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Medchemexpress LLC Propargyl-PEG5-NHS ester | 1393330-40-9 | 98.0% | 401.41 g/mol | C18H27NO9 | 250 MG
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Supplier:  Medchemexpress LLC HY130388250MG

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Propargyl-PEG5-NHS ester is an alkyne-terminated, amine-reactive PEG5 NHS ester used for bioconjugation and click chemistry. The NHS ester reacts with primary amines to form stable amide bonds, while the propargyl (alkyne) group enables copper-catalyzed azide-alkyne cycloaddition (CuAAC), making it suitable for linker incorporation in antibody-drug conjugates and PROTAC synthesis.

  • Amine-reactive NHS ester for stable amide formation.
  • Alkyne (propargyl) handle for copper-catalyzed click chemistry.
  • PEG5 spacer provides hydrophilicity and conformational flexibility.
  • High purity suitable for research-grade bioconjugation.
  • Available in milligram to gram pack sizes for method development.

Catalog No. 50-002-04127


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