Atopaxar hydrobromide
Atopaxar (E5555) hydrobromide is a potent, orally active, selective and reversible thrombin receptor protease-activated receptor-1 (PAR-1) antagonist. Atopaxar hydrobromide, an antiplatelet agent, interferes with platelet signaling. Atopaxar hydrobromide can be used for the research of atherothrombotic disease.
For research use only. We do not sell to patients.
- CAS No.: 474550-69-1
- Formula: C29H39BrFN3O5
- Molecular Weight:608.54
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Storage:
Please store the product under the recommended conditions in the Certificate of Analysis.
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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
Biological Activity
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PAR1 5.1 nM (IC50) |
Atopaxar hydrobromide (0.0001-10 μM; 1h) inhibits haTRAP (high-affinity thrombin receptor activating peptide) binding to PAR-1 on human platelet membranes in a concentration-dependent manner, with an IC50 of 0.019 μM[2].
Atopaxar hydrobromide shows potent inhibitory effects on human platelet aggregation induced by thrombin and TRAP with IC50s of 0.064 and 0.031 μM, respectively, but has no effect on platelet aggregation induced by either ADP or collagen[2].
Atopaxar hydrobromide shows potent and selective inhibitory effects on guinea pig platelet aggregation induced by thrombin and TRAP with IC50s of 0.13 and 0.097 μM, respectively[2].
MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.
Atopaxar hydrobromide does not prolong bleeding time in guinea pigs at the highest tested dosage of 1000 mg/kg[2].
MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.
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Animal Model:Guinea pigs, PIT model[2]
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Dosage:Oral administration
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Administration:10 mg/kg, 30 mg/kg, 100 mg/kg
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Result:Prolonged the time to occlusion by 1.8-fold and 2.4-fold at 30 mg/kg and 100 mg/kg, respectively, compared with controls.
Chemical Information
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CAS No. 474550-69-1
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Molecular Weight 608.54
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Formula C29H39BrFN3O5
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SMILES
COC1=C(N2CCOCC2)C=C(C(CN(CC3=C4C(F)=C(OCC)C(OCC)=C3)C4=N)=O)C=C1C(C)(C)C.[H]Br
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Synonyms
E5555 hydrobromide; ER 172594-06
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Shipping
Room temperature in continental US; may vary elsewhere.
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Storage
Please store the product under the recommended conditions in the Certificate of Analysis.
Solvent & Solubility
The following protocol is derived from the literature and is for reference only. It is recommended to first try a small sample.
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.
Working solution concentration: 0.22 mg/mL
Purity & Documentation
References
[1]. Chris Dockendorff, et al. Discovery of 1,3-Diaminobenzenes as Selective Inhibitors of Platelet Activation at the PAR1 Receptor. ACS Med Chem Lett. 2012 Mar 8; 3(3): 232–237. [Content Brief]
[2]. Motoji Kogushi, et al. The novel and orally active thrombin receptor antagonist E5555 (Atopaxar) inhibits arterial thrombosis without affecting bleeding time in guinea pigs. Eur J Pharmacol. 2011 Apr 25;657(1-3):131-7. [Content Brief]
[3]. Sun J, et al., Discovery and evaluation of Atopaxar hydrobromide, a novel JAK1 and JAK2 inhibitor, selectively induces apoptosis of cancer cells with constitutively activated STAT3. Invest New Drugs. 2020 Aug;38(4):1003-1011. [Content Brief]
Calculators
Concentration (start) × Volume (start) = Concentration (final) × Volume (final)
Atopaxar hydrobromide Related Classifications
HY-18200B Related Classifications
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