Octyltrichlorosilane
Also known as: N-OCTYLTRICHLOROSILANE, OCTYLTRICHLOROSILANE, OTCS, Trichloro(octyl)silane, Trichloro-n-octylsilane, n-Octyltrichlorosilane, Trichlorooctylsilane, Silane, octyltrichloro-, Silane, trichlorooctyl-, EINECS 226-112-1, MFCD00000488, CO9830
Octyltrichlorosilane (CAS 5283-66-9) is a compound in the Aliphatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C8H17Cl3Si and a molecular weight of 247.665 g/mol. Key properties include a boiling point of 234.7±0.0 °C at 760 mmHg, a density of 1.1±0.1 g/cm3 and a flash point of 96.7±0.0 °C. It is classified under GHS with signal word Danger and hazard statements 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.
- 5283-66-9
- Jingsj CID
- J-6732-8
- Molecular Formula
- C8H17Cl3Si
- Molecular Weight
- 247.665 g/mol
- Category
- Aliphatic Hydrocarbons
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Boiling Point | 234.7±0.0 °C at 760 mmHg |
|---|---|
| Density | 1.1±0.1 g/cm3 |
| Flash Point | 96.7±0.0 °C |
| Exact Mass | 246.016510 |
| LogP | 7.91 |
| Additional Property | >1 (vs air) |
| Vapor Pressure | 0.1±0.4 mmHg at 25°C |
| Refractive Index | 1.454 |
GHS Safety & Compliance
- 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 Octyltrichlorosilane?
The CAS number of Octyltrichlorosilane is 5283-66-9.
What are the molecular formula and molecular weight of Octyltrichlorosilane?
Octyltrichlorosilane has molecular formula C8H17Cl3Si and molecular weight 247.665 g/mol.
Is Octyltrichlorosilane hazardous?
Octyltrichlorosilane has GHS signal word Danger and hazard statements H314 — Causes severe skin burns and eye damage.
What are the upstream and downstream products of Octyltrichlorosilane?
For Octyltrichlorosilane, Upstream Products: 1-Chlorooctane, octene, Tetrachlorosilane; Downstream Products: Trimethoxy(octyl)silane, Allyldichlorosilane, 1,3-BIS(TRICHLOROSILYL)PROPANE.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Octyltrichlorosilane (CAS 5283-66-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-6732-8 (accessed 2026-11-06).
Data for reference only; verify product details with suppliers before purchase.