Tetraethylammonium acetate tetrahydrate
Tetraethylammonium acetate tetrahydrate (CAS 67533-12-4) is a chemical compound with the linear formula (C2H5)4N(OCOCH3) · 4H2O and a molecular weight of 261.36. It is a solid substance, often supplied in a purum grade with an assay of ≥99.0% (NT). This compound finds applications as a building block in organic synthesis, as a phase transfer catalyst, and in the development of ionic liquids.

Organic Synthesis
Tetraethylammonium acetate tetrahydrate serves as a versatile building block and reagent in various organic synthesis pathways. Its properties make it useful for introducing specific functionalities or facilitating complex molecular constructions.
Phase Transfer Catalysis
As a quaternary ammonium salt, this compound can act as a phase transfer catalyst, enabling reactions between reactants located in different immiscible phases. This can lead to improved reaction rates and yields.
Ionic Liquids Research
The structure of tetraethylammonium acetate tetrahydrate makes it a potential precursor or component in the design and synthesis of novel ionic liquids. These materials have applications in catalysis, electrochemistry, and separations.
| Molecular weight | 261.36 |
|---|---|
| Linear formula | (C2H5)4N(OCOCH3) · 4H2O |
| Assay | ≥99.0% (NT) |
| Grade | purum |
| Melting point | 42-44 °C42-46 °C(lit.) |

Hazard statements
- H228Flammable solid
Precautionary statements
- P210Keep away from heat, sparks and open flames. No smoking
| Protective equipment | Eyeshields, full-face particle respirator type N100 (US), Gloves, respirator cartridge type N100 (US), type P1 (EN143) respirator filter, type P3 (EN 143) respirator cartridges |
|---|---|
| Flash point | 60 °C / 140 °F |
| Transport (UN / ADR) | UN 1325 4.1 / PGII |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | F |
| Risk statements (R) | 11 |
| Safety statements (S) | 16 |
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 Tetraethylammonium acetate tetrahydrate used for?
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Tetraethylammonium acetate tetrahydrate is used as a building block in organic synthesis, a phase transfer catalyst, and in research for ionic liquids.
What are the CAS number and formula for Tetraethylammonium acetate tetrahydrate?
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The CAS number is 67533-12-4 and the linear formula is (C2H5)4N(OCOCH3) · 4H2O.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Tetraethylammonium acetate tetrahydrate in purum grade with an assay of ≥99.0% (NT). We do not represent this product as USP, BP, or EP grade.
What are the primary safety concerns when handling this chemical?
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This compound is classified as flammable (H228). Appropriate personal protective equipment, including eyeshields, gloves, and suitable respiratory protection (e.g., N100 respirator), should be used. It has a flash point of 60 °C (140 °F).
How is Tetraethylammonium acetate tetrahydrate packed and exported?
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Tech Serve Solutions packs and exports chemicals according to international shipping regulations for hazardous materials, including UN 1325, 4.1/PGII classification.
How can I request a quote or sample?
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To request a quote or sample of Tetraethylammonium acetate tetrahydrate, please contact our sales department through the TSS website.
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