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Desthiobiotin-PEG3-NHS ester is a monocyclic, sulfur-free biotin analog characterized by a binding specificity to streptavidin that is nearly identical to that of biotin, although with a lower affinity (Kd = 10^11 compared to 10^15 M). Consequently, desthiobiotinylated proteins can be gently and specifically eluted from streptavidin affinity resins under conditions that involve competitive displacement with free biotin.

| 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 | Desthiobiotin-PEG3-NHS ester is a monocyclic, sulfur-free biotin analog characterized by a binding specificity to streptavidin that is nearly identical to that of biotin, although with a lower affinity (Kd = 10^11 compared to 10^15 M). Consequently, desthiobiotinylated proteins can be gently and specifically eluted from streptavidin affinity resins under conditions that involve competitive displacement with free biotin. |
| Molecular Weight | 514.569 |
| Formula | C23H38N4O9 |
| Cas No. | 2411681-92-8 |
| Smiles | O(C(CCOCCOCCOCCNC(CCCCC[C@H]1NC(=O)N[C@H]1C)=O)=O)N2C(=O)CCC2=O |
| 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.
| Size | Quantity | Unit Price | Amount | Operation |
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