OXSI-2
Based on 1 Customer Validation
OXSI-2 is a bioavailable, cell-permeable Syk inhibitor with an EC50 of 313 nM and an IC50 of 14 nM.
For research use only. We do not sell to patients.
- Purity: 99.9%
- CAS No.: 622387-85-3
- Formula: C18H15N3O3S
- Molecular Weight:353.40
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Storage:
-20°C, protect from light, stored under nitrogen
* In solvent : -80°C, 6 months; -20°C, 1 month (protect from light, stored under nitrogen)
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Biological Activity
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Chemical Information
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Solvent & Solubility
- Purity & Documentation
- References
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Help & FAQs
Biological Activity
OXSI-2 (2 μM) completely inhibits Convulxin-induced platelet aggregation and shape change. OXSI-2 (2 μM) also completely blocks GPVI-mediated dense granule release. OXSI-2 (100 nM) does not affect the platelet functional responses induced by Convulxin, and modest shape change is still evident at 1 μM[1].
Adaptor protein LAT is a known substrate of Syk Kinase. OXSI-2 completely inhibits LAT Y191 phosphorylation. OXSI-2 inhibits Syk mediated events in platelets[1].
OXSI-2 (2 μM) inhibits inflammasome assembly, caspase-1 activation, IL-1β processing and release, mitochondrial ROS generation, and pyroptotic cell death[2].
MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.
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Cell Line:Aspirin-treated, washed human platelets
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Concentration:2 μM
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Incubation Time:
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Result:Completely inhibited Syk-mediated LAT Y191 phosphorylation.
Chemical Information
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CAS No. 622387-85-3
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Appearance Solid
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Molecular Weight 353.40
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Formula C18H15N3O3S
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Color Light yellow to brown
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SMILES
O=S(C1=CC2=C(NC(/C2=C/C3=CN(C)C4=C3C=CC=C4)=O)C=C1)(N)=O
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Shipping
Room temperature in continental US; may vary elsewhere.
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Storage
-20°C, protect from light, stored under nitrogen
* In solvent : -80°C, 6 months; -20°C, 1 month (protect from light, stored under nitrogen)
Solvent & Solubility
DMSO : 10 mg/mL (28.30 mM; Need ultrasonic and warming; 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 (protect from light, stored under nitrogen). 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 (protect from light, stored under nitrogen). 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)
Purity & Documentation
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Data Sheet (281 KB)
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SDS (394 KB)
- English - EN (394 KB)
- Français - FR (394 KB)
- Deutsch - DE (394 KB)
- Norwegian - NO (394 KB)
- Español - ES (394 KB)
- Swedish - SV (394 KB)
- Italian - IT (394 KB)
- Korean - KR (394 KB)
- Portuguese - PT (394 KB)
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Handling Instructions (2659 KB)
References
[1]. Kamala Bhavaraju, et al. Evaluation of [3-(1-methyl-1H-indol-3-yl-methylene)-2-oxo-2, 3-dihydro-1H-indole-5-sulfonamide] (OXSI-2), as a Syk-selective inhibitor in platelets. Eur J Pharmacol. 2008 Feb 12;580(3):285-90. [Content Brief]
[2]. Jordan R Yaron, et al. The oxindole Syk inhibitor OXSI-2 blocks nigericin-induced inflammasome signaling and pyroptosis independent of potassium efflux. Biochem Biophys Res Commun. 2016 Apr 8;472(3):545-50. [Content Brief]
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 (protect from light, stored under nitrogen). 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 | 2.8297 mL | 14.1483 mL | 28.2965 mL | 70.7414 mL |
| 5 mM | 0.5659 mL | 2.8297 mL | 5.6593 mL | 14.1483 mL | |
| 10 mM | 0.2830 mL | 1.4148 mL | 2.8297 mL | 7.0741 mL | |
| 15 mM | 0.1886 mL | 0.9432 mL | 1.8864 mL | 4.7161 mL | |
| 20 mM | 0.1415 mL | 0.7074 mL | 1.4148 mL | 3.5371 mL | |
| 25 mM | 0.1132 mL | 0.5659 mL | 1.1319 mL | 2.8297 mL |
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