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1-Methoxy-3-(trimethylsilyloxy)-1,3-butadiene

Also known as: Danishefsky's diene, trans-1-Methoxy-3-(trimethylsilyloxy)-1,3-butadiene, 1-Methoxy-3-(trimethylsiloxy)-1,3-butadiene, Silane, [(3-methoxy-1-methylene-2-propenyl)oxy]trimethyl-, (E)-, (E)-1-Methoxy-3-(trimethylsiloxy)-1,3-butadiene

1-Methoxy-3-(trimethylsilyloxy)-1,3-butadiene (CAS 54125-02-9) is a compound in the Aliphatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C8H16O2Si and a molecular weight of 172.297 g/mol. Key properties include a boiling point of 181.7±0.0 °C at 760 mmHg, a density of 0.9±0.1 g/cm3 and a flash point of 45.0±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.
54125-02-9
Jingsj CID
J-1381879-6
Molecular Formula
C8H16O2Si
Molecular Weight
172.297 g/mol
Category
Aliphatic Hydrocarbons
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point181.7±0.0 °C at 760 mmHg
Density0.9±0.1 g/cm3
Flash Point45.0±0.0 °C
Exact Mass172.091949
PSA18.46000
LogP1.98
Vapor Pressure1.1±0.3 mmHg at 25°C
Refractive Index1.429

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 1-Methoxy-3-(trimethylsilyloxy)-1,3-butadiene?

The CAS number of 1-Methoxy-3-(trimethylsilyloxy)-1,3-butadiene is 54125-02-9.

What are the molecular formula and molecular weight of 1-Methoxy-3-(trimethylsilyloxy)-1,3-butadiene?

1-Methoxy-3-(trimethylsilyloxy)-1,3-butadiene has molecular formula C8H16O2Si and molecular weight 172.297 g/mol.

Is 1-Methoxy-3-(trimethylsilyloxy)-1,3-butadiene hazardous?

1-Methoxy-3-(trimethylsilyloxy)-1,3-butadiene has GHS signal word Warning and hazard statements H226 — Flammable liquid and vapour.

What are the upstream and downstream products of 1-Methoxy-3-(trimethylsilyloxy)-1,3-butadiene?

For 1-Methoxy-3-(trimethylsilyloxy)-1,3-butadiene, Upstream Products: Chlorotrimethylsilane, trans-4-Methoxy-3-buten-2-one, Trimethylsilyl trifluoromethanesulfonate; Downstream Products: 3-Hydroxyxanthen-9-one, phenanthren-2-ol, Phenanthren-3-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-3-(trimethylsilyloxy)-1,3-butadiene (CAS 54125-02-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1381879-6 (accessed 2026-11-09).

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