Benzyldimethyl(2-hydroxyethyl)ammonium chloride
Benzyldimethyl(2-hydroxyethyl)ammonium chloride (CAS 7221-40-1) is a quaternary ammonium compound with the molecular formula C6H5CH2N(Cl)(CH3)2CH2CH2OH and a molecular weight of 215.72 g/mol. This compound is recognised for its utility as a phase transfer catalyst and a reagent in various chemical synthesis applications. Its specific structure lends itself to facilitating reactions between immiscible phases, contributing to efficient synthetic processes.
- IUPAC
- Benzyl(2-hydroxyethyl)dimethylammonium chloride

Phase Transfer Catalysis
As a quaternary ammonium salt, Benzyldimethyl(2-hydroxyethyl)ammonium chloride functions effectively as a phase transfer catalyst. It aids in transferring anionic reactants from an aqueous phase to an organic phase, thereby increasing reaction rates and yields in organic synthesis.
Chemical Synthesis
This compound serves as a versatile reagent in organic synthesis. Its structure allows for participation in various transformations, making it a valuable building block or catalyst for creating more complex molecules in research and development settings.
Surfactant Properties
The amphiphilic nature of quaternary ammonium salts suggests potential applications as surfactants or in formulations requiring surface activity, though specific uses for this compound in this context are subject to further research.
| Molecular weight | 215.72 |
|---|---|
| Linear formula | C6H5CH2N(Cl)(CH3)2CH2CH2OH |
| Assay | ≥97.0% (AT) |
| Melting point | 75-78 °C |

Hazard statements
- H315Causes skin irritation
- H319Causes serious eye irritation
- H335May cause respiratory irritation
Precautionary statements
- P261Avoid breathing dust, fume, gas or vapours
- P305IF IN EYES
| Protective equipment | dust mask type N95 (US), Eyeshields, Gloves |
|---|---|
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xi |
| Risk statements (R) | 36/37/38 |
| 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 Benzyldimethyl(2-hydroxyethyl)ammonium chloride used for?
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Benzyldimethyl(2-hydroxyethyl)ammonium chloride is primarily used as a phase transfer catalyst and a reagent in chemical synthesis, facilitating reactions between immiscible phases.
What are the CAS number and molecular formula for Benzyldimethyl(2-hydroxyethyl)ammonium chloride?
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The CAS number is 7221-40-1 and the molecular formula is C6H5CH2N(Cl)(CH3)2CH2CH2OH.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Benzyldimethyl(2-hydroxyethyl)ammonium chloride with an assay of ≥97.0% (AT). This product is supplied for research and development or manufacturing purposes and is not represented as USP, BP, EP, or pharmaceutical grade.
How should Benzyldimethyl(2-hydroxyethyl)ammonium chloride be handled?
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Handle with appropriate personal protective equipment including a dust mask (type N95 US), eyeshields, and gloves. Avoid breathing dust. Ensure adequate ventilation. This compound is classified as causing skin irritation, serious eye irritation, and may cause respiratory irritation.
Is this chemical suitable for use in regulated applications?
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This product is intended for laboratory and industrial use. Its suitability for specific regulated applications, such as pharmaceutical manufacturing, depends on the user's adherence to all applicable regulations and may require further qualification.
How can I get a quote or request a sample?
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To request a quote or obtain a sample, please contact our sales team through the website or by calling our office. Specify the product name and CAS number (7221-40-1).
How is this chemical shipped?
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Tech Serve Solutions exports chemicals globally, adhering to all relevant shipping regulations. Specific packaging and shipping methods are determined based on the quantity, destination, and hazard classification of the product.
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