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1-Butyl-3-methylimidazolium trifluoromethanesulfonate

Also known as: 1-butyl-3-methylimidazolium triflate, 1-n-butyl-3-methylimidazolium triflate, 1-butyl-3-methylimidazolium trifluoromethansulfonate, BMIM OTf, 1-butyl-3-methyl-1H-imidazol-3-ium trifluoromethanesulfonate, 1-n-Butyl-3-methylimidazolium trifluoromethanesulfonate, MFCD03427620

1-Butyl-3-methylimidazolium trifluoromethanesulfonate (CAS 174899-66-2) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C9H15F3N2O3S and a molecular weight of 288.287 g/mol. Key properties include a melting point of 16°C, a density of 1.2951 and a flash point of >100°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 Nov 3, 2026.

CAS No.
174899-66-2
Jingsj CID
J-1494472-0
Molecular Formula
C9H15F3N2O3S
Molecular Weight
288.287 g/mol
Category
Pharma Intermediates
Last updated
11/3/2026
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Physicochemical Properties

Melting Point16°C
Density1.2951
Flash Point>100°C
Exact Mass288.075562
PSA74.39000
LogP2.24490
Refractive Index1.434
Storage Conditions2-8℃

GHS Safety & Compliance

Acute ToxicitySignal word: Danger
  • H301 — Toxic if swallowed
  • H315 — Causes skin irritation
  • H319 — Causes serious eye irritation

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 trifluoromethanesulfonate?

The CAS number of 1-Butyl-3-methylimidazolium trifluoromethanesulfonate is 174899-66-2.

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

1-Butyl-3-methylimidazolium trifluoromethanesulfonate has molecular formula C9H15F3N2O3S and molecular weight 288.287 g/mol.

Is 1-Butyl-3-methylimidazolium trifluoromethanesulfonate hazardous?

1-Butyl-3-methylimidazolium trifluoromethanesulfonate 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 trifluoromethanesulfonate?

For 1-Butyl-3-methylimidazolium trifluoromethanesulfonate, Upstream Products: 1-butyl-1H-imidazole, Methyl trifluoromethanesulfonate, Dimethyl sulfate.

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 trifluoromethanesulfonate (CAS 174899-66-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1494472-0 (accessed 2026-11-09).

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