Clemizole

Catalog No.S6410 Batch:S641001

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Technical Data

Formula

C19H20ClN3

Molecular Weight 325.84 CAS No. 442-52-4
Solubility (25°C)* In vitro DMSO 65 mg/mL (199.48 mM)
* <1 mg/ml means slightly soluble or insoluble.
* Please note that Selleck tests the solubility of all compounds in-house, and the actual solubility may differ slightly from published values. This is normal and is due to slight batch-to-batch variations.
* Room temperature shipping (Stability testing shows this product can be shipped without any cooling measures.)

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Biological Activity

Description Clemizole, a first-generation histamine receptor (H1) antagonist, is a potent inhibitor of behavioural and electrographic seizure activity. It has a potential therapeutic effect on hepatitis C infection and also potently inhibits TRPC5 ion channels.
Targets
H1 receptor [1] TRPC5 [3]
In vitro

Clemizole efficiently blocks TRPC5 currents and Ca2+ entry in the low micromolar range (IC50 = 1.0-1.3 μM), as determined by fluorometric [Ca2+]I measurements and patch clamp recordings. Based on fluorometric [Ca2+]i measurements, clemizole exhibits a 6-fold selectivity for TRPC5 over TRPC4β (IC50 = 6.4 μM), the closest structural relative of TRPC5 and an almost 10-fold selectivity over TRPC3 (IC50 = 9.1 μM) and TRPC6 (IC50 = 11.3 μM). TRPM3 and M8 as well as TRPV1, V2, V3 and V4 channels are only weakly affected by markedly higher clemizole concentrations. Clemizole is not only effective in blocking heterologously expressed TRPC5 homomers but also TRPC1:TRPC5 heteromers as well as native TRPC5-like currents in the U-87 glioblastoma cell line[3].

In vivo

Clemizole is rapidly metabolized in mice with a plasma half-life of <10 min (compared to 3.4 h in humans), limiting its evaluation in murine models[2].

Protocol (from reference)

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SHIPPING AND STORAGE
Selleck products are transported at room temperature. If you receive the product at room temperature, please rest assured, the Selleck Quality Inspection Department has conducted experiments to verify that the normal temperature placement of one month will not affect the biological activity of powder products. After collecting, please store the product according to the requirements described in the datasheet. Most Selleck products are stable under the recommended conditions.

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