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Medchemexpress LLC Propargyl-PEG4-NHS ester | 1428629-70-2 | MFCD22380743 | 97.0% | 357.36 g/mol | C16H23NO8 | 250 MG
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Supplier:  Medchemexpress LLC HY126516250MG

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Propargyl-PEG4-NHS ester is a noncleavable four-unit polyethylene glycol (PEG) linker bearing a propargyl (alkyne) group and an N-hydroxysuccinimide (NHS) ester. It is used as a click chemistry reagent to couple azide-containing molecules via copper-catalyzed azide-alkyne cycloaddition (CuAAC), and as a PEG-based linker in antibody-drug conjugate synthesis and other bioconjugation applications.

  • Noncleavable four-unit PEG linker provides a hydrophilic spacer.
  • Terminal propargyl (alkyne) group enables copper-catalyzed azide-alkyne click chemistry.
  • NHS ester is amine-reactive for efficient conjugation to primary amines.
  • High purity (97.0%) and molecular weight of 357.36 g/mol aid predictable performance.
  • Viscous liquid form; recommended storage: pure form -20°C, in solvent -80°C or -20°C.

Catalog No. 50-002-03462


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