Tetrapropoxysilane
Also known as: Propyl orthosilicate, Tetra-n-propoxysilane, Tetrapropyl orthosilicate, Tetrapropyl silicate, DYNASIL P, Orthosilicic acid tetrapropyl ester, Silicic acid (H4SiO4), tetrapropyl ester, Silicon tetra-n-propoxide, Tetrapropyl orthosilcate
Tetrapropoxysilane (CAS 682-01-9) is a compound in the Aliphatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C12H28O4Si and a molecular weight of 264.434 g/mol. Key properties include a melting point of <-80ºC, a boiling point of 224.3±8.0 °C at 760 mmHg, a density of 0.9±0.1 g/cm3 and a flash point of 95.0±0.0 °C. It is classified under GHS with signal word Warning and hazard statements H315 — Causes skin irritation, H319 — Causes serious eye irritation and H335 — May cause respiratory irritation. No supplier offers are currently listed; request a quote. Record last updated Nov 3, 2026.
- CAS No.
- 682-01-9
- Jingsj CID
- J-20151-4
- Molecular Formula
- C12H28O4Si
- Molecular Weight
- 264.434 g/mol
- Category
- Aliphatic Hydrocarbons
- Last updated
- 11/3/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | <-80ºC |
|---|---|
| Boiling Point | 224.3±8.0 °C at 760 mmHg |
| Density | 0.9±0.1 g/cm3 |
| Flash Point | 95.0±0.0 °C |
| Exact Mass | 264.175690 |
| PSA | 36.92000 |
| LogP | 7.22 |
| Additional Property | >1 (vs air) |
| Vapor Pressure | 0.1±0.4 mmHg at 25°C |
| Refractive Index | 1.423 |
GHS Safety & Compliance
- H315 — Causes skin irritation
- H319 — Causes serious eye irritation
- H335 — May cause respiratory irritation
Customs & Trade Information
| HS Code | 2920909090 |
|---|---|
| Summary | 2920909090 esters of other inorganic acids of non-metals (excluding esters of hydrogen halides) and their salts; their halogenated, sulphonated, nitrated or nitrosated derivatives。Supervision conditions:None。VAT:17.0%。Tax rebate rate:9.0%。MFN tariff:6.5%。General tariff:30.0% |
Frequently Asked Questions
What is the CAS number of Tetrapropoxysilane?
The CAS number of Tetrapropoxysilane is 682-01-9.
What are the molecular formula and molecular weight of Tetrapropoxysilane?
Tetrapropoxysilane has molecular formula C12H28O4Si and molecular weight 264.434 g/mol.
Is Tetrapropoxysilane hazardous?
Tetrapropoxysilane has GHS signal word Warning and hazard statements H315 — Causes skin irritation; H319 — Causes serious eye irritation; H335 — May cause respiratory irritation.
What are the upstream and downstream products of Tetrapropoxysilane?
For Tetrapropoxysilane, Upstream Products: 1-Propanol, Silicon, Tetrachlorosilane; Downstream Products: Tetrachlorosilane, 1-(4-Propoxyphenyl)ethanone, Propyl acetate.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Tetrapropoxysilane (CAS 682-01-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-20151-4 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.