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NH2-PEG4-Val-Cit-PAB-OH is a cleavable ADC linker that features a primary amine, a hydrophilic PEG spacer, a Val-Cit dipeptide, and a PAB group. The benzyl alcohol on the PAB component is suitable for attaching reactive groups (such as PNP) to facilitate binding with drug payloads. The primary amine is versatile for reactions such as coupling with carboxylic acids, reductive amination with ketones or aldehydes, or other specialized applications like SNAr reactions or heterocyclic chemistry. The Val-Cit dipeptide is cleaved by intracellular cathepsins, allowing efficient payload delivery via an elimination mechanism through the PAB structure.

| Pack Size | Price | USA Warehouse | Global Warehouse | Quantity |
|---|---|---|---|---|
| 10 mg | Inquiry | 10-14 weeks | 10-14 weeks | |
| 50 mg | Inquiry | 10-14 weeks | 10-14 weeks |
| Description | NH2-PEG4-Val-Cit-PAB-OH is a cleavable ADC linker that features a primary amine, a hydrophilic PEG spacer, a Val-Cit dipeptide, and a PAB group. The benzyl alcohol on the PAB component is suitable for attaching reactive groups (such as PNP) to facilitate binding with drug payloads. The primary amine is versatile for reactions such as coupling with carboxylic acids, reductive amination with ketones or aldehydes, or other specialized applications like SNAr reactions or heterocyclic chemistry. The Val-Cit dipeptide is cleaved by intracellular cathepsins, allowing efficient payload delivery via an elimination mechanism through the PAB structure. |
| Molecular Weight | 626.742 |
| Formula | C29H50N6O9 |
| Cas No. | 2055024-61-6 |
| Smiles | N(C([C@@H](NC([C@@H](NC(CCOCCOCCOCCOCCN)=O)[C@@H](C)C)=O)CCCNC(N)=O)=O)C1=CC=C(CO)C=C1 |
| Storage | Powder: -20°C for 3 years | In solvent: -80°C for 1 year |
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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