3-Ethyl-5-(2-hydroxyethyl)-4-methylthiazolium bromide
3-Ethyl-5-(2-hydroxyethyl)-4-methylthiazolium bromide (CAS 54016-70-5) is a heterocyclic ammonium salt with a molecular weight of 252.17. This compound serves as a valuable reagent in chemical synthesis. Its properties make it useful as a phase transfer catalyst, facilitating reactions between immiscible phases. Tech Serve Solutions supplies this chemical with a minimum assay of 98%, suitable for various research and synthetic applications.

Phase Transfer Catalyst
This thiazolium bromide derivative can act as a phase transfer catalyst. It aids in transferring reactive anions from an aqueous phase to an organic phase, thereby increasing the reaction rate and yield in organic synthesis.
Chemical Synthesis
As a specialised heterocyclic ammonium salt, it finds application in various organic synthetic pathways. Its structure allows for participation in specific chemical transformations, contributing to the construction of complex molecules.
Research Reagent
This compound is utilised in research laboratories for exploring new synthetic methodologies and for the development of novel chemical entities. Its availability facilitates advanced chemical studies.
| Molecular weight | 252.17 |
|---|---|
| Empirical formula | C8H14BrNOS |
| Assay | ≥98% |
| Melting point | 82-87 °C(lit.) |

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 3-Ethyl-5-(2-hydroxyethyl)-4-methylthiazolium bromide used for?
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3-Ethyl-5-(2-hydroxyethyl)-4-methylthiazolium bromide is primarily used as a phase transfer catalyst and a reagent in chemical synthesis and research.
What is the CAS number and formula for this compound?
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The CAS number is 54016-70-5. The empirical formula (Hill notation) is C8H14BrNOS.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 3-Ethyl-5-(2-hydroxyethyl)-4-methylthiazolium bromide with an assay of ≥98%. We do not represent this product as USP, BP, EP or other pharmacopoeia grades unless explicitly stated.
How should this chemical be handled safely?
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This compound is a Warning irritant (H315, H319, H335). Handle with a dust mask (N95 type US), eyeshields, and gloves. Ensure good ventilation and avoid breathing dust. In case of contact, rinse cautiously with water for several minutes and seek medical advice if irritation persists.
Is this chemical suitable for export?
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Yes, Tech Serve Solutions is a specialist global supplier and exporter of fine chemicals and laboratory reagents, including 3-Ethyl-5-(2-hydroxyethyl)-4-methylthiazolium bromide.
How can I request a sample or a quote?
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To request a sample or a quote for 3-Ethyl-5-(2-hydroxyethyl)-4-methylthiazolium bromide, please contact our sales team through the website or by phone. Please include the product name and CAS number (54016-70-5) in your request.
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