SCH79797
Based on 5 publication(s) in Google Scholar
SCH79797 is a highly potent, selective nonpeptide protease activated receptor 1 (PAR1) antagonist. SCH79797 inhibits binding of a high-affinity thrombin receptor-activating peptide to PAR1 with an IC50 of 70 nM and a Ki of 35 nM. SCH79797 inhibits thrombin-induced platelet aggregation with an IC50 of 3 μM. SCH79797 has antiproliferative and pro-apoptotic effects, and limits myocardial ischemia/reperfusion injury in rat hearts. SCH79797 also potently prevents PAR1 activation in vascular smooth muscle cells, endothelial cells, and astrocytes.
For research use only. We do not sell to patients.
- Purity: 99.74%
- CAS No.: 245520-69-8
- Formula: C23H25N5
- Molecular Weight:371.48
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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) SCH79797
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Biological Activity
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PAR1 70 nM (IC50) |
PAR1 35 nM (Ki) |
SCH79797 inhibits high-affinity thrombin receptor-activating peptide ([3H]haTRAP) binding in a competitive manner. SCH79797 inhibits α-thrombin- and haTRAP-induced aggregation of human platelets, but does not inhibit human platelet aggregation induced by the tethered ligand agonist for protease-activated receptor-4 (PAR-4), γ-thrombin, ADP, or collagen. Thrombin produces transient increases in cytosolic free Ca2+ concentration ([Ca2+]i) in hCASMC. SCH79797 effectively inhibits this increase in [Ca2+]i. SCH79797 completely inhibits Thrombin- and TK-stimulated [3H]thymidine incorporation[1].
SCH79797 is able to interfere with the growth of several human and mouse cell lines, in a concentration-dependent manner. The ED50 for growth inhibition iss 75 nM, 81 nM and 116 nM for NIH 3T3, HEK 293 and A375 cells, respectively. In NIH 3T3 cells, SCH79797 inhibits serum-stimulated activation of p44/p42 mitogen-activated protein kinases (MAPK) at low concentrations and induces apoptosis at higher concentrations[2].
MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.
MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.
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Animal Model:Male Sprague Dawley rats (8 weeks of age) with myocardial I/R injury[4]
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Dosage:2.5 μg/kg, 10 μg/kg, 25 μg/kg, 50 μg/kg, 100 μg/kg, and 250 μg/kg
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Administration:Intravenous injection
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Result:Immediately before or during ischemia reduced myocardial necrosis following I/R in the intact rat heart.
Chemical Information
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CAS No. 245520-69-8
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Appearance Solid
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Molecular Weight 371.48
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Formula C23H25N5
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Color Light yellow to brown
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SMILES
NC1=NC(NC2CC2)=NC3=CC=C(N(CC4=CC=C(C(C)C)C=C4)C=C5)C5=C31
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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 (5)
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Journal Impact Factor
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Most Recent
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Exp Mol Med
Distribution and impact of p16INK4A+ senescent cells in elderly tissues: a focus on senescent immune cell and epithelial dysfunction. [Abstract]2024 Dec;56(12):2631-2641. PMID: 39617789 -
J Immunother Cancer
Unveiling the mechanisms of CEBPD-orchestrated TAM polarization through RGS2/PAR2 pathway and its impact on ICB efficacy in clear cell renal cell carcinoma. [Abstract]2025 Jul 13;13(7):e010898. PMID: 40659446 -
iScience
Noncanonical protease-activated receptor 1 regulates lymphatic differentiation in zebrafish. [Abstract]2021 Oct 30;24(11):103386. PMID: 34816109 -
J Appl Toxicol
Deinagkistrodon acutus Venom Promotes Apoptosis of Vascular Tissue Cells Through PAR1, Leading To Mesenteric Vascular Damage. [Abstract]2025 Sep 1. PMID: 40891103 -
Solvent & Solubility
DMSO : 50 mg/mL (134.60 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 (6.73 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 (6.73 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 (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
[1]. Ahn HS, et al. Inhibition of cellular action of thrombin by N3-cyclopropyl-7-[[4-(1-methylethyl)phenyl]methyl]-7H-pyrrolo[3, 2-f]quinazoline-1,3-diamine (SCH 79797), a nonpeptide thrombin receptor antagonist. Biochem Pharmacol. 2000 Nov 15;60(10):1425-34. [Content Brief]
[2]. Di Serio C, et al. Protease-activated receptor 1-selective antagonist SCH79797 inhibits cell proliferation and induces apoptosis by a protease-activated receptor 1-independent mechanism. Basic Clin Pharmacol Toxicol. 2007 Jul;101(1):63-9. [Content Brief]
[3]. Sokolova E, et al. A novel therapeutic target in various lung diseases: airway proteases and protease-activated receptors. Pharmacol Ther. 2007 Jul;115(1):70-83. [Content Brief]
[4]. Strande JL, et al. SCH 79797, a selective PAR1 antagonist, limits myocardial ischemia/reperfusion injury in rat hearts. Basic Res Cardiol. 2007 Jul;102(4):350-8. [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. 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 | 2.6919 mL | 13.4597 mL | 26.9193 mL | 67.2984 mL |
| 5 mM | 0.5384 mL | 2.6919 mL | 5.3839 mL | 13.4597 mL | |
| 10 mM | 0.2692 mL | 1.3460 mL | 2.6919 mL | 6.7298 mL | |
| 15 mM | 0.1795 mL | 0.8973 mL | 1.7946 mL | 4.4866 mL | |
| 20 mM | 0.1346 mL | 0.6730 mL | 1.3460 mL | 3.3649 mL | |
| 25 mM | 0.1077 mL | 0.5384 mL | 1.0768 mL | 2.6919 mL | |
| 30 mM | 0.0897 mL | 0.4487 mL | 0.8973 mL | 2.2433 mL | |
| 40 mM | 0.0673 mL | 0.3365 mL | 0.6730 mL | 1.6825 mL | |
| 50 mM | 0.0538 mL | 0.2692 mL | 0.5384 mL | 1.3460 mL | |
| 60 mM | 0.0449 mL | 0.2243 mL | 0.4487 mL | 1.1216 mL | |
| 80 mM | 0.0336 mL | 0.1682 mL | 0.3365 mL | 0.8412 mL | |
| 100 mM | 0.0269 mL | 0.1346 mL | 0.2692 mL | 0.6730 mL |