Clemizole hydrochloride
Clemizole hydrochloride (CAS 1163-36-6), with the molecular formula C19H20ClN3 · HCl and a molecular weight of 362.30 g/mol, is a bioactive small molecule. It functions as an antagonist, particularly relevant in cell signaling and neuroscience research. This compound is valuable for studies involving histaminergic pathways and neurotransmission, making it a key reagent for researchers investigating these complex biological systems.
- IUPAC
- 1-p-Chlorobenzyl-2-(1-pyrrolidinyl)methylbenzimidazole hydrochloride
- Synonyms
- 1-p-Chlorobenzyl-2-(1-pyrrolidinyl)methylbenzimidazole hydrochloride

Histamine Receptor Research
Clemizole hydrochloride is employed as a research tool to investigate histamine receptors, particularly H1. It serves as an antagonist to study the physiological roles and signaling pathways mediated by these receptors in various biological systems.
Neuroscience Studies
As a compound impacting neurotransmission, Clemizole hydrochloride is utilised in neuroscience research. It aids in understanding the complex mechanisms of neurotransmitters and their receptors within the central nervous system.
Cell Biology Investigations
This chemical is applied in cell biology to explore cellular responses and signaling cascades. Its activity as a bioactive small molecule makes it useful for probing specific cellular pathways and functions.
| Molecular weight | 362.30 |
|---|---|
| Empirical formula | C19H20ClN3 · HCl |

Hazard statements
- H302Harmful if swallowed
| Protective equipment | dust mask type N95 (US), Eyeshields, Gloves |
|---|---|
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xn |
| Risk statements (R) | 22 |
| Safety statements (S) | 36 |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
| Gene Information | human ... HRH1(3269) |
|---|
Documentation
Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.
Supply & logistics
Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.
What is Clemizole hydrochloride used for?
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Clemizole hydrochloride is used in research for studying histamine receptors (especially H1), neuroscience, cell signaling, and neurotransmission. It acts as a bioactive small molecule and an antagonist.
What are the CAS number and formula for Clemizole hydrochloride?
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The CAS number for Clemizole hydrochloride is 1163-36-6, and its molecular formula is C19H20ClN3 · HCl.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Clemizole hydrochloride. The specific grade and purity are available upon request, and TSS does not represent this product as USP, BP, or EP grade unless explicitly stated.
What are the safety considerations when handling Clemizole hydrochloride?
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Clemizole hydrochloride is classified with GHS07 symbol and a 'Warning' signal word, carrying the hazard statement H302 (Harmful if swallowed). Appropriate personal protective equipment, including a dust mask (type N95 US), eyeshields, and gloves, should be used. Handle with care to avoid ingestion.
Is Clemizole hydrochloride suitable for export?
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Yes, Tech Serve Solutions, a global supplier and exporter, can provide Clemizole hydrochloride for export. Please contact us for export arrangements and inquiries.
How can I request a sample or quote for Clemizole hydrochloride?
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To request a sample or a quote for Clemizole hydrochloride, please contact our sales team through the provided channels on the Tech Serve Solutions website.
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