1-Chloro-1-methylsilacyclobutane
1-Chloro-1-methylsilacyclobutane (CAS: 2351-34-0) is a silicon-based chemical compound with the empirical formula C4H9ClSi and a molecular weight of 120.65 g/mol. This organosilicon reagent is primarily utilised as an intermediate in chemical synthesis, specifically in the formation of enoxysilacyclobutanes. Tech Serve Solutions supplies this compound at a purity of 98%.

Intermediate in Enoxysilacyclobutane Synthesis
This compound serves as a crucial intermediate for the synthesis of enoxysilacyclobutanes. Its specific structure facilitates further chemical transformations in organic synthesis pathways.
Organosilicon Chemistry
As a silicon-based compound, it finds applications in organosilicon chemistry research and development. It is valuable for introducing specific silicon-containing moieties into target molecules.
Synthetic Reagent
1-Chloro-1-methylsilacyclobutane functions as a versatile synthetic reagent in various organic chemistry applications. Its reactivity allows for diverse chemical modifications and constructions.
| Molecular weight | 120.65 |
|---|---|
| Empirical formula | C4H9ClSi |
| Assay | 98% |
| Boiling point | 103 °C(lit.) |
| Density | 0.985 g/mL at 25 °C(lit.) |
| Refractive index | n20/D 1.45(lit.) |
| Application | Intermediate in the formation of enoxysilacyclobutanes.1 |


Hazard statements
- H225Highly flammable liquid and vapour
- H314Causes severe skin burns and eye damage
Precautionary statements
- P210Keep away from heat, sparks and open flames. No smoking
- P280Wear protective gloves, clothing and eye/face protection
- P305IF IN EYES
- P310Immediately call a POISON CENTER or doctor
| Protective equipment | Faceshields, full-face respirator (US), Gloves, Goggles, multi-purpose combination respirator cartridge (US), type ABEK (EN14387) respirator filter |
|---|---|
| Flash point | 3 °C / 37.4 °F |
| Transport (UN / ADR) | UN 2985 8(3) / PGII |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | F,C |
| Risk statements (R) | 11-14-34 |
| Safety statements (S) | 16-26-36/37/39-45 |
| Supplemental hazards | Reacts violently with water. |
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 1-Chloro-1-methylsilacyclobutane used for?
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1-Chloro-1-methylsilacyclobutane is primarily used as an intermediate in the formation of enoxysilacyclobutanes and as a general synthetic reagent in organosilicon chemistry.
What are the CAS number and formula for 1-Chloro-1-methylsilacyclobutane?
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The CAS number for 1-Chloro-1-methylsilacyclobutane is 2351-34-0, and its empirical formula is C4H9ClSi.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 1-Chloro-1-methylsilacyclobutane with an assay of 98%. We do not represent this product as USP, BP, or EP grade.
How should 1-Chloro-1-methylsilacyclobutane be handled?
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1-Chloro-1-methylsilacyclobutane is a flammable liquid and causes severe skin burns and eye damage. It reacts violently with water. Handling requires appropriate personal protective equipment, including gloves, goggles, and face shields, and should be done in a well-ventilated area, away from ignition sources. Ensure appropriate respirator protection is used.
How is 1-Chloro-1-methylsilacyclobutane packed and shipped?
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This product is classified under UN 2985, Hazard Class 8(3), Packing Group II, indicating it is shipped as a corrosive, flammable liquid. Specific packaging and shipping procedures adhere to international regulations for hazardous materials.
How can I request a sample or quote for 1-Chloro-1-methylsilacyclobutane?
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To request a sample or a quote for 1-Chloro-1-methylsilacyclobutane, please contact our sales team through the website or by direct inquiry, providing your specific requirements.
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