Desmethylastemizole
Based on 1 Customer Validation
Desmethylastemizole (O-Demethylastemizole) , a metabolite of Astemizole (HY-12532), is a β-hematin (βH) inhibitor. Desmethylastemizole has an antiplasmodium activity against P. falciparum with IC50 of 0.12, 0.11 and 0.06 μM for Pf3D7, PfDd2, and PfItG strains, respectively. Desmethylastemizole is also a Histamine H1 receptor antagonist. Desmethylastemizole significantly blocks hERG K+ channels and also inhibits histone-lysine N-methyltransferase EZH2 activity. Desmethylastemizole can be used for long QT syndrome and malaria research.
For research use only. We do not sell to patients.
- Purity : 97.04%
- CAS No.: 73736-50-2
- Formula: C27H29FN4O
- Molecular Weight:444.54
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Storage:
4°C, sealed storage, away from moisture and light
* In solvent : -80°C, 6 months; -20°C, 1 month (sealed storage, away from moisture and light)
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
- Protocols
- Purity & Documentation
- References
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Help & FAQs
Biological Activity
Description
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H1 Receptor |
Plasmodium falciparum sporozoites |
Chemical Information
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CAS No. 73736-50-2
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Appearance Solid
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Molecular Weight 444.54
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Formula C27H29FN4O
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Color White to off-white
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SMILES
FC(C=C1)=CC=C1CN2C3=CC=CC=C3N=C2NC4CCN(CCC5=CC=C(O)C=C5)CC4
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Synonyms
O-Demethylastemizole
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Shipping
Room temperature in continental US; may vary elsewhere.
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Storage
4°C, sealed storage, away from moisture and light
* In solvent : -80°C, 6 months; -20°C, 1 month (sealed storage, away from moisture and light)
Protocols
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Cell Cytotoxicity Assay
Cytotoxicity assays are usually based on the assessment of cell membrane damage, which can also be indirectly detected by measuring cell viability. Detection methods include MTT assay, CKK-8 assay, LDH assay and ATP assay, etc.
Purity & Documentation
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Data Sheet (272 KB)
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SDS (254 KB)
- English - EN (254 KB)
- Français - FR (254 KB)
- Deutsch - DE (254 KB)
- Norwegian - NO (254 KB)
- Español - ES (254 KB)
- Swedish - SV (254 KB)
- Italian - IT (254 KB)
- Korean - KR (254 KB)
- Portuguese - PT (254 KB)
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Handling Instructions (2659 KB)
References
[1]. Kamei C, Mio M, Izushi K, et al. Antiallergic effects of major metabolites of astemizole in rats and guinea pigs. Arzneimittelforschung. 1991;41(9):932-936. [Content Brief]
[2]. Kumar M, Okombo J, Mambwe D, et al. Multistage Antiplasmodium Activity of Astemizole Analogues and Inhibition of Hemozoin Formation as a Contributor to Their Mode of Action. ACS Infect Dis. 2019;5(2):303-315. [Content Brief]
[3]. Zhou Z, et al. Block of HERG potassium channels by the antihistamine astemizole and its metabolites desmethylastemizole and norastemizole. J Cardiovasc Electrophysiol. 1999 Jun;10(6):836-43. [Content Brief]
Calculators
Concentration (start) × Volume (start) = Concentration (final) × Volume (final)
Desmethylastemizole Related Classifications
HY-W516880 Related Classifications
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