Quinine hydrobromide
Quinine hydrobromide (CAS 549-49-5), with the formula C20H24N2O2 · HBr and a molecular weight of 405.33, is a chemical compound utilised in biological research. It functions as a modulator of ion channels, specifically impacting potassium channels. This compound is primarily employed in studies related to cell biology, neuroscience, and the investigation of voltage-gated ion channels. Its well-defined properties make it a valuable reagent for electrophysiology and cellular signalling research.

Ion Channel Modulation
Quinine hydrobromide is extensively used as a tool to study the function of various ion channels. It is particularly recognised for its ability to block potassium channels, aiding researchers in dissecting ion channel physiology and pharmacology.
Cell Signaling Research
In cell signalling studies, this compound helps elucidate pathways involving ion transport. Its specific effects on ion channels provide insights into cellular responses and regulatory mechanisms.
Neuroscience Investigations
Researchers in neuroscience utilise quinine hydrobromide to investigate the role of specific ion channels in neuronal function and excitability. Its application aids in understanding neural signalling processes.
Cell Biology Studies
As a reagent in cell biology, quinine hydrobromide contributes to the understanding of cellular processes where ion flux plays a critical role. It is applied in experiments aimed at characterising membrane transport and cellular responses.
| Molecular weight | 405.33 |
|---|---|
| Empirical formula | C20H24N2O2 · HBr |


Hazard statements
- H302Harmful if swallowed
- H312Harmful in contact with skin
- H315Causes skin irritation
- H317May cause an allergic skin reaction
- H319Causes serious eye irritation
- H332Harmful if inhaled
- H334May cause allergy or asthma symptoms if inhaled
- H335May cause respiratory irritation
Precautionary statements
- P261Avoid breathing dust, fume, gas or vapours
- P280Wear protective gloves, clothing and eye/face protection
- P305IF IN EYES
- P342
| Protective equipment | dust mask type N95 (US), Eyeshields, Faceshields, Gloves |
|---|---|
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xn |
| Risk statements (R) | 20/21/22-36/37/38-42/43 |
| Safety statements (S) | 26-36 |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
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 Quinine hydrobromide used for?
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Quinine hydrobromide (CAS 549-49-5) is used in research for its properties as a potassium channel blocker and modulator. It is applied in cell biology, cell signalling, neuroscience, and ion channel studies, particularly those involving voltage-gated ion channels.
What is the CAS number and chemical formula for Quinine hydrobromide?
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The CAS number for Quinine hydrobromide is 549-49-5, and its chemical formula is C20H24N2O2 · HBr.
What grade and purity does Tech Serve Solutions supply for Quinine hydrobromide?
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Tech Serve Solutions supplies Quinine hydrobromide for research purposes. The specific grade and purity are detailed in the product's specification sheet. TSS does not represent this product as USP, BP, or EP grade.
How should Quinine hydrobromide be handled safely?
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Quinine hydrobromide is classified as dangerous with hazards including H302, H312, H315, H317, H319, H332, H334, and H335. Appropriate personal protective equipment, such as a dust mask (type N95), eyeshields, faceshields, and gloves, must be worn. Handle in a well-ventilated area, avoiding dust formation and contact with skin, eyes, and clothing. Refer to the Safety Data Sheet for comprehensive handling instructions.
Is Quinine hydrobromide a controlled substance?
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The provided data does not indicate that Quinine hydrobromide (CAS 549-49-5) is a controlled substance. However, users should always comply with local regulations regarding chemical handling and procurement.
How is Quinine hydrobromide packed, shipped, and exported?
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Quinine hydrobromide is carefully packed to ensure product integrity during transit. Tech Serve Solutions, as a global supplier, manages the export of this chemical, adhering to all relevant international shipping and customs regulations.
How can I request a quote or sample for Quinine hydrobromide?
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To request a quote or a sample of Quinine hydrobromide, please contact the Tech Serve Solutions sales team through the website or by direct inquiry, providing your specific requirements and delivery details.
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