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1-Methoxy-2-methyl-1-(trimethylsiloxy)propene

Also known as: Dimethylketene methyl trimethylsilyl acetal, Methyl trimethylsilyl dimethylketene acetal, [(1-Methoxy-2-methyl-1-propenyl)oxy]trimethylsilane, [(1-Methoxy-2-methylprop-1-en-1-yl)oxy]trimethylsilane, 1-Methoxy-1-trimethylsilyloxy-2-methyl-1-propene, 1-Methoxy-2-methyl-1-(trimethylsilyloxy)-1-propene, Silane, [(1-methoxy-2-methyl-1-propen-1-yl)oxy]trimethyl-, MFCD00010232

1-Methoxy-2-methyl-1-(trimethylsiloxy)propene (CAS 31469-15-5) is a compound in the Aliphatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C8H18O2Si and a molecular weight of 174.313 g/mol. Key properties include a boiling point of 137.4±0.0 °C at 760 mmHg, a density of 0.9±0.1 g/cm3 and a flash point of 14.4±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.
31469-15-5
Jingsj CID
J-40970-1
Molecular Formula
C8H18O2Si
Molecular Weight
174.313 g/mol
Category
Aliphatic Hydrocarbons
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point137.4±0.0 °C at 760 mmHg
Density0.9±0.1 g/cm3
Flash Point14.4±0.0 °C
Exact Mass174.107605
PSA18.46000
LogP3.27
Vapor Pressure8.8±0.2 mmHg at 25°C
Refractive Index1.419

GHS Safety & Compliance

Flammable / IrritantSignal word: Warning
  • H226 — Flammable liquid and vapour
  • H315 — Causes skin irritation
  • H319 — Causes serious eye irritation
  • H335 — May cause respiratory irritation

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 1-Methoxy-2-methyl-1-(trimethylsiloxy)propene?

The CAS number of 1-Methoxy-2-methyl-1-(trimethylsiloxy)propene is 31469-15-5.

What are the molecular formula and molecular weight of 1-Methoxy-2-methyl-1-(trimethylsiloxy)propene?

1-Methoxy-2-methyl-1-(trimethylsiloxy)propene has molecular formula C8H18O2Si and molecular weight 174.313 g/mol.

Is 1-Methoxy-2-methyl-1-(trimethylsiloxy)propene hazardous?

1-Methoxy-2-methyl-1-(trimethylsiloxy)propene 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 1-Methoxy-2-methyl-1-(trimethylsiloxy)propene?

For 1-Methoxy-2-methyl-1-(trimethylsiloxy)propene, Upstream Products: Chlorotrimethylsilane, Methyl isobutyrate, Trimethylsilane; Downstream Products: Methyl 2,2-dimethylacetoacetate, Dimethyl 2,2-dimethylmalonate, 3-Phenylpropan-1-ol.

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

Last updated:

How to cite: Jingsj. "1-Methoxy-2-methyl-1-(trimethylsiloxy)propene (CAS 31469-15-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-40970-1 (accessed 2026-11-09).

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