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Functional PEGs

4-Arm PEG-Thiol, 4-Arm PEG-SH, MW 5,000

Catalog: TASK-03-1000002   CAS NO.: N/A
  • 1g
  • 5g


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4-Arm PEG-Thiol (4-arm PEG-SH) is a multiarmed PEG derivative with thiol at each terminal of the four arms connected to one pentaerythritol core. The free thiol, SH, sulfhydryl, or mercapto groups selectively react with maleimide. Thiol also reacts with transition metal surface including gold, silver forming PEG coating. PEG-SH can be easily air oxidized to form S-S disulfide bonds, which is reversible with reducing agents such as TECP. It is a useful reagent for reversible PEGylation and preparing PEG hydrogel.


Molecular Weight5,000
Ship Within1 week
Storage Temp.-20℃
Shipping4-25℃ for up to 3 weeks
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