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Trimethylsilyl methacrylate

Also known as: 2-Propenoic acid, 2-methyl-, trimethylsilyl ester, Methacrylic acid, trimethylsilyl ester, Methacryloxytrimethylsilane, Trimethyl Methacryloxysilane, Trimethylsilyl 2-methylacrylate, trimethylsilyl 2-methylprop-2-enoate, MFCD00053868

Trimethylsilyl methacrylate (CAS 13688-56-7) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C7H14O2Si and a molecular weight of 158.270 g/mol. Key properties include a boiling point of 146.8±0.0 °C at 760 mmHg, a density of 0.9±0.1 g/cm3 and a flash point of 32.8±0.0 °C. It is classified under GHS with signal word Danger and hazard statements H226 — Flammable liquid and vapour, H315 — Causes skin irritation and H317 — May cause an allergic skin reaction. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
13688-56-7
Jingsj CID
J-1994141-4
Molecular Formula
C7H14O2Si
Molecular Weight
158.270 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point146.8±0.0 °C at 760 mmHg
Density0.9±0.1 g/cm3
Flash Point32.8±0.0 °C
Exact Mass158.076309
PSA26.30000
LogP2.39
Vapor Pressure4.6±0.2 mmHg at 25°C
Refractive Index1.414
Storage Conditions2-8°C

GHS Safety & Compliance

Flammable / Irritant / Health HazardSignal word: Danger
  • H226 — Flammable liquid and vapour
  • H315 — Causes skin irritation
  • H317 — May cause an allergic skin reaction
  • H319 — Causes serious eye irritation
  • H334 — May cause allergy or asthma symptoms if inhaled
  • H335 — May cause respiratory irritation

Frequently Asked Questions

What is the CAS number of Trimethylsilyl methacrylate?

The CAS number of Trimethylsilyl methacrylate is 13688-56-7.

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

Trimethylsilyl methacrylate has molecular formula C7H14O2Si and molecular weight 158.270 g/mol.

Is Trimethylsilyl methacrylate hazardous?

Trimethylsilyl methacrylate has GHS signal word Danger and hazard statements H226 — Flammable liquid and vapour; H315 — Causes skin irritation; H317 — May cause an allergic skin reaction.

What are the upstream and downstream products of Trimethylsilyl methacrylate?

For Trimethylsilyl methacrylate, Upstream Products: Methacrylic acid, 1,3-Bis(trimethylsilyl)urea, Trimethylsilyl acetate; Downstream Products: Trimethylfluorosilane, Hexamethyldisiloxane, Chlorotrimethylsilane.

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 methacrylate (CAS 13688-56-7)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1994141-4 (accessed 2026-11-09).

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