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Ethyl trimethylsilylacetate

Also known as: Ethyl (trimethylsilyl)acetate, (Trimethylsilyl)acetic acid ethyl ester, Ethyl 2-(trimethylsilyl)acetate, ETSA, Ethyl(2-trimethylsilyl)acetate, Ethyl 2-trimethylsilylacetate, Acetic acid, 2-(trimethylsilyl)-, ethyl ester, MFCD00009172, EINECS 223-783-2

Ethyl trimethylsilylacetate (CAS 4071-88-9) is a compound in the Solvents category listed in the Jingsj chemical database. It has the molecular formula C7H16O2Si and a molecular weight of 160.286 g/mol. Key properties include a boiling point of 157.5±0.0 °C at 760 mmHg, a density of 0.9±0.1 g/cm3 and a flash point of 35.0±0.0 °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 Aug 21, 2026.

CAS No.
4071-88-9
Jingsj CID
J-47306-3
Molecular Formula
C7H16O2Si
Molecular Weight
160.286 g/mol
Category
Solvents
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point157.5±0.0 °C at 760 mmHg
Density0.9±0.1 g/cm3
Flash Point35.0±0.0 °C
Exact Mass160.091949
PSA26.30000
LogP2.26
Vapor Pressure2.7±0.3 mmHg at 25°C
Refractive Index1.405

GHS Safety & Compliance

FlammableSignal word: Warning
  • H226 — Flammable liquid and vapour

Customs & Trade Information

HS Code2931900090
Summary2931900090. 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 Ethyl trimethylsilylacetate?

The CAS number of Ethyl trimethylsilylacetate is 4071-88-9.

What are the molecular formula and molecular weight of Ethyl trimethylsilylacetate?

Ethyl trimethylsilylacetate has molecular formula C7H16O2Si and molecular weight 160.286 g/mol.

Is Ethyl trimethylsilylacetate hazardous?

Ethyl trimethylsilylacetate has GHS signal word Warning and hazard statements H226 — Flammable liquid and vapour.

Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.

Last updated:

How to cite: Jingsj. "Ethyl trimethylsilylacetate (CAS 4071-88-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-47306-3 (accessed 2026-11-09).

Data for reference only; verify product details with suppliers before purchase.