Tetraethylammonium p-toluenesulfonate
Tetraethylammonium p-toluenesulfonate (CAS 733-44-8) is a quaternary ammonium salt with a molecular weight of 301.44. This compound functions effectively as a phase transfer catalyst, facilitating reactions between immiscible phases. It is commonly employed in chemical synthesis for various organic transformations. Tech Serve Solutions supplies this reagent with an assay of 97%.
- IUPAC
- p-Toluenesulfonic acid tetraethylammonium salt
- Synonyms
- p-Toluenesulfonic acid tetraethylammonium salt

Phase Transfer Catalysis
As a quaternary ammonium salt, it excels in phase transfer catalysis, enabling reactions between reactants in different phases (e.g., aqueous and organic). This enhances reaction rates and allows for milder reaction conditions.
Organic Synthesis Reagent
This compound is utilized as a reagent in various organic synthesis pathways. Its structure allows it to participate in or mediate a range of chemical transformations.
Electrolyte Component
Quaternary ammonium salts can serve as components in electrolyte formulations, particularly in electrochemical applications where ionic conductivity is required.
| Molecular weight | 301.44 |
|---|---|
| Linear formula | (C2H5)4N(CH3C6H4SO3) |
| Assay | 97% |
| Melting point | 110-114 °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.
| Bulk Density | 0.480 g/cm3 |
|---|
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 p-toluenesulfonate used for?
+
Tetraethylammonium p-toluenesulfonate (CAS 733-44-8) is primarily used as a phase transfer catalyst and a reagent in organic synthesis.
What is the CAS number and formula for Tetraethylammonium p-toluenesulfonate?
+
The CAS number is 733-44-8, and the linear formula is (C2H5)4N(CH3C6H4SO3).
What grade and purity does Tech Serve Solutions supply?
+
Tech Serve Solutions supplies Tetraethylammonium p-toluenesulfonate with an assay of 97%. We do not represent this product as meeting USP, BP, or EP pharmacopoeia standards.
How should Tetraethylammonium p-toluenesulfonate be handled safely?
+
Handle with appropriate personal protective equipment, including a dust mask type N95 (US), eyeshields, and gloves. Avoid breathing dust, and ensure good ventilation. This compound is classified as a Warning with hazards H315 (causes skin irritation), H319 (causes serious eye irritation), and H335 (may cause respiratory irritation).
Is Tetraethylammonium p-toluenesulfonate a controlled substance?
+
Based on the provided data, there is no indication that Tetraethylammonium p-toluenesulfonate is a controlled substance.
How is Tetraethylammonium p-toluenesulfonate packed and shipped?
+
This product is typically packed in suitable containers for chemical transport and exported globally by Tech Serve Solutions.
How can I request a sample or quote for Tetraethylammonium p-toluenesulfonate?
+
Please contact Tech Serve Solutions directly through our website or sales department to request a sample or a quotation.
▶ Related products

1-(2-Fluorobenzyl)piperazine
C11H15FN2
Chemical Synthesis
1-(2-Fluorophenyl)biguanide hydrochloride
Chemical Synthesis

1-(2-Fluorophenyl)cyclopropanecarboxylic acid
C10H9FO2
Chemical Synthesis
1-(2-Fluorophenyl)piperazine
C10H13FN2
Chemical Synthesis
1-(2-Fluorophenyl)piperazine monohydrochloride
C10H13FN2 · HCl
Chemical Synthesis
1-(2-Furoyl)-1H-benzotriazole
C11H7N3O2
Chemical Synthesis
1-(2-Furoyl)piperazine
C9H12N2O2
Chemical Synthesis
1-(2-Hydroxy-5-methylphenyl)-3-phenyl-1,3-propanedione
Chemical Synthesis
▶ Explore more

3-Methyl-1,5-di-p-tolyl-1,4-pentazadiene
Chemical Synthesis

3-Methyl-1,5-pentanediol
Chemical Synthesis

3-Methyl-1-(2-methylphenyl)-1H-pyrazol-5-amine
C11H13N3
Chemical Synthesis
3-Methyl-1-(3′-sulfoamidophenyl)-5-pyrazolone
C10H11N3O3S
Chemical Synthesis