SCR7 pyrazine
Based on 8 publication(s) in Google Scholar
SCR7 pyrazine is a DNA ligase IV inhibitor that blocks nonhomologous end-joining (NHEJ) in a ligase IV-dependent manner. SCR7 pyrazine increases the efficiency of Cas9-mediated homology-directed repair (HDR). SCR7 pyrazine induces cell apoptosis and has anticancer activity.
For research use only. We do not sell to patients.
- Purity: 99.88%
- CAS No.: 14892-97-8
- Formula: C18H12N4OS
- Molecular Weight:332.38
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Storage:Powder -20°C, 3 years , 4°C, 2 years ; In solvent -80°C, 2 years , -20°C, 1 year
To place orders, for customer services and technical support, please contact: MedChemExpress USA
Tel: 609-228-6898 E-mail: [email protected] [email protected]
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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
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Apoptosis Compound Library
HY-L003
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Cell Cycle/DNA Damage Compound Library
HY-L004
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Anti-Cancer Compound Library
HY-L025
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Anti-Aging Compound Library
HY-L034
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Cell Death Library
HY-L162
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Bioactive Compound Library Max
HY-L181
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MCE Bioactive Compound Library
HY-L001V
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Bioactive Compound Library
HY-L001
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Non-Alcoholic Fatty Liver Disease (NAFLD) Compound Library
HY-L199
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High-Throughput Bioactive Compound Library
HY-L205
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High-Efficiency Gene Editing Compound Library
HY-L244
Publications Citing Use of MedChemExpress (MCE) SCR7 pyrazine
More- Nat Commun. 2025 Jul 15;16(1):6502. [Abstract]
- Trends Biotechnol. 2025 Aug 30:S0167-7799(25)00314-2. [Abstract]
- Trends Biotechnol. 2025 Apr 7:S0167-7799(25)00083-6. [Abstract]
- Sci Adv. 2025 Jul 11;11(28):eadw1720. [Abstract]
- Int J Mol Sci. 2025 May 3;26(9):4361. [Abstract]
- Int J Mol Sci. 2022 Jul 7;23(14):7518. [Abstract]
- Virology. 2025 May:606:110504. [Abstract]
- University of Georgia. 2025.
Customer Validation & Images
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Cell Proliferation/Viability Assay
All DNA/RNA Synthesis Isoforms
More
Biological Activity
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DNA Ligase |
SCR7 pyrazine (20-100 μM; 24 hours; MCF7 cells) treatment interferes with NHEJ in cells, leading to accumulation of unrepaired double-strand breaks (DSBs)[1].
SCR7 pyrazine treatment shows a dose-dependent decrease in cell proliferation with IC50 values of 40 μM, 34 μM, 44 μM, 8.5 μM, 120 μM, 10 μM and 50 μM for MCF7, A549, HeLa, T47D, A2780, HT1080 and Nalm6 cells, respectively[1].
In MCF7 cells, SCR7 pyrazine (20, 40 μM) treatment increases phosphorylation of ATM and activates p53, decreases MDM2, BCL2, resulting in activation of proapoptotic proteins, PUMA and BAX. And the shorter fragments of MCL1, PARP1, Caspase 3, and Caspase 9 cleavage are upregulated in a dose-dependent manner[1].
MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.
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Cell Line:MCF7 cells
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Concentration:20 μM, 40 μM, 100 μM
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Incubation Time:24 hours
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Result:Showed an increase in levels of gH2AX foci and protein.
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 injected with breast adenocarcinoma cells[1]
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Dosage:10 mg/kg
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Administration:Intramuscular injection; on alternate days (0, 2, 4, 6, 8, and 10)
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Result:Significantly reduced breast adenocarcinoma-induced tumor and increased lifespan.
Chemical Information
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CAS No. 14892-97-8
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Appearance Solid
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Molecular Weight 332.38
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Formula C18H12N4OS
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Color Light yellow to yellow
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SMILES
O=C1NC(NC2=NC(C3=CC=CC=C3)=C(C4=CC=CC=C4)N=C12)=S
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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 2 years -20°C 1 year
Publications (8)
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Journal Impact Factor
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Most Recent
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Nat Commun
2025 Jul 15;16(1):6502. PMID: 40664653 -
Trends Biotechnol
Highly efficient prime editors for mammalian genome editing based on porcine retrovirus reverse transcriptase. [Abstract]2025 Aug 30:S0167-7799(25)00314-2. PMID: 40885667 -
Trends Biotechnol
Long-offset paired nicking-based efficient and precise strategy for in vivo targeted insertion. [Abstract]2025 Apr 7:S0167-7799(25)00083-6. PMID: 40199626 -
Sci Adv
BRD4770 protects against DOX-induced cardiotoxicity by inhibiting apoptosis and ferroptosis. [Abstract]2025 Jul 11;11(28):eadw1720. PMID: 40644536
SCR7 pyrazine purchased from MedChemExpress. Usage Cited in: Sci Adv. 2025 Jul 11;11(28):eadw1720. [Abstract]
The effects of J147 (5 μM), BRD4770 (5 μM), SCR7 pyrazine (5 μM), SMI-4a (5 μM), daphnetin (5 μM), BG45 (5 μM), and entinostat (5 μM) on cell viability in H9C2 cells after 24 hours of DOX or erastin treatment.
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Int J Mol Sci
CRISPR/Cas9 Ribonucleoprotein Delivery Enhanced by Lipo-Xenopeptide Carriers and Homology-Directed Repair Modulators: Insights from Reporter Cell Lines. [Abstract]2025 May 3;26(9):4361. PMID: 40362595 -
Int J Mol Sci
Chloroquine-Induced DNA Damage Synergizes with Nonhomologous End Joining Inhibition to Cause Ovarian Cancer Cell Cytotoxicity. [Abstract]2022 Jul 7;23(14):7518. PMID: 35886866 -
Virology
ISG15 depletion enhances oHSV-1 replication and antitumor efficacy in oral squamous cell carcinoma. [Abstract]2025 May:606:110504. PMID: 40121989 -
Solvent & Solubility
DMSO : 100 mg/mL (300.86 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, 2 years; -20°C, 1 year. When stored at -80°C, please use it within 2 years. When stored at -20°C, please use it within 1 year.
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, 2 years; -20°C, 1 year. When stored at -80°C, please use it within 2 years. When stored at -20°C, please use it within 1 year.
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 (7.52 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 (7.52 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 (280 KB)
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SDS (392 KB)
- English - EN (392 KB)
- Français - FR (392 KB)
- Deutsch - DE (392 KB)
- Norwegian - NO (392 KB)
- Español - ES (392 KB)
- Swedish - SV (392 KB)
- Italian - IT (392 KB)
- Korean - KR (392 KB)
- Portuguese - PT (392 KB)
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Handling Instructions (2659 KB)
References
[1]. Srivastava M, et al. An inhibitor of nonhomologous end-joining abrogates double-strand break repair and impedes cancer progression. Cell. 2012 Dec 21;151(7):1474-87. [Content Brief]
[2]. Lin C, et al. Increasing the Efficiency of CRISPR/Cas9-mediated Precise Genome Editing of HSV-1 Virus in Human Cells. Sci Rep. 2016 Oct 7;6:34531. [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, 2 years; -20°C, 1 year. When stored at -80°C, please use it within 2 years. When stored at -20°C, please use it within 1 year.
| Optional Solvent | Concentration Solvent Mass | 1 mg | 5 mg | 10 mg | 25 mg |
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| DMSO | 1 mM | 3.0086 mL | 15.0430 mL | 30.0860 mL | 75.2151 mL |
| 5 mM | 0.6017 mL | 3.0086 mL | 6.0172 mL | 15.0430 mL | |
| 10 mM | 0.3009 mL | 1.5043 mL | 3.0086 mL | 7.5215 mL | |
| 15 mM | 0.2006 mL | 1.0029 mL | 2.0057 mL | 5.0143 mL | |
| 20 mM | 0.1504 mL | 0.7522 mL | 1.5043 mL | 3.7608 mL | |
| 25 mM | 0.1203 mL | 0.6017 mL | 1.2034 mL | 3.0086 mL | |
| 30 mM | 0.1003 mL | 0.5014 mL | 1.0029 mL | 2.5072 mL | |
| 40 mM | 0.0752 mL | 0.3761 mL | 0.7522 mL | 1.8804 mL | |
| 50 mM | 0.0602 mL | 0.3009 mL | 0.6017 mL | 1.5043 mL | |
| 60 mM | 0.0501 mL | 0.2507 mL | 0.5014 mL | 1.2536 mL | |
| 80 mM | 0.0376 mL | 0.1880 mL | 0.3761 mL | 0.9402 mL | |
| 100 mM | 0.0301 mL | 0.1504 mL | 0.3009 mL | 0.7522 mL |
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