(2-Chloroethyl)trimethylammonium chloride
(2-Chloroethyl)trimethylammonium chloride (CAS 999-81-5) is a quaternary ammonium salt with the linear formula (CH3)3N(Cl)CH2CH2Cl and a molecular weight of 158.07 g/mol. This compound serves as a valuable intermediate and reagent in chemical synthesis. Its properties make it suitable for applications in areas such as plant cell culture research and as a phase transfer catalyst, contributing to various synthetic processes.
- IUPAC
- Chlormequat chloride,Chlorocholine chloride,Choline dichloride
- Synonyms
- Chlormequat chlorideChlorocholine chlorideCholine dichloride

Chemical Synthesis
(2-Chloroethyl)trimethylammonium chloride acts as a versatile intermediate in organic synthesis. It can be employed in reactions requiring a quaternary ammonium moiety or as a precursor for further chemical modifications.
Plant Cell Culture
This compound is tested for suitability in plant cell culture, suggesting its use in research related to plant biology and biotechnology where specific growth conditions or regulatory effects are studied.
Phase Transfer Catalysis
As a quaternary ammonium salt, (2-Chloroethyl)trimethylammonium chloride can function as a phase transfer catalyst. This allows it to facilitate reactions between reactants in immiscible phases, enhancing reaction rates and yields.
| Molecular weight | 158.07 |
|---|---|
| Linear formula | (CH3)3N(Cl)CH2CH2Cl |
| Assay | 98% |
| Suitability | plant cell culture tested |
| Melting point | 239-243 °C (dec.)(lit.) |

Hazard statements
- H302Harmful if swallowed
- H312Harmful in contact with skin
Precautionary statements
- P280Wear protective gloves, clothing and eye/face protection
| Protective equipment | dust mask type N95 (US), Eyeshields, Faceshields, Gloves |
|---|---|
| Transport (UN / ADR) | UN 2811 6.1 / PGIII |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xn |
| Risk statements (R) | 21/22 |
| Safety statements (S) | 36/37 |
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 (2-Chloroethyl)trimethylammonium chloride used for?
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(2-Chloroethyl)trimethylammonium chloride is used as an intermediate and reagent in chemical synthesis, and it is tested for suitability in plant cell culture. It can also function as a phase transfer catalyst.
What is the CAS number and formula for (2-Chloroethyl)trimethylammonium chloride?
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The CAS number is 999-81-5 and the linear formula is (CH3)3N(Cl)CH2CH2Cl.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies (2-Chloroethyl)trimethylammonium chloride with an assay of 98%. This product is tested for suitability in plant cell culture. Tech Serve Solutions does not represent this product as USP, BP, or EP grade.
What are the primary safety hazards associated with this chemical?
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This compound is classified as harmful if swallowed (H302) and harmful in contact with skin (H312). Appropriate personal protective equipment, including a dust mask type N95 (US), eyeshields, faceshields, and gloves, should be worn when handling. It has a WGK rating of 3 in Germany.
How is this chemical packed and exported?
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As per UN 2811 classification (6.1/PGIII), the chemical is packaged and shipped according to relevant transport regulations for toxic substances. Please contact us for detailed export capabilities.
How can I request a sample or a quote?
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To request a sample or a quote for (2-Chloroethyl)trimethylammonium chloride, please contact the Tech Serve Solutions sales team through our website or by phone.
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