Trimethyltin chloride
Trimethyltin chloride (CAS: 1066-45-1) is an organotin compound with the linear formula (CH3)3SnCl and a molecular weight of 199.27 g/mol. This compound serves as a valuable reagent in organic synthesis, particularly in the introduction of the trimethyltin group. Its reactivity makes it useful in various chemical transformations and as a precursor in organometallic chemistry research.

Organometallic Synthesis
Trimethyltin chloride is employed as a building block in the synthesis of more complex organotin compounds and organometallic complexes. It facilitates the formation of tin-carbon bonds, which are crucial in diverse synthetic pathways.
Chemical Reagent
This compound acts as a versatile reagent in organic chemistry for reactions such as stannylation. It is used to introduce the trimethylstannyl moiety into organic molecules, enabling further functionalization.
Research and Development
Used in academic and industrial research laboratories for exploring novel chemical reactions and developing new materials. Its properties are of interest in areas like materials science and coordination chemistry.
| Molecular weight | 199.27 |
|---|---|
| Linear formula | (CH3)3SnCl |
| Concentration | ~1 M in THF |
| Melting point | 37-39 °C(lit.) |


Hazard statements
- H300Fatal if swallowed
- H310Fatal in contact with skin
- H330Fatal if inhaled
- H410Very toxic to aquatic life with long-lasting effects
Precautionary statements
- P260Do not breathe dust, fume, gas, mist, vapours or spray
- P264Wash thoroughly after handling
- P273Avoid release to the environment
- P280Wear protective gloves, clothing and eye/face protection
- P284Wear respiratory protection
- P301IF SWALLOWED
| Protective equipment | Eyeshields, Faceshields, 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 | 97 °C / 206.6 °F |
| Transport (UN / ADR) | UN 3146 6.1 / PGII |
| Water hazard class (WGK, DE) | 2 |
| Hazard codes (EU) | T+,N |
| Risk statements (R) | 26/27/28-50/53 |
| Safety statements (S) | 26-27-28-45-60-61 |
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 Trimethyltin chloride used for?
+
Trimethyltin chloride is primarily used as a reagent in organic synthesis for introducing the trimethyltin group and in the preparation of organometallic compounds and complexes. It is also utilised in chemical research and development.
What is the CAS number and formula for Trimethyltin chloride?
+
The CAS number for Trimethyltin chloride is 1066-45-1, and its linear formula is (CH3)3SnCl.
What grade and purity does Tech Serve Solutions supply?
+
Tech Serve Solutions supplies Trimethyltin chloride typically as a solution, for example, ~1 M in THF. The specific grade and purity will be detailed in the product specification sheet available upon request. TSS does not represent this product as USP, BP, or EP grade.
How should Trimethyltin chloride be handled safely?
+
Trimethyltin chloride is a highly toxic compound. Handle with extreme care, using appropriate personal protective equipment including eyeshields, faceshields, suitable gloves, and a full-face particle respirator (type N100 US). Ensure adequate ventilation and avoid release to the environment, as it is very toxic to aquatic life with long-lasting effects.
Is Trimethyltin chloride a controlled substance?
+
The provided data does not indicate that Trimethyltin chloride is a controlled substance. However, users should always verify local regulations regarding its handling and use.
How is Trimethyltin chloride packed and shipped?
+
Trimethyltin chloride is packed and shipped according to international regulations for hazardous materials, including UN 3146 classification. TSS exports chemicals globally, adhering to all relevant transport and safety standards.
How can I request a sample or quote for Trimethyltin chloride?
+
To request a sample or a quote for Trimethyltin chloride, please contact our sales team through the website or by phone. Provide the product name and CAS number (1066-45-1) for efficient processing.
▶ 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