Stafib-1
Based on 1 publication(s) in Google Scholar
Stafib-1 is the first selective inhibitor of the STAT5b SH2 domain, with a Ki of 44 nM and an IC50 of 154 nM.
For research use only. We do not sell to patients.
- Purity: 99.25%
- CAS No.: 1688703-26-5
- Formula: C26H24N2O11P2
- Molecular Weight:602.42
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Storage:Powder -20°C, 3 years , 4°C, 2 years ; In solvent -80°C, 6 months , -20°C, 1 month
Publications Citing Use of MedChemExpress (MCE) Stafib-1
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Biological Activity
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STAT5b 154 nM (IC50) |
Stafib-1 is the first small molecule which inhibits the STAT5b SH2 domain with more than 50-fold selectivity over STAT5a[1].
MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.
Chemical Information
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CAS No. 1688703-26-5
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Appearance Solid
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Molecular Weight 602.42
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Formula C26H24N2O11P2
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Color White to off-white
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SMILES
O=C(C1=CC=C2C=C(OCC(NCC3=CC=C(OP(O)(O)=O)C(OP(O)(O)=O)=C3)=O)C=CC2=C1)NC4=CC=CC=C4
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Shipping
Room temperature in continental US; may vary elsewhere.
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Storage
Powder -20°C 3 years 4°C 2 years In solvent -80°C 6 months -20°C 1 month
Publications (1)
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Journal Impact Factor
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Most Recent
Solvent & Solubility
DMSO : 100 mg/mL (166.00 mM; Need ultrasonic; Hygroscopic DMSO has a significant impact on the solubility of product, please use newly opened DMSO)
Please refer to the solubility information to select the appropriate solvent. Once prepared, please aliquot and store the solution to prevent product inactivation from repeated freeze-thaw cycles.
Storage method and period of stock solution: -80°C, 6 months; -20°C, 1 month. When stored at -80°C, please use it within 6 months. When stored at -20°C, please use it within 1 month.
Please refer to the solubility information to select the appropriate solvent. Once prepared, please aliquot and store the solution to prevent product inactivation from repeated freeze-thaw cycles.
Storage method and period of stock solution: -80°C, 6 months; -20°C, 1 month. When stored at -80°C, please use it within 6 months. When stored at -20°C, please use it within 1 month.
Concentration (start) × Volume (start) = Concentration (final) × Volume (final)
Select the appropriate dissolution method based on your experimental animal and administration route.
- For the following dissolution methods, please ensure to first prepare a clear stock solution using an In Vitro approach and then sequentially add co-solvents:
- To ensure reliable experimental results, the clarified stock solution can be appropriately stored based on storage conditions. As for the working solution for In Vivo experiments, it is recommended to prepare freshly and use it on the same day.
- The percentages shown for the solvents indicate their volumetric ratio in the final prepared solution. If precipitation or phase separation occurs during preparation, heat and/or sonication can be used to aid dissolution.
Add each solvent one by one: 10% DMSO 40% PEG300 5% Tween-80 45% Saline
Solubility: ≥ 2.5 mg/mL (4.15 mM); Clear solution
This protocol yields a clear solution of ≥ 2.5 mg/mL (saturation unknown).
Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (25.0 mg/mL) to 400 μL PEG300, and mix evenly; then add 50 μL Tween-80 and mix evenly; then add 450 μL Saline to adjust the volume to 1 mL.
Preparation of Saline: Dissolve 0.9 g sodium chloride in ddH₂O and dilute to 100 mL to obtain a clear Saline solution.
Add each solvent one by one: 10% DMSO 90% (20% SBE-β-CD in Saline)
Solubility: ≥ 2.5 mg/mL (4.15 mM); Clear solution
This protocol yields a clear solution of ≥ 2.5 mg/mL (saturation unknown).
Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (25.0 mg/mL) to 900 μL 20% SBE-β-CD in Saline, and mix evenly.
Preparation of 20% SBE-β-CD in Saline (4°C, storage for one week): 2 g SBE-β-CD powder is dissolved in 10 mL Saline, completely dissolve until clear.
Please enter the basic information of animal experiments:
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Recommended: Prepare an additional quantity of animals to account for potential losses during experiments.
Please enter your animal formula composition:
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%DMSO +
Recommended: Keep the proportion of DMSO in working solution below 2% if your animal is weak.
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%+
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+%Tween-80 + +
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%Saline +
The co-solvents required include: DMSO, . All of co-solvents are available by MedChemExpress (MCE). , Tween 80. All of co-solvents are available by MedChemExpress (MCE).
Working solution concentration: 0.22 mg/mL
Method for preparing stock solution: mg drug dissolved in μL DMSO. Stock solution concentration: mg/mL.
1. Take μL DMSO stock solution;
2. Add μL .
μL , mix evenly;
3. Then add μL Tween 80, mix evenly;
4. Then add μL
Please ensure that the stock solution in the first step is dissolved to a clear state, and add co-solvents in sequence. You can use ultrasonic heating (ultrasonic cleaner, recommended frequency 20-40 kHz), vortexing, etc. to assist dissolution.
Purity & Documentation
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Data Sheet (270 KB)
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SDS (393 KB)
- English - EN (393 KB)
- Français - FR (393 KB)
- Deutsch - DE (393 KB)
- Norwegian - NO (393 KB)
- Español - ES (393 KB)
- Swedish - SV (393 KB)
- Italian - IT (393 KB)
- Korean - KR (393 KB)
- Portuguese - PT (393 KB)
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Handling Instructions (2659 KB)
References
Complete Stock Solution Preparation Table
Please refer to the solubility information to select the appropriate solvent. Once prepared, please aliquot and store the solution to prevent product inactivation from repeated freeze-thaw cycles.
Storage method and period of stock solution: -80°C, 6 months; -20°C, 1 month. When stored at -80°C, please use it within 6 months. When stored at -20°C, please use it within 1 month.
| Optional Solvent | Concentration Solvent Mass | 1 mg | 5 mg | 10 mg | 25 mg |
|---|---|---|---|---|---|
| DMSO | 1 mM | 1.6600 mL | 8.2999 mL | 16.5997 mL | 41.4993 mL |
| 5 mM | 0.3320 mL | 1.6600 mL | 3.3199 mL | 8.2999 mL | |
| 10 mM | 0.1660 mL | 0.8300 mL | 1.6600 mL | 4.1499 mL | |
| 15 mM | 0.1107 mL | 0.5533 mL | 1.1066 mL | 2.7666 mL | |
| 20 mM | 0.0830 mL | 0.4150 mL | 0.8300 mL | 2.0750 mL | |
| 25 mM | 0.0664 mL | 0.3320 mL | 0.6640 mL | 1.6600 mL | |
| 30 mM | 0.0553 mL | 0.2767 mL | 0.5533 mL | 1.3833 mL | |
| 40 mM | 0.0415 mL | 0.2075 mL | 0.4150 mL | 1.0375 mL | |
| 50 mM | 0.0332 mL | 0.1660 mL | 0.3320 mL | 0.8300 mL | |
| 60 mM | 0.0277 mL | 0.1383 mL | 0.2767 mL | 0.6917 mL | |
| 80 mM | 0.0207 mL | 0.1037 mL | 0.2075 mL | 0.5187 mL | |
| 100 mM | 0.0166 mL | 0.0830 mL | 0.1660 mL | 0.4150 mL |