Phenyltriethoxysilane
Also known as: Triethoxyphenylsilane, TRIETHOXYPHENYLSILANE, Triethoxy(phenyl)silane, Benzene, (triethoxysilyl)-, Triethoxysilylbenzene, HD-128, LS 4480, CP0320, PTS 32, TSL 8178, KBE103, KH-632, Z-9805
Phenyltriethoxysilane (CAS 780-69-8) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C12H20O3Si and a molecular weight of 240.371 g/mol. Key properties include a melting point of <-50ºC, a boiling point of 236.5±0.0 °C at 760 mmHg, a density of 1.0±0.1 g/cm3 and a flash point of 102.5±26.2 °C. It is classified under GHS with signal word Warning and hazard statements H226 — Flammable liquid and vapour. No supplier offers are currently listed; request a quote. Record last updated Nov 3, 2026.
- CAS No.
- 780-69-8
- Jingsj CID
- J-18778-0
- Molecular Formula
- C12H20O3Si
- Molecular Weight
- 240.371 g/mol
- Category
- Aromatic Hydrocarbons
- Last updated
- 11/3/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | <-50ºC |
|---|---|
| Boiling Point | 236.5±0.0 °C at 760 mmHg |
| Density | 1.0±0.1 g/cm3 |
| Flash Point | 102.5±26.2 °C |
| Exact Mass | 240.118164 |
| PSA | 27.69000 |
| LogP | 2.99 |
| Additional Property | >1 (vs air) |
| Vapor Pressure | 0.1±0.4 mmHg at 25°C |
| Refractive Index | 1.475 |
| Additional Property | insoluble |
GHS Safety & Compliance
- H226 — Flammable liquid and vapour
Customs & Trade Information
| HS Code | 29310095 |
|---|
Frequently Asked Questions
What is the CAS number of Phenyltriethoxysilane?
The CAS number of Phenyltriethoxysilane is 780-69-8.
What are the molecular formula and molecular weight of Phenyltriethoxysilane?
Phenyltriethoxysilane has molecular formula C12H20O3Si and molecular weight 240.371 g/mol.
Is Phenyltriethoxysilane hazardous?
Phenyltriethoxysilane has GHS signal word Warning and hazard statements H226 — Flammable liquid and vapour.
What are the upstream and downstream products of Phenyltriethoxysilane?
For Phenyltriethoxysilane, Upstream Products: Iodobenzene, Triethoxysilane, Ethanol; Downstream Products: 4-(Trifluoromethyl)benzhydrol, 2-Chloro-4-phenylpyridine, 2,2'-Dichloro-4,4'-bipyridine.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Phenyltriethoxysilane (CAS 780-69-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-18778-0 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.