Chloromethyl(dimethyl)methoxysilane
Also known as: (Chloromethyl)methoxydimethylsilane, (Chlormethyl)methoxydimethylsilane, Chloromethyl(dimethyl)methoxysilane, Dimethyl(chloromethyl)methoxysilane, chloromethyl-methoxy-dimethylsilane, chloromethyl dimethyl methoxy silane, Silane,(chloromethyl)methoxydimethyl-, MFCD05664349, DK148, DK615, DKSI209
Chloromethyl(dimethyl)methoxysilane (CAS 18143-33-4) is a compound in the Aliphatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C4H11ClOSi and a molecular weight of 138.668 g/mol. Key properties include a boiling point of 103.6±13.0 °C at 760 mmHg, a density of 0.9±0.1 g/cm3 and a flash point of 16.0±12.0 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 18143-33-4
- Jingsj CID
- J-556-1
- Molecular Formula
- C4H11ClOSi
- Molecular Weight
- 138.668 g/mol
- Category
- Aliphatic Hydrocarbons
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Boiling Point | 103.6±13.0 °C at 760 mmHg |
|---|---|
| Density | 0.9±0.1 g/cm3 |
| Flash Point | 16.0±12.0 °C |
| Exact Mass | 138.026764 |
| PSA | 9.23000 |
| LogP | 1.85 |
| Vapor Pressure | 37.0±0.2 mmHg at 25°C |
| Refractive Index | 1.400 |
Customs & Trade Information
| HS Code | 2931900090 |
|---|---|
| Summary | 2931900090. other organo-inorganic compounds. VAT:17.0%. Tax rebate rate:13.0%. Supervision conditions:AB(certificate of inspection for goods inward,certificate of inspection for goods outward). MFN tariff:6.5%. General tariff:30.0% |
Frequently Asked Questions
What is the CAS number of Chloromethyl(dimethyl)methoxysilane?
The CAS number of Chloromethyl(dimethyl)methoxysilane is 18143-33-4.
What are the molecular formula and molecular weight of Chloromethyl(dimethyl)methoxysilane?
Chloromethyl(dimethyl)methoxysilane has molecular formula C4H11ClOSi and molecular weight 138.668 g/mol.
What are the upstream and downstream products of Chloromethyl(dimethyl)methoxysilane?
For Chloromethyl(dimethyl)methoxysilane, Upstream Products: Methanol, Chloro(chloromethyl)dimethylsilane, Trifluoromethanesulfonamide; Downstream Products: Cyclohexanamine hydrochloride, Methanol.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Chloromethyl(dimethyl)methoxysilane (CAS 18143-33-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-556-1 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.