Cetyltrimethylammonium chloride solution
Cetyltrimethylammonium chloride solution (CAS: 112-02-7), with the linear formula CH3(CH2)15N(Cl)(CH3)3 and a molecular weight of 320.00, is a quaternary ammonium compound supplied by TSS. It is commonly utilised as a phase transfer catalyst and a synthetic reagent in chemical synthesis. This solution offers a convenient and effective form for various laboratory and industrial applications requiring its specific chemical properties.
- IUPAC
- Hexadecyltrimethylammonium chloride solution

Phase Transfer Catalysis
Cetyltrimethylammonium chloride acts as an effective phase transfer catalyst, facilitating reactions between reactants located in different immiscible phases. Its amphiphilic nature allows it to shuttle ions across phase boundaries, enhancing reaction rates and yields in organic synthesis.
Chemical Synthesis
As a versatile synthetic reagent, this compound finds use in various organic transformations. It can be employed in the preparation of other chemical intermediates and final products, contributing to diverse synthetic pathways within the chemical industry.
Ammonium Salt Applications
Belonging to the class of ammonium salts, this solution can be incorporated into formulations or processes where its specific ionic and surfactant properties are beneficial. This includes applications in research and development settings.
| Molecular weight | 320.00 |
|---|---|
| Linear formula | CH3(CH2)15N(Cl)(CH3)3 |
| Assay | ≥98.0% (NT) |
| Density | 0.968 g/mL at 25 °C |
| Refractive index | n20/D 1.3778 |
| Concentration | 25 wt. % in H2O |
| Melting point | 232-237 °C |


Hazard statements
- H315Causes skin irritation
- H318Causes serious eye damage
- H400Very toxic to aquatic life
Precautionary statements
- P273Avoid release to the environment
- P280Wear protective gloves, clothing and eye/face protection
- P305IF IN EYES
| Protective equipment | Eyeshields, full-face respirator (US), Gloves, multi-purpose combination respirator cartridge (US), type ABEK (EN14387) respirator filter |
|---|---|
| Transport (UN / ADR) | UN 3082 9 / PGIII |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xi,N |
| Risk statements (R) | 38-41-50 |
| Safety statements (S) | 26-39-61 |
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 Cetyltrimethylammonium chloride solution used for?
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Cetyltrimethylammonium chloride solution (CAS: 112-02-7) is primarily used as a phase transfer catalyst and a synthetic reagent in chemical synthesis. It is also utilised in applications requiring ammonium salt properties.
What is the CAS number and formula for Cetyltrimethylammonium chloride solution?
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The CAS number for Cetyltrimethylammonium chloride solution is 112-02-7, and its linear formula is CH3(CH2)15N(Cl)(CH3)3.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Cetyltrimethylammonium chloride solution with an assay of ≥98.0% (NT). TSS does not represent this product as USP, BP, or EP grade.
How should Cetyltrimethylammonium chloride solution be handled?
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Cetyltrimethylammonium chloride solution is a dangerous substance. It causes skin irritation and serious eye damage and is very toxic to aquatic life. Use appropriate personal protective equipment, including eyeshields and gloves, and avoid release to the environment. Refer to the Safety Data Sheet for full handling instructions.
How is Cetyltrimethylammonium chloride solution packed and shipped?
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Cetyltrimethylammonium chloride solution is packed and shipped according to relevant regulations for hazardous materials. It is classified under UN 3082, 9 / PG III, indicating it is an environmentally hazardous substance, liquid, n.o.s.
How can I request a sample or quote?
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To request a sample or quote for Cetyltrimethylammonium chloride solution, please contact our sales team through the website or by phone, providing your contact details and the product CAS number (112-02-7).
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