tert-Butyltrichlorosilane
Also known as: tert-butyl(trichloro)silane, Trichloro(1,1-dimethylethyl)silane, Trichloro(2-methyl-2-propanyl)silane, t-Butyltrichlorosilane, tert-Butylsilicon trichloride, tert-Butylsilane trichloride, Silane, tert-butyltrichloro-, Silane, trichloro(1,1-dimethylethyl)-, T-BUTYLTRICHLOROSILANE, TERT-BUTYLTRICHLOROSILANE, TRICHLORO-TERT-BUTYLSILANE, trichloro(tert-butyl)silane
tert-Butyltrichlorosilane (CAS 18171-74-9) is a compound in the Aliphatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C4H9Cl3Si and a molecular weight of 191.559 g/mol. Key properties include a melting point of 98 °C, a boiling point of 136.2±9.0 °C at 760 mmHg, a density of 1.2±0.1 g/cm3 and a flash point of 40.6±0.0 °C. It is classified under GHS with signal word Danger and hazard statements H228 and H314 — Causes severe skin burns and eye damage. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 18171-74-9
- Jingsj CID
- J-1523874-1
- Molecular Formula
- C4H9Cl3Si
- Molecular Weight
- 191.559 g/mol
- Category
- Aliphatic Hydrocarbons
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 98 °C |
|---|---|
| Boiling Point | 136.2±9.0 °C at 760 mmHg |
| Density | 1.2±0.1 g/cm3 |
| Flash Point | 40.6±0.0 °C |
| Exact Mass | 189.953903 |
| LogP | 5.42 |
| Vapor Pressure | 9.2±0.2 mmHg at 25°C |
| Refractive Index | 1.445 |
GHS Safety & Compliance
- H228
- H314 — Causes severe skin burns and eye damage
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 tert-Butyltrichlorosilane?
The CAS number of tert-Butyltrichlorosilane is 18171-74-9.
What are the molecular formula and molecular weight of tert-Butyltrichlorosilane?
tert-Butyltrichlorosilane has molecular formula C4H9Cl3Si and molecular weight 191.559 g/mol.
Is tert-Butyltrichlorosilane hazardous?
tert-Butyltrichlorosilane has GHS signal word Danger and hazard statements H228; H314 — Causes severe skin burns and eye damage.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "tert-Butyltrichlorosilane (CAS 18171-74-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1523874-1 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.