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Trimethyloxonium tetrafluoroborate

Also known as: TRIMETHYLOXONIUM TETRAFLUOROBORATE, trimethyloxidanium tetrafluoroborate, Oxonium, trimethyl-, tetrafluoroborate(1-), Meerwein's salt

Trimethyloxonium tetrafluoroborate (CAS 420-37-1) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C3H9BF4O and a molecular weight of 147.908 g/mol. Key property: a melting point of 200 °C. It is classified under GHS with signal word Danger and hazard statements H314 — Causes severe skin burns and eye damage. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
420-37-1
Jingsj CID
J-48568-7
Molecular Formula
C3H9BF4O
Molecular Weight
147.908 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Melting Point200 °C
Exact Mass148.068253
PSA9.23000
LogP1.72810
Storage Conditions2-8°C

GHS Safety & Compliance

CorrosionSignal word: Danger
  • H314 — Causes severe skin burns and eye damage

Customs & Trade Information

HS Code2909199090
Summary2909199090. other acyclic ethers and their halogenated, sulphonated, nitrated or nitrosated derivatives. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:5.5%. General tariff:30.0%

Frequently Asked Questions

What is the CAS number of Trimethyloxonium tetrafluoroborate?

The CAS number of Trimethyloxonium tetrafluoroborate is 420-37-1.

What are the molecular formula and molecular weight of Trimethyloxonium tetrafluoroborate?

Trimethyloxonium tetrafluoroborate has molecular formula C3H9BF4O and molecular weight 147.908 g/mol.

Is Trimethyloxonium tetrafluoroborate hazardous?

Trimethyloxonium tetrafluoroborate has GHS signal word Danger and hazard statements H314 — Causes severe skin burns and eye damage.

What are the upstream and downstream products of Trimethyloxonium tetrafluoroborate?

For Trimethyloxonium tetrafluoroborate, Upstream Products: Dimethyl ether, Boron trifluoride diethyl etherate, iodomethane; Downstream Products: 5-Bromo-2-methyl-2H-indazole, 1-Bromo-3-methoxypropane, alpha-Methyl-D-phenylalanine.

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

Last updated:

How to cite: Jingsj. "Trimethyloxonium tetrafluoroborate (CAS 420-37-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-48568-7 (accessed 2026-11-09).

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