2-(Chloromethyl)allyl-trimethylsilane
2-(Chloromethyl)allyl-trimethylsilane (CAS: 18388-03-9) is a halogenated organosilicon compound. With a molecular weight of 162.73 g/mol, it serves as a valuable building block in organic synthesis. Its structure, featuring both an alkene and a reactive chloromethyl group, enables diverse chemical transformations. This compound is primarily utilised in research and development for the creation of more complex molecules within the fields of chemical synthesis and materials science.
- IUPAC
- 2-(Chloromethyl)-3-trimethylsilyl-1-propene,2-(Trimethylsilylmethyl)allyl chloride
- Synonyms
- 2-(Chloromethyl)-3-trimethylsilyl-1-propene2-(Trimethylsilylmethyl)allyl chloride

Organic Synthesis Intermediate
This compound is employed as a versatile intermediate in the synthesis of novel organic molecules. The presence of the chloromethyl group allows for nucleophilic substitution reactions, while the allyl silane moiety can participate in various coupling and addition reactions.
Material Science Research
It can be utilised in the development of new materials, potentially incorporated into polymers or functionalised surfaces. The organosilane component offers unique properties relevant to surface modification and material design.
Building Block for Complex Structures
As a functionalised building block, it facilitates the introduction of specific structural elements into larger molecules. Its reactivity profile makes it suitable for multi-step synthetic strategies in academic and industrial research.
| Molecular weight | 162.73 |
|---|---|
| Linear formula | (CH3)3SiCH2C(CH2Cl)=CH2 |
| Assay | 97% |
| Boiling point | 162-163 °C/768 mmHg(lit.) |
| Density | 0.899 g/mL at 25 °C(lit.) |
| Refractive index | n20/D 1.453(lit.) |
| Storage temperature | 2-8°C |


Hazard statements
- H226Flammable liquid and vapour
- 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 | Eyeshields, Faceshields, full-face respirator (US), Gloves, multi-purpose combination respirator cartridge (US), type ABEK (EN14387) respirator filter |
|---|---|
| Flash point | 43 °C / 109.4 °F |
| Transport (UN / ADR) | UN 1993C 3 / PGIII |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xi |
| Risk statements (R) | 10-36/37/38 |
| Safety statements (S) | 26-36 |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
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-(Chloromethyl)allyl-trimethylsilane used for?
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2-(Chloromethyl)allyl-trimethylsilane (CAS: 18388-03-9) is primarily used as a building block and intermediate in organic synthesis and materials science research.
What is the CAS number and formula for 2-(Chloromethyl)allyl-trimethylsilane?
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The CAS number is 18388-03-9. The linear formula is (CH3)3SiCH2C(CH2Cl)=CH2.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 2-(Chloromethyl)allyl-trimethylsilane with an assay of 97%. We do not represent this product as USP, BP, or EP grade.
How should 2-(Chloromethyl)allyl-trimethylsilane be handled safely?
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This compound is flammable (H226) and can cause skin irritation (H315), serious eye irritation (H319), and respiratory irritation (H335). Always use appropriate personal protective equipment, including eyeshields, gloves, and a suitable respirator, and handle in a well-ventilated area. Refer to the Safety Data Sheet for comprehensive handling guidelines.
Is 2-(Chloromethyl)allyl-trimethylsilane a controlled substance?
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The provided data does not indicate that 2-(Chloromethyl)allyl-trimethylsilane is a controlled substance.
How is 2-(Chloromethyl)allyl-trimethylsilane packed and shipped?
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Tech Serve Solutions exports chemicals globally. Specific packaging details are confirmed upon order, adhering to international shipping regulations for hazardous materials.
How can I request a sample or quote for 2-(Chloromethyl)allyl-trimethylsilane?
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Please contact our sales team via the website or direct inquiry to request a sample or a quotation for 2-(Chloromethyl)allyl-trimethylsilane.
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