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Tos-PEG4-t-butyl ester (Tos-PEG4-Boc) is a PROTAC linker characterized by its PEG composition, crucial in synthesizing various PROTACs, including BI-3663, a selective PTK2/FAK PROTAC. Using cereblon ligands, it targets E3 ligases to degrade PTK2, exhibiting potent inhibitory activity with an IC50 of 18 nM[1].

| Pack Size | Price | USA Warehouse | Global Warehouse | Quantity |
|---|---|---|---|---|
| 100 mg | Inquiry | 7-10 days | 7-10 days | |
| 500 mg | Inquiry | 7-10 days | 7-10 days |
| Description | Tos-PEG4-t-butyl ester (Tos-PEG4-Boc) is a PROTAC linker characterized by its PEG composition, crucial in synthesizing various PROTACs, including BI-3663, a selective PTK2/FAK PROTAC. Using cereblon ligands, it targets E3 ligases to degrade PTK2, exhibiting potent inhibitory activity with an IC50 of 18 nM[1]. |
| Synonyms | Tos-PEG4-Boc |
| Molecular Weight | 432.53 |
| Formula | C20H32O8S |
| Cas No. | 217817-01-1 |
| Smiles | S(OCCOCCOCCOCCC(OC(C)(C)C)=O)(=O)(=O)C1=CC=C(C)C=C1 |
| Relative Density. | 1.154 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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