STING-IN-4
Based on 1 Customer Validation
STING-IN-4 (Compound 1) is a STING inhibitor that inhibits STING expression and hence reducing activation of STING and nuclear factor-κB (NF-κB) signaling. STING-IN-4 shows anti-inflammatory activity and can be used for the research of sepsis.
For research use only. We do not sell to patients.
- Purity : 99.48%
- CAS No.: 2250374-27-5
- Formula: C32H46N2O3
- Molecular Weight:506.72
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Storage:Powder -20°C, 3 years ; In solvent -80°C, 6 months , -20°C, 1 month
Biological Activity
Description
IC50 & Target
STING[1]
In Vitro
STING-IN-4 (Compound 1) (20 μM; 26 h) inhibits NO production induced by LPS in RAW264.7 cells[1].
STING-IN-4 (2.5-10 μM; 26 h) significantly inhibits the expression of iNOS in RAW264.7 cells[1].
STING-IN-4 (5 and 50 μM; 12 h) significantly reduces STING degradation at 49, 52, and 55 °C and it may have an ability to interact with STING and enhance thermal stabilization of STING[1].
STING-IN-4 (2.5-10 μM; 8 h) inhibits LPS-induced activation of STING/IRF3/NF-κB[1].
MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only. Further protocols information, click here.
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Cell Line:RAW264.7 cells
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Concentration:2.5, 5 and 10 μM
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Incubation Time:Pre-treated for 2 h followed LPS treatment for 6 h or 24 h
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Result:Inhibited the expression of iNOS (24 h). Blocked LPS-induced phosphorylation of TBK1, IRF3, p65, and IκB-α (6 h).
In Vivo
MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.
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Animal Model:BALB/c mice, LPS-induced acute liver injury model[1]
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Dosage:1, 3 and 9 mg/kg
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Administration:Intraperitoneal injection, daily for 3 days
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Result:Significantly reduced the hemorrhage severity. Decreased the levels of alanine transaminase (ALT), aspartate aminotransferase (AST), and alkaline phosphatase (ALP) induced by LPS. Significantly reduced the levels of TNF-α, IL-6, and IFN-β compared with mice treated only with LPS. Markedly reduced the levels of STING, p-TBK, p-IRF3, p-p65, and p-IκB-α.
Chemical Information
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CAS No. 2250374-27-5
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Appearance Solid
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Molecular Weight 506.72
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Formula C32H46N2O3
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Color White to off-white
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SMILES
C[C@@]12[C@]3([H])[C@]([C@]4(C([C@@]5([H])[C@@](CC4)(CCC(C)(C5)C)C(O)=O)=CC3)C)(CC[C@@]1([H])[C@@](C)(C6=NC=CN=C6C2)CO)C
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Shipping
Room temperature in continental US; may vary elsewhere.
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Storage
Powder -20°C 3 years In solvent -80°C 6 months -20°C 1 month
Solvent & Solubility
In Vitro:
DMSO : 93.33 mg/mL (184.18 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)
In Vivo:
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 (4.93 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 (4.93 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.
In Vivo Dissolution Calculator
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.
Protocols
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RNA extraction experimental
By lysing cells, releasing RNA, and removing impurities such as proteins and DNA, high-purity RNA products are finally obtained. The commonly used traditional method is the guanidine isothiocyanate/phenol/chloroform method (Trizol), which is suitable for a variety of animal materials including animal tissues, microorganisms, cultured cells, etc., and most plant materials.
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LPS-Induced Endotoxemia/Systemic Inflammation
Lipopolysaccharide (LPS)-induced endotoxemia is a widely used in vivo model of acute systemic inflammation in which LPS, a Gram-negative bacterial endotoxin, activates innate immune signaling primarily through TLR4, leading to rapid and transient induction of pro-inflammatory cytokines such as TNF-α, IL-6, and IL-1β in circulation and tissues. This cytokine surge is commonly used as a measurable readout of systemic inflammatory activation and immune dysregulation, and is typically assessed within hours after intraperitoneal LPS administration in mouse models of endotoxemia. The model captures key features of systemic inflammatory response syndrome, including cytokine release, immune cell activation, and downstream tissue responses, and has been used to evaluate anti-inflammatory interventions such as cytokine modulation, lipid mediators, and immune cell-targeting therapies.
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Cotton Pellet Granuloma
Cotton pellet granuloma is a classical in vivo chronic inflammation model used to evaluate the anti-inflammatory potential of test substances by measuring their ability to inhibit granuloma tissue formation around an implanted foreign body (cotton pellet) in rodents. The method is based on the biological response to a sterile implanted material, which induces proliferative phase inflammation characterized by fibroblast proliferation and collagen-rich granuloma formation, and the final readout reflects the extent of chronic inflammatory tissue growth surrounding the pellet. In multiple preclinical pharmacological evaluations, inhibition of cotton pellet-induced granuloma formation has been used as an indicator of anti-inflammatory activity in both synthetic and natural product screening contexts.
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Carrageenan-Induced Paw Edema
Carrageenan-induced paw edema is an acute inflammation model in which intraplantar injection of carrageenan induces localized inflammatory swelling characterized by vascular permeability, leukocyte infiltration, and production of inflammatory mediators such as prostaglandins and cytokines, making it widely used to evaluate anti-inflammatory agents in vivo. The resulting paw volume or thickness increase is quantified over time as a direct readout of inflammatory intensity and drug efficacy, typically reflecting cyclooxygenase-mediated prostaglandin-driven edema formation and immune cell recruitment in peripheral tissue[20].
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Research Protocol for Inflammation-related Diseases
The NLRP3 inflammasome is a cytosolic innate immune signaling platform that integrates priming signals and danger-signal activation to promote caspase-1 activation, maturation of IL-1β and IL-18, and gasdermin D-mediated pyroptotic cell death. The core experimental logic is to determine whether inflammatory disease phenotypes are driven by increased NLRP3 expression, ASC-containing inflammasome assembly, caspase-1 cleavage, GSDMD cleavage, and extracellular release of IL-1β/IL-18 rather than by nonspecific cell injury alone. The pathway is strongly linked to inflammation-related disease phenotypes because monosodium urate crystals activate NALP3/NLRP3 inflammasome signaling in gout-like crystal inflammation, cholesterol crystals activate NLRP3 inflammasomes in atherogenesis models, and DSS-induced intestinal inflammation has been reported to involve NLRP3 inflammasome activity. However, experimental colitis studies also show context-dependent protective effects of NLRP3 inflammasome co
Purity & Documentation
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Data Sheet (278 KB)
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SDS (252 KB)
- English - EN (252 KB)
- Français - FR (252 KB)
- Deutsch - DE (252 KB)
- Norwegian - NO (252 KB)
- Español - ES (252 KB)
- Swedish - SV (252 KB)
- Italian - IT (252 KB)
- Korean - KR (252 KB)
- Portuguese - PT (252 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 | 1.9735 mL | 9.8674 mL | 19.7348 mL | 49.3369 mL |
| 5 mM | 0.3947 mL | 1.9735 mL | 3.9470 mL | 9.8674 mL | |
| 10 mM | 0.1973 mL | 0.9867 mL | 1.9735 mL | 4.9337 mL | |
| 15 mM | 0.1316 mL | 0.6578 mL | 1.3157 mL | 3.2891 mL | |
| 20 mM | 0.0987 mL | 0.4934 mL | 0.9867 mL | 2.4668 mL | |
| 25 mM | 0.0789 mL | 0.3947 mL | 0.7894 mL | 1.9735 mL | |
| 30 mM | 0.0658 mL | 0.3289 mL | 0.6578 mL | 1.6446 mL | |
| 40 mM | 0.0493 mL | 0.2467 mL | 0.4934 mL | 1.2334 mL | |
| 50 mM | 0.0395 mL | 0.1973 mL | 0.3947 mL | 0.9867 mL | |
| 60 mM | 0.0329 mL | 0.1645 mL | 0.3289 mL | 0.8223 mL | |
| 80 mM | 0.0247 mL | 0.1233 mL | 0.2467 mL | 0.6167 mL | |
| 100 mM | 0.0197 mL | 0.0987 mL | 0.1973 mL | 0.4934 mL |