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Medchemexpress LLC Methyl-PEG4 N-hydroxysuccinimide ester | 622405-78-1 | MFCD11041112 | 95.0% | 333.33 | C14H23NO8 | 1G
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Supplier:  Medchemexpress LLC HY1243231G

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M-PEG4-NHS ester is a methyl-terminated polyethylene glycol (PEG) linker bearing an N-hydroxysuccinimide (NHS) ester. It is intended for bioconjugation and medicinal chemistry applications, including PROTAC synthesis and amine labeling, where an amine-reactive spacer that improves solubility and enables stable amide bond formation is required.

  • Provides an NHS ester for efficient coupling to primary amines.
  • Methyl-terminated PEG4 spacer improves solubility and reduces steric hindrance.
  • Molecular weight 333.33 and formula C14H23NO8.
  • Typical purity 95.0% suitable for synthetic applications.
  • Available in multiple pack sizes, including 1 g.

Catalog No. 50-002-35400


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