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N-(m-PEG4)-N'-(PEG4-NHS ester)-Cy5 is a polyethylene glycol (PEG)-based linker frequently used in the synthesis of proteolysis-targeting chimeras (PROTACs)[1].

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| Description | N-(m-PEG4)-N'-(PEG4-NHS ester)-Cy5 is a polyethylene glycol (PEG)-based linker frequently used in the synthesis of proteolysis-targeting chimeras (PROTACs)[1]. |
| In vitro | PROTACs utilize the intracellular ubiquitin-proteasome system for selective degradation of target proteins by comprising two distinct ligands linked together: one ligand targets an E3 ubiquitin ligase and the other targets the protein of interest[1]. |
| Molecular Weight | 926.53 |
| Formula | C49H68ClN3O12 |
| Cas No. | 2107273-30-1 |
| Relative Density. | no data available |
| Storage | Powder: -20°C for 3 years | In solvent: -80°C for 1 year | Shipping with blue ice/Shipping at ambient temperature. |
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