Methyltriacetoxysilane
Also known as: Triacetoxymethylsilane, Methylsilanetriyl triacetate, Triacetoxy(methyl)silane, Methyltriacethoxysilane, k10s
Methyltriacetoxysilane (CAS 4253-34-3) is a compound in the Aliphatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C7H12O6Si and a molecular weight of 220.252 g/mol. Key properties include a melting point of 40-45 °C(lit.), a boiling point of 221.3±0.0 °C at 760 mmHg, a density of 1.2±0.1 g/cm3 and a flash point of 85.0±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 Aug 21, 2026.
- CAS No.
- 4253-34-3
- Jingsj CID
- J-18790-5
- Molecular Formula
- C7H12O6Si
- Molecular Weight
- 220.252 g/mol
- Category
- Aliphatic Hydrocarbons
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 40-45 °C(lit.) |
|---|---|
| Boiling Point | 221.3±0.0 °C at 760 mmHg |
| Density | 1.2±0.1 g/cm3 |
| Flash Point | 85.0±0.0 °C |
| Exact Mass | 220.040314 |
| PSA | 78.90000 |
| LogP | 1.37 |
| Vapor Pressure | 0.1±0.4 mmHg at 25°C |
| Refractive Index | 1.424 |
GHS Safety & Compliance
- H315 — Causes skin irritation
- H319 — Causes serious eye irritation
- H335 — May cause respiratory irritation
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 Methyltriacetoxysilane?
The CAS number of Methyltriacetoxysilane is 4253-34-3.
What are the molecular formula and molecular weight of Methyltriacetoxysilane?
Methyltriacetoxysilane has molecular formula C7H12O6Si and molecular weight 220.252 g/mol.
Is Methyltriacetoxysilane hazardous?
Methyltriacetoxysilane 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 Methyltriacetoxysilane?
For Methyltriacetoxysilane, Upstream Products: Methyltrichlorosilane, Methylchlorosilane, Sodium acetate; Downstream Products: Methyltri-n-propoxysilane.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Methyltriacetoxysilane (CAS 4253-34-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-18790-5 (accessed 2026-11-07).
Data for reference only; verify product details with suppliers before purchase.