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Trimethylsilyl acetate

Also known as: Acetic acid trimethylsilyl ester, Acetoxytrimethylsilane, TMS acetate, Trimethylacetoxysilane, Acetyloxytrimethylsilane, Silanol, trimethyl-, acetate, Trimethylsilanol acetate, O-Trimethylsilyl acetate

Trimethylsilyl acetate (CAS 2754-27-0) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C5H12O2Si and a molecular weight of 132.233 g/mol. Key properties include a melting point of −32 °C(lit.), a boiling point of 107.5±0.0 °C at 760 mmHg, a density of 0.9±0.1 g/cm3 and a flash point of 4.4±0.0 °C. It is classified under GHS with signal word Danger and hazard statements H225 — Highly flammable liquid and vapour. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
2754-27-0
Jingsj CID
J-44583-0
Molecular Formula
C5H12O2Si
Molecular Weight
132.233 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Melting Point−32 °C(lit.)
Boiling Point107.5±0.0 °C at 760 mmHg
Density0.9±0.1 g/cm3
Flash Point4.4±0.0 °C
Exact Mass132.060654
PSA26.30000
LogP1.24
Additional Property1 (vs air)
Vapor Pressure27.0±0.2 mmHg at 25°C
Refractive Index1.391

GHS Safety & Compliance

FlammableSignal word: Danger
  • H225 — Highly 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 Trimethylsilyl acetate?

The CAS number of Trimethylsilyl acetate is 2754-27-0.

What are the molecular formula and molecular weight of Trimethylsilyl acetate?

Trimethylsilyl acetate has molecular formula C5H12O2Si and molecular weight 132.233 g/mol.

Is Trimethylsilyl acetate hazardous?

Trimethylsilyl acetate has GHS signal word Danger and hazard statements H225 — Highly flammable liquid and vapour.

What are the upstream and downstream products of Trimethylsilyl acetate?

For Trimethylsilyl acetate, Upstream Products: Hexamethyldisiloxane, Chlorotrimethylsilane, acetic acid; Downstream Products: 2-pyridyl trifluoromethanesulfonate, 2-Fluoropyridine, 3'-Chloroacetanilide.

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 acetate (CAS 2754-27-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-44583-0 (accessed 2026-11-09).

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