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Clemizole hydrochloride

CAS No.
1163-36-6
Chemical Name:
Clemizole hydrochloride
Synonyms
p48;CS-1763;allercur;CLEMIZOLE HCL;allercurehydrochloride;LABOTEST-BB LT00453174;CLEMIZOLE HYDROCHLORIDE;Clemizole hydrochloride, >=98%;1-(P-CHLOROBENZYL)-2-(1-PYRROLIDINYLMETHYL)-BENZIMIDAZOL;1-(p-chlorobenzil)-2-pirrolidil-metil-benzimidazolocloridato
CBNumber:
CB0484200
Molecular Formula:
C19H21Cl2N3
Molecular Weight:
362.3
MDL Number:
MFCD00051435
MOL File:
1163-36-6.mol
MSDS File:
SDS
Last updated:2023-06-08 17:06:34

Clemizole hydrochloride Properties

Melting point 239-241°
storage temp. Inert atmosphere,2-8°C
solubility H2O: soluble2mg/mL, clear (warmed)
form powder
color white to beige
Water Solubility 16.84mg/L at 25℃
Merck 14,2346
InChIKey DNFMJYXRIMLMBZ-UHFFFAOYSA-N
LogP 1.99
CAS DataBase Reference 1163-36-6(CAS DataBase Reference)
FDA UNII 85W6I13D8M

SAFETY

Risk and Safety Statements

Symbol(GHS)  GHS hazard pictograms
GHS07
Signal word  Warning
Hazard statements  H302
Precautionary statements  P301+P312+P330
Hazard Codes  Xn
Risk Statements  22
Safety Statements  36
WGK Germany  3
RTECS  DD6730000
HS Code  2933.99.8290
NFPA 704
0
1 0

Clemizole hydrochloride price More Price(33)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich SML1447 Clemizole hydrochloride ≥98% (HPLC) 1163-36-6 5mg $60 2024-03-01 Buy
Sigma-Aldrich SML1447 Clemizole hydrochloride ≥98% (HPLC) 1163-36-6 25mg $403 2024-03-01 Buy
TCI Chemical C3468 Clemizole Hydrochloride >98.0%(HPLC) 1163-36-6 25mg $229 2024-03-01 Buy
TCI Chemical C3468 Clemizole Hydrochloride >98.0%(HPLC) 1163-36-6 100mg $630 2024-03-01 Buy
Cayman Chemical 17695 Clemizole (hydrochloride) ≥98% 1163-36-6 1mg $32 2024-03-01 Buy
Product number Packaging Price Buy
SML1447 5mg $60 Buy
SML1447 25mg $403 Buy
C3468 25mg $229 Buy
C3468 100mg $630 Buy
17695 1mg $32 Buy

Clemizole hydrochloride Chemical Properties,Uses,Production

Originator

Allercur,Roerig,US,1960

Uses

Clemizole Hydrochloride inhibits Hepatitis C RNA replication in cell culture through the suppression of the binding between the nonstructural protein 4B and the viral RNA genome with little toxicity for the host cell. Clemizole Hydrochloride is also a potent inhibitor of transient receptor potential channel TRPC5.

Uses

Clemizole is an antihistamine that antagonizes the histamine 1 receptor at high nanomolar concentrations. It less potently blocks transient receptor potential canonical channel 5 (TRPC5; IC50 = 1.0-1.3 μM), with at least 6-fold selectivity for TRPC5 over other TRP channels. Clemizole also has hepatitis C antiviral action through inhibition of NS4B function, showing synergy with boceprevir , and it inhibits seizures in a zebrafish model of Dravet Syndrome.

Definition

ChEBI: Clemizole hydrochloride is a member of benzimidazoles.

Manufacturing Process

From 13.1 g of N-p-chlorobenzyl-2-nitroaniline (MP 110°C, obtained in the form of orange-red needles, from o-nitrochlorobenzene and pchlorobenzylamine by reaction for 3 hours at 150°C) by reduction with Raneynickel and hydrogen, in which reaction the substance may be suspended in methanol or dissolved in methanol-ethyl acetate at normal pressure and at about 40°C with combination of the theoretical quantity of hydrogen, 12.2 g are obtained of o-amino-N-p-chlorobenzylaniline, which after recrystallization from aqueous methanol has a MP of 90°C.
8 g of o-amino-N-p-chlorobenzylaniline and 2.8 g of pyridine are dissolved in dry ether and reacted with an ethereal solution of 3.9 g of chloracetyl chloride with cooling in a mixture of ice and common salt. 8 g of N-p-chlorobenzyl-N'- chloracetyl-o-phenylene diamine are obtained which can be worked up in the form of the crude product and, in the slightly colored form, has a MP of 130°C.
7.6 g of this compound are boiled with 3.9 g of pyrrolidine in 70 cc of toluene for some hours under reflux. After extraction by shaking with water and treatment with hydrochloric acid the hydrochloride is produced of N-pchlorobenzyl-N'-pyrrolidylacetyl-o-phenylene diamine together with some 1-pchlorobenzyl-2-N-pyrrolidylmethyl-benzimidazole. The former, after recrystallization from butanol, melts with foaming at 205°C, the latter, after recrystallization from butanol melts at 239°C to 241°C, and is in the form of white microscopic rods. Boiling in nitrobenzene converts the former compound into the latter.

Therapeutic Function

Antihistaminic

Biological Activity

(ns4b)the ns4b protein is a key player in hcv replication. disrupting ns4b function thus represents an attractive new anti-hcv strategy. combining clemizole with other anti-hcv agents could increase the antiviral effect achieved with 1 active drug alone and decrease emergence of viral resistance.

in vitro

although significant, clemizole’s antiviral effect was moderate (50% effective concentration of 8 mm against a hcv genotype 2a clone). clemizole’s antiviral effect was highly synergistic with the hcv protease inhibitors vx950 and sch503034, without toxicity. in contrast, clemizole combinations with either interferon, ribavirin, or the nucleoside (nm283) and nonnucleoside (hcv796) hcv polymerase inhibitors were additive [1].

in vivo

clemizole had an unexpectedly short plasma half-life; it was very rapidly bio-transformed into a glucuronide (m14) and a dealkylated metabolite (m12) and into a variety of lesser metabolites in c57bl/6j mice [2].

IC 50

8 mm

References

[1] einav s, sobol hd, gehrig e, glenn js. the hepatitis c virus (hcv) ns4b rna binding inhibitor clemizole is highly synergistic with hcv protease inhibitors. j infect dis. 2010;202(1):65-74.
[2] nishimura t, hu y, wu m, pham e, suemizu h, elazar m, liu m, idilman r, yurdaydin c, angus p, stedman c, murphy b, glenn j, nakamura m, nomura t, chen y, zheng m, fitch wl, peltz g. using chimeric mice with humanized livers to predict human drug metabolism and a drug-drug interaction. j pharmacol exp ther. 2013;344(2):388-96. doi: 10.1124/jpet.112.198697. epub 2012 nov 8.

Clemizole hydrochloride Preparation Products And Raw materials

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View Lastest Price from Clemizole hydrochloride manufacturers

Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
Clemizole hydrochloride pictures 2021-08-12 Clemizole hydrochloride
1163-36-6
US $15.00-10.00 / KG 1KG 99%+ HPLC Monthly supply of 1 ton Zhuozhou Wenxi import and Export Co., Ltd
Clemizole hydrochloride pictures 2019-09-06 Clemizole hydrochloride
1163-36-6
US $1.00 / KG 1KG 98% 20kg Career Henan Chemical Co

Clemizole hydrochloride Spectrum

allercur allercurehydrochloride p48 1-P-CHLOROBENZYL-2-[1-PYRROLIDINYL]-METHYLBENZIMIDAZOLE HYDROCHLORIDE 1-[(4-Chlorophenyl)methyl]-2-(pyrrolidin-1-ylmethyl)benzoimidazole hydrochloride CLEMIZOLE HCL CLEMIZOLE HYDROCHLORIDE LABOTEST-BB LT00453174 1-(4-Chlorophenyl)methyl)-2-(1-pyrrolidinylmethyl)-(1H)-benzimidazoleHCl 1-(P-CHLOROBENZYL)-2-(1-PYRROLIDINYLMETHYL)-BENZIMIDAZOL 1H-BenziMidazole,1-[(4-chlorophenyl)Methyl]-2-(1-pyrrolidinylMethyl)-, hydrochloride (1:1) 1-[(4-Chlorophenyl)methyl]-2-(pyrrolidin-1-ylmethyl)benzoimidazole hydrochloride Clemizole HCl Clemizole hydrochloride 1-[(4-Chlorophenyl)methyl]-2-(pyrrolidin-1-ylmethyl)benzoimidazole hydrochloride Clemizole hydrochloride, >=98% 1-p-chlorobenzyl-pyrrolidyl-methylene-benzimidazolehydrochloride 1-(p-chlorobenzil)-2-pirrolidil-metil-benzimidazolocloridato 1-(p-chlorobenzyl)-2-(1-pyrrolidinylmethyl)-benzimidazolmonohydrochloride 1-(4-Chlorobenzyl)-2-(pyrrolidin-1-ylmethyl)benzimidazole Hydrochloride CS-1763 1-[(4-chlorophenyl)methyl]-2-(pyrrolidin-1-ylmethyl)benzimidazole,hydrochloride 1-[(4-Chlorophenyl)methyl]-2-(1-pyrrolidinylmethyl)-1H-benzimidazole hydrochloride 1163-36-6 C19H21Cl2N3 C19H20ClN3HCl C19H20ClN3ClH Inhibitors