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Propargyl-PEG4-Tos is a PEG-based PROTAC linker used for constructing bifunctional degraders and for synthesizing cleavable ADC linkers. Propargyl-PEG4-Tos provides a reactive propargyl group suitable for click chemistry and a tosyl leaving group that facilitates controlled conjugation steps, making it essential in targeted protein-degradation research and antibody–drug conjugate engineering.

| Pack Size | Price | USA Warehouse | Global Warehouse | Quantity |
|---|---|---|---|---|
| 200 mg | $29 | 7-10 days | 7-10 days |
| Description | Propargyl-PEG4-Tos is a PEG-based PROTAC linker used for constructing bifunctional degraders and for synthesizing cleavable ADC linkers. Propargyl-PEG4-Tos provides a reactive propargyl group suitable for click chemistry and a tosyl leaving group that facilitates controlled conjugation steps, making it essential in targeted protein-degradation research and antibody–drug conjugate engineering. |
| In vitro | PROTACs, composed of two ligands linked together—one for an E3 ubiquitin ligase and the other for the target protein—utilize the intracellular ubiquitin-proteasome system to selectively degrade target proteins. ADCs consist of an antibody linked to a cytotoxin via an ADC linker. |
| Molecular Weight | 386.46 |
| Formula | C18H26O7S |
| Cas No. | 875770-32-4 |
| Smiles | O=S(=O)(OCCOCCOCCOCCOCC#C)C1=CC=C(C=C1)C |
| Relative Density. | 1.177 g/cm3 (Predicted) |
| Storage | Powder: -20°C for 3 years | In solvent: -80°C for 1 year | Shipping with blue ice/Shipping at ambient temperature. |
Dissolve 2 mg of the compound in 100 μL DMSO
to obtain a stock solution at a concentration of 20 mg/mL . If the required concentration exceeds the compound's known solubility, please contact us for technical support before proceeding.
1) Add 100 μL of the DMSO
stock solution to 400 μL PEG300
and mix thoroughly until the solution becomes clear.
2) Add 50 μL Tween 80 and mix well until fully clarified.
3) Add 450 μL Saline,PBS or ddH2O
and mix thoroughly until a homogeneous solution is obtained.
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