Trimethylsilyl trimethylsiloxyacetate
Also known as: trimethylsilyl (trimethylsiloxy)acetate, trimethylsilyl [(trimethylsilyl)oxy]acetate, Acetic acid, 2-[(trimethylsilyl)oxy]-, trimethylsilyl ester, Acetic acid, (trimethylsiloxy)-, trimethylsilyl ester, Glycolic acid, bis-TMS, Glycolic acid, di-TMS, Trimethylsiloxyacetic acid trimethylsilyl ester, trimethylsilyl 2-trimethylsilyloxyacetate, MFCD00009840, EINECS 251-580-9
Trimethylsilyl trimethylsiloxyacetate (CAS 33581-77-0) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C8H20O3Si2 and a molecular weight of 220.414 g/mol. Key properties include a boiling point of 176.5±23.0 °C at 760 mmHg, a density of 0.9±0.1 g/cm3 and a flash point of 43.3±0.0 °C. It is classified under GHS with signal word Warning and hazard statements H226 — Flammable liquid and vapour, H315 — Causes skin irritation and H319 — Causes serious eye irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 33581-77-0
- Jingsj CID
- J-44616-2
- Molecular Formula
- C8H20O3Si2
- Molecular Weight
- 220.414 g/mol
- Category
- Organic Acids
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Boiling Point | 176.5±23.0 °C at 760 mmHg |
|---|---|
| Density | 0.9±0.1 g/cm3 |
| Flash Point | 43.3±0.0 °C |
| Exact Mass | 220.095093 |
| PSA | 35.53000 |
| LogP | 2.78 |
| Vapor Pressure | 1.1±0.3 mmHg at 25°C |
| Refractive Index | 1.411 |
GHS Safety & Compliance
- H226 — Flammable liquid and vapour
- 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 Trimethylsilyl trimethylsiloxyacetate?
The CAS number of Trimethylsilyl trimethylsiloxyacetate is 33581-77-0.
What are the molecular formula and molecular weight of Trimethylsilyl trimethylsiloxyacetate?
Trimethylsilyl trimethylsiloxyacetate has molecular formula C8H20O3Si2 and molecular weight 220.414 g/mol.
Is Trimethylsilyl trimethylsiloxyacetate hazardous?
Trimethylsilyl trimethylsiloxyacetate has GHS signal word Warning and hazard statements H226 — Flammable liquid and vapour; H315 — Causes skin irritation; H319 — Causes serious eye irritation.
What are the upstream and downstream products of Trimethylsilyl trimethylsiloxyacetate?
For Trimethylsilyl trimethylsiloxyacetate, Upstream Products: Chlorotrimethylsilane, Glycolic acid, N,O-Bis(trimethylsilyl)trifluoroacetamide; Downstream Products: 1,4-Dioxaspiro[4.5]decan-2-one, 2,2-dimethyl-1,3-dioxolan-4-one, Tris(trimethylsiloxy)ethylene.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Trimethylsilyl trimethylsiloxyacetate (CAS 33581-77-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-44616-2 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.