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4-arm Poly(ethylene glycol) thiol


4-arm Poly(ethylene glycol) thiol

4-Arm-PEG-SH

Catalog:CDA-A4066

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INQUIRY Datasheet

SynonymMulti-arm PEGs, Poly(ethylene glycol)
Common Use4-Arm PEG-Thiol (4-arm PEG-SH) is a multiarm PEG derivative with thiol groups at each terminal of the four arms. The reactive free thiol, SH, sulfhydryl, or mercapto groups selectively react with maleimide and transition metal surface including gold, silver, etc. PEG-SH can be easily air oxidized to form S-S disulfide (disulphide) bonds, which can be reversed with reducing agents. It is a useful reagent for reversible PEGylation and PEG hydrogel.
Structure 4-arm Poly(ethylene glycol) thiol
PEG Molecular Weight2,000 Da
Functional GroupThiol
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