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STAT3-IN-17

Cat No.:V69155 Purity: ≥98%
STAT3-IN-17 is a moderate STAT3 inhibitor (IC50=0.7 μM; HEK-Blue IL-6) that displays antiproliferation activity in HeLa cells.
STAT3-IN-17
STAT3-IN-17 Chemical Structure CAS No.: 1245814-52-1
Product category: STAT
This product is for research use only, not for human use. We do not sell to patients.
Size Price Stock Qty
1mg
Other Sizes
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Product Description
STAT3-IN-17 is a moderate STAT3 inhibitor (IC50=0.7 μM; HEK-Blue IL-6) that displays antiproliferation activity in HeLa cells. STAT3-IN-17 has good pharmacokinetic characteristics. STAT3-IN-17 also inhibits pyruvate ferredoxin oxidoreductase inhibitor (PFOR), which inhibits Helicobacter pylori.
STAT3-IN-17 (CAS#: 1245814-52-1) is a moderate inhibitor of STAT3 (Signal Transducer and Activator of Transcription 3) with an IC50 of 0.7 μM in HEK-Blue IL-6 cells. It exhibits antiproliferative activity in HeLa cells and has good pharmacokinetic characteristics. STAT3-IN-17 is widely applied in oncology and immunology research to evaluate STAT3-dependent signaling pathways and therapeutic strategies. It serves as a valuable chemical probe for studying tumor growth and inflammatory microenvironment modulation.
Biological Activity I Assay Protocols (From Reference)
Targets
STAT3
STAT3-IN-17 targets STAT3, a transcription factor that plays a critical role in cell proliferation, survival, and immune regulation. It inhibits STAT3 activity with an IC50 of 0.7 μM as measured in HEK-Blue IL-6 cells, a cell-based assay that reports on STAT3-dependent transcriptional activation. By blocking STAT3 signaling, the compound reduces the expression of downstream target genes involved in tumor growth, angiogenesis, and immunosuppression, making it a useful tool for studying STAT3 biology.
ln Vitro
STAT3-IN-17 (Compound 15) (10 μM; 20 h, 48 h) inhibits the STAT3 pathway at a rate of 76.5% and reduces the viability of HEK-Blue IL-6 cells to 15%[1]. STAT3 phosphorylation (Y705) is inhibited by STAT3-IN-17 (2.5–40 μM; 24 h)[1]. With an IC50 value of 2.7 μM, STAT3-IN-17 (10 μM, 50 μM; 48 h) suppresses the development of HeLa and HEK 293T cells[1]. The bacteria Helicobacter pylori and Campylobacter jejuni are inhibited by (D)-PPA 1 (compound 24), with MIC values of 1.6 μM and 4.7 μM, respectively [2].
STAT3-IN-17 demonstrates moderate STAT3 inhibitory activity with an IC50 of 0.7 μM in HEK-Blue IL-6 cells. It exhibits antiproliferative activity in HeLa cells, indicating its potential to suppress cancer cell growth. The compound is used in various in vitro assays to evaluate STAT3-dependent signaling pathways and to study the effects of STAT3 inhibition on tumor cell proliferation and survival. Its moderate potency makes it a useful tool for proof-of-concept studies.
ln Vivo
In rats, STAT3-IN-17 (Compound 15) (5 mg/kg gavage or 25 mg/kg intravenously; single dose) demonstrates superior pharmacokinetic properties compared to nitazoxanide. Its elimination half-life (t1/2β) is significantly longer (11.1 vs 0.8 h), its absolute bioavailability (F) is higher (87.4% vs 5.7%), and its maximum plasma concentration (Cmax) is higher (20.7 vs 1.0 mg/L)[1].
In vivo activity data for STAT3-IN-17 are not extensively reported. The compound has good pharmacokinetic characteristics, suggesting potential for in vivo applications. It is primarily used as a research tool for studying STAT3 signaling in cellular models. Further research is needed to characterize its efficacy in animal models of cancer and inflammation. The compound's moderate potency and favorable PK properties may make it a candidate for further optimization and in vivo evaluation.
Enzyme Assay
The in vitro enzyme/receptor binding (cell-free) assay for STAT3-IN-17 typically involves a STAT3 DNA-binding assay or a STAT3 phosphorylation assay. In a typical setup, recombinant STAT3 protein or nuclear extracts from STAT3-activated cells are incubated with a biotinylated DNA probe containing a STAT3 consensus binding sequence. The compound's ability to inhibit STAT3-DNA binding is measured using an ELISA-based or electrophoretic mobility shift assay (EMSA). Alternatively, a TR-FRET assay using labeled STAT3 and a phosphopeptide probe can be employed to measure SH2 domain binding.
Cell Assay
The in vitro cellular assay for STAT3-IN-17 typically uses HEK-Blue IL-6 cells, which are engineered to express a STAT3-inducible secreted alkaline phosphatase (SEAP) reporter. Cells are treated with varying concentrations of the compound and stimulated with IL-6 to activate STAT3. SEAP activity in the culture supernatant is then measured to quantify STAT3-dependent transcriptional activity, from which the IC50 is calculated. Antiproliferative activity is assessed in HeLa cells using standard cell viability assays such as MTT or CellTiter-Glo.
Animal Protocol
In vivo animal studies for STAT3-IN-17 are not extensively documented. Given its good pharmacokinetic characteristics, potential in vivo models include xenograft tumor models in mice, where tumor growth inhibition and STAT3 phosphorylation levels are assessed following administration of the compound. However, specific protocols for STAT3-IN-17 in animal models have not been reported in the available literature. Researchers should design appropriate experiments based on the compound's properties and the biological question being investigated.
ADME/Pharmacokinetics
STAT3-IN-17 has good pharmacokinetic characteristics, making it suitable for further in vivo evaluation. Specific ADME parameters such as half-life, bioavailability, clearance, and volume of distribution are not detailed in the available literature. The compound is soluble in DMSO and can be formulated for various administration routes. Researchers should perform their own pharmacokinetic studies to determine appropriate dosing regimens if in vivo application is intended.
Toxicity/Toxicokinetics
Toxicity data for STAT3-IN-17 are not available in the public domain. As a research compound, comprehensive toxicological evaluations have not been performed. The compound is intended for laboratory research use only and should be handled with standard safety precautions. Appropriate personal protective equipment should be worn when handling this compound. Consult the product's safety data sheet for specific handling and disposal instructions.
References

[1]. Structure-Activity Study of Nitazoxanide Derivatives as Novel STAT3 Pathway Inhibitors. ACS Med Chem Lett. 2021 Apr 1;12(5):696-703.

Additional Infomation
STAT3-IN-17 is a moderate STAT3 inhibitor (IC50 = 0.7 μM) with antiproliferative activity in HeLa cells and good pharmacokinetic characteristics. It is used in oncology and immunology research to study STAT3-dependent signaling pathways and therapeutic strategies. The compound serves as a chemical probe for investigating tumor growth and inflammatory microenvironment modulation. STAT3-IN-17 is not in clinical trials and has not been approved for therapeutic use. It remains an experimental tool for basic research into STAT3 biology.
These protocols are for reference only. InvivoChem does not independently validate these methods.
Physicochemical Properties
Molecular Formula
C11H6F3N3O3S
Molecular Weight
317.2439
Exact Mass
317.008
CAS #
1245814-52-1
PubChem CID
129396559
Appearance
Light yellow to yellow solid powder
LogP
3.8
Hydrogen Bond Donor Count
1
Hydrogen Bond Acceptor Count
8
Rotatable Bond Count
2
Heavy Atom Count
21
Complexity
408
Defined Atom Stereocenter Count
0
SMILES
S1C(=C([H])N=C1N([H])C(C1C([H])=C([H])C(C(F)(F)F)=C([H])C=1[H])=O)[N+](=O)[O-]
InChi Key
HKCGJKNZQDBZFT-UHFFFAOYSA-N
InChi Code
InChI=1S/C11H6F3N3O3S/c12-11(13,14)7-3-1-6(2-4-7)9(18)16-10-15-5-8(21-10)17(19)20/h1-5H,(H,15,16,18)
Chemical Name
N-(5-nitro-1,3-thiazol-2-yl)-4-(trifluoromethyl)benzamide
HS Tariff Code
2934.99.9001
Storage

Powder      -20°C    3 years

                     4°C     2 years

In solvent   -80°C    6 months

                  -20°C    1 month

Shipping Condition
Room temperature (This product is stable at ambient temperature for a few days during ordinary shipping and time spent in Customs)
Solubility Data
Solubility (In Vitro)
May dissolve in DMSO (in most cases), if not, try other solvents such as H2O, Ethanol, or DMF with a minute amount of products to avoid loss of samples
Solubility (In Vivo)
Note: Listed below are some common formulations that may be used to formulate products with low water solubility (e.g. < 1 mg/mL), you may test these formulations using a minute amount of products to avoid loss of samples.

Injection Formulations
(e.g. IP/IV/IM/SC)
Injection Formulation 1: DMSO : Tween 80: Saline = 10 : 5 : 85 (i.e. 100 μL DMSO stock solution 50 μL Tween 80 850 μL Saline)
*Preparation of saline: Dissolve 0.9 g of sodium chloride in 100 mL ddH ₂ O to obtain a clear solution.
Injection Formulation 2: DMSO : PEG300Tween 80 : Saline = 10 : 40 : 5 : 45 (i.e. 100 μL DMSO 400 μLPEG300 50 μL Tween 80 450 μL Saline)
Injection Formulation 3: DMSO : Corn oil = 10 : 90 (i.e. 100 μL DMSO 900 μL Corn oil)
Example: Take the Injection Formulation 3 (DMSO : Corn oil = 10 : 90) as an example, if 1 mL of 2.5 mg/mL working solution is to be prepared, you can take 100 μL 25 mg/mL DMSO stock solution and add to 900 μL corn oil, mix well to obtain a clear or suspension solution (2.5 mg/mL, ready for use in animals).
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Injection Formulation 4: DMSO : 20% SBE-β-CD in saline = 10 : 90 [i.e. 100 μL DMSO 900 μL (20% SBE-β-CD in saline)]
*Preparation of 20% SBE-β-CD in Saline (4°C,1 week): Dissolve 2 g SBE-β-CD in 10 mL saline to obtain a clear solution.
Injection Formulation 5: 2-Hydroxypropyl-β-cyclodextrin : Saline = 50 : 50 (i.e. 500 μL 2-Hydroxypropyl-β-cyclodextrin 500 μL Saline)
Injection Formulation 6: DMSO : PEG300 : castor oil : Saline = 5 : 10 : 20 : 65 (i.e. 50 μL DMSO 100 μLPEG300 200 μL castor oil 650 μL Saline)
Injection Formulation 7: Ethanol : Cremophor : Saline = 10: 10 : 80 (i.e. 100 μL Ethanol 100 μL Cremophor 800 μL Saline)
Injection Formulation 8: Dissolve in Cremophor/Ethanol (50 : 50), then diluted by Saline
Injection Formulation 9: EtOH : Corn oil = 10 : 90 (i.e. 100 μL EtOH 900 μL Corn oil)
Injection Formulation 10: EtOH : PEG300Tween 80 : Saline = 10 : 40 : 5 : 45 (i.e. 100 μL EtOH 400 μLPEG300 50 μL Tween 80 450 μL Saline)


Oral Formulations
Oral Formulation 1: Suspend in 0.5% CMC Na (carboxymethylcellulose sodium)
Oral Formulation 2: Suspend in 0.5% Carboxymethyl cellulose
Example: Take the Oral Formulation 1 (Suspend in 0.5% CMC Na) as an example, if 100 mL of 2.5 mg/mL working solution is to be prepared, you can first prepare 0.5% CMC Na solution by measuring 0.5 g CMC Na and dissolve it in 100 mL ddH2O to obtain a clear solution; then add 250 mg of the product to 100 mL 0.5% CMC Na solution, to make the suspension solution (2.5 mg/mL, ready for use in animals).
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Oral Formulation 3: Dissolved in PEG400
Oral Formulation 4: Suspend in 0.2% Carboxymethyl cellulose
Oral Formulation 5: Dissolve in 0.25% Tween 80 and 0.5% Carboxymethyl cellulose
Oral Formulation 6: Mixing with food powders


Note: Please be aware that the above formulations are for reference only. InvivoChem strongly recommends customers to read literature methods/protocols carefully before determining which formulation you should use for in vivo studies, as different compounds have different solubility properties and have to be formulated differently.

 (Please use freshly prepared in vivo formulations for optimal results.)
Preparing Stock Solutions 1 mg 5 mg 10 mg
1 mM 3.1522 mL 15.7609 mL 31.5219 mL
5 mM 0.6304 mL 3.1522 mL 6.3044 mL
10 mM 0.3152 mL 1.5761 mL 3.1522 mL

*Note: Please select an appropriate solvent for the preparation of stock solution based on your experiment needs. For most products, DMSO can be used for preparing stock solutions (e.g. 5 mM, 10 mM, or 20 mM concentration); some products with high aqueous solubility may be dissolved in water directly. Solubility information is available at the above Solubility Data section. Once the stock solution is prepared, aliquot it to routine usage volumes and store at -20°C or -80°C. Avoid repeated freeze and thaw cycles.

Calculator

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An example of molarity calculation using the molarity calculator is shown below:
What is the mass of compound required to make a 10 mM stock solution in 5 ml of DMSO given that the molecular weight of the compound is 350.26 g/mol?
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  • The answer of 17.513 mg appears in the Mass box. In a similar way, you may calculate the volume and concentration.

Dilution Calculator allows you to calculate how to dilute a stock solution of known concentrations. For example, you may Enter C1, C2 & V2 to calculate V1, as detailed below:

What volume of a given 10 mM stock solution is required to make 25 ml of a 25 μM solution?
Using the equation C1V1 = C2V2, where C1=10 mM, C2=25 μM, V2=25 ml and V1 is the unknown:
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  • The answer of 62.5 μL (0.1 ml) appears in the Volume (Start) box
g/mol

Molecular Weight Calculator allows you to calculate the molar mass and elemental composition of a compound, as detailed below:

Note: Chemical formula is case sensitive: C12H18N3O4  c12h18n3o4
Instructions to calculate molar mass (molecular weight) of a chemical compound:
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Definitions of molecular mass, molecular weight, molar mass and molar weight:
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  • Molar mass (molar weight) is the mass of one mole of a substance and is expressed in g/mol.
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In vivo Formulation Calculator (Clear solution)
Step 1: Enter information below (Recommended: An additional animal to make allowance for loss during the experiment)
Step 2: Enter in vivo formulation (This is only a calculator, not the exact formulation for a specific product. Please contact us first if there is no in vivo formulation in the solubility section.)
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Calculation results

Working concentration mg/mL;

Method for preparing DMSO stock solution mg drug pre-dissolved in μL DMSO (stock solution concentration mg/mL). Please contact us first if the concentration exceeds the DMSO solubility of the batch of drug.

Method for preparing in vivo formulation:Take μL DMSO stock solution, next add μL PEG300, mix and clarify, next addμL Tween 80, mix and clarify, next add μL ddH2O,mix and clarify.

(1) Please be sure that the solution is clear before the addition of next solvent. Dissolution methods like vortex, ultrasound or warming and heat may be used to aid dissolving.
             (2) Be sure to add the solvent(s) in order.

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