Trimethylphenylammonium bromide
Trimethylphenylammonium bromide (CAS 16056-11-4), with the linear formula (CH3)3N(Br)C6H5 and a molecular weight of 216.12 g/mol, is a quaternary ammonium salt. It is commonly employed in chemical synthesis, as a phase transfer catalyst, and as an indicator in analytical chemistry, particularly for metal titrations. This compound is supplied by Tech Serve Solutions for laboratory and industrial applications requiring high purity.
- IUPAC
- Phenyltrimethylammonium bromide
- Synonyms
- Phenyltrimethylammonium bromide

Chemical Synthesis
Trimethylphenylammonium bromide serves as a valuable reagent in various organic synthesis pathways, facilitating specific chemical transformations and reactions.
Phase Transfer Catalysis
As a quaternary ammonium salt, it functions effectively as a phase transfer catalyst, enabling reactions between reactants in immiscible phases.
Analytical Reagent
This compound is utilised in analytical chemistry, often as an indicator, particularly for the precise determination of metal ions through titration methods.
Research and Development
It is used in research laboratories for exploring new synthetic methodologies and chemical processes.
| Molecular weight | 216.12 |
|---|---|
| Linear formula | (CH3)3N(Br)C6H5 |
| Assay | 98% |
| Melting point | 215 °C (dec.)(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) | 26-37/39 |
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 Trimethylphenylammonium bromide used for?
+
Trimethylphenylammonium bromide is used in chemical synthesis, as a phase transfer catalyst, and as an indicator in analytical chemistry, especially for metal titrations.
What is the CAS number and formula for Trimethylphenylammonium bromide?
+
The CAS number is 16056-11-4 and the linear formula is (CH3)3N(Br)C6H5.
What grade and purity does Tech Serve Solutions supply?
+
Tech Serve Solutions supplies Trimethylphenylammonium bromide with an assay of 98%. We do not represent this product as USP, BP, or EP grade; it is supplied for laboratory and research purposes.
How should Trimethylphenylammonium bromide be handled safely?
+
Handle Trimethylphenylammonium bromide with appropriate personal protective equipment, including a dust mask (type N95), eyeshields, and gloves. Avoid breathing dust and ensure adequate ventilation. It is classified with warning signal word, with hazards including skin irritation (H315), serious eye irritation (H319), and respiratory irritation (H335).
How is Trimethylphenylammonium bromide packed, shipped, and exported?
+
Trimethylphenylammonium bromide is carefully packed to ensure integrity during transit. Tech Serve Solutions offers global export services for this chemical.
How can I request a sample or quote for Trimethylphenylammonium bromide?
+
To request a sample or a quote for Trimethylphenylammonium bromide, please contact our sales team through the website or by phone.
▶ 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