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1-Butyl-3-methylimidazolium tetrafluoroborate

Also known as: 1-Butyl-3-methylimidazolium tetrafluoroborate, 1-Butyl-3-methylimidazolium tetrafluoroborate, 98+%, 1-Butyl-3-methylimidazolium tetrafluoroborate, BMIMBF4, 1-n-Butyl-3-methylimidazolium tetrafluoroborate, 3-Butyl-1-methyl-1H-imidazol-3-ium tetrafluoroborate, [bmim][BF4], BMIMBF4, MFCD03095449

1-Butyl-3-methylimidazolium tetrafluoroborate (CAS 174501-65-6) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C8H15BF4N2 and a molecular weight of 226.023 g/mol. Key properties include a melting point of -71 °C, a density of 1.21 g/mL at 20 °C(lit.) and a flash point of 288 °C. It is classified under GHS with signal word Danger and hazard statements H301 — Toxic if swallowed, 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.
174501-65-6
Jingsj CID
J-987920-3
Molecular Formula
C8H15BF4N2
Molecular Weight
226.023 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026
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Physicochemical Properties

Melting Point-71 °C
Density1.21 g/mL at 20 °C(lit.)
Flash Point288 °C
Exact Mass226.126450
PSA8.81000
LogP2.41270
Refractive Indexn20/D 1.52

GHS Safety & Compliance

Acute Toxicity / Environmental HazardSignal word: Danger
  • H301 — Toxic if swallowed
  • H315 — Causes skin irritation
  • H319 — Causes serious eye irritation
  • H411 — Toxic to aquatic life with long lasting effects

Customs & Trade Information

HS Code2933290090
Summary2933290090. other compounds containing an unfused imidazole ring (whether or not hydrogenated) in the structure. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%

Frequently Asked Questions

What is the CAS number of 1-Butyl-3-methylimidazolium tetrafluoroborate?

The CAS number of 1-Butyl-3-methylimidazolium tetrafluoroborate is 174501-65-6.

What are the molecular formula and molecular weight of 1-Butyl-3-methylimidazolium tetrafluoroborate?

1-Butyl-3-methylimidazolium tetrafluoroborate has molecular formula C8H15BF4N2 and molecular weight 226.023 g/mol.

Is 1-Butyl-3-methylimidazolium tetrafluoroborate hazardous?

1-Butyl-3-methylimidazolium tetrafluoroborate has GHS signal word Danger and hazard statements H301 — Toxic if swallowed; H315 — Causes skin irritation; H319 — Causes serious eye irritation.

What are the upstream and downstream products of 1-Butyl-3-methylimidazolium tetrafluoroborate?

For 1-Butyl-3-methylimidazolium tetrafluoroborate, Upstream Products: 1-Butyl-3-methylimidazolium Bromide, 1-methylimidazole, 1-Chlorobutane; Downstream Products: 1-butyl-1H-imidazole, Thioanisole, Methyl benzoate.

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-Butyl-3-methylimidazolium tetrafluoroborate (CAS 174501-65-6)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-987920-3 (accessed 2026-11-09).

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