spacer in bifunctional molecules and for labeling proteins or small molecules in synthesis workflows, offering improved solubility and flexible spacing.
- Reactive NHS ester for rapid coupling to primary amines.
- Methoxy-terminated PEG4 spacer to increase solubility and reduce aggregation.
- Approximately 333.33 g/mol molecular weight for predictable stoichiometry.
- High purity suitable for synthetic and bioconjugation applications.
- Available in multiple laboratory-scale quantities for flexible workflow planning.
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