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Atomfair 3-Butyl-1-methyl-1H-imidazol-3-ium bis(fluorosulfonyl)amide BMIM FSI, BMIM bis(FSO2)2N C8H15F2N3O4S2 CAS 1235234-58-8

3-Butyl-1-methyl-1H-imidazol-3-ium bis(fluorosulfonyl)amide (CAS No. 1235234-58-8) is a high-purity ionic liquid with the molecular formula C8H15F2N3O4S2. This compound, also known by its IUPAC name bis(fluorosulfonyl)azanide;1-butyl-3-methylimidazol-3-ium , is a versatile material widely used in electrochemical applications due to its excellent thermal stability, low viscosity, and high ionic conductivity. It is particularly valued as an electrolyte component in advanced lithium-ion batteries, supercapacitors, and other energy storage systems. The product is supplied as a clear, colorless to pale yellow liquid with a purity of ≥98%, ensuring consistent performance in research and industrial settings. Proper storage under inert conditions is recommended to maintain its stability…

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Description

3-Butyl-1-methyl-1H-imidazol-3-ium bis(fluorosulfonyl)amide (CAS No. 1235234-58-8) is a high-purity ionic liquid with the molecular formula C8H15F2N3O4S2. This compound, also known by its IUPAC name bis(fluorosulfonyl)azanide;1-butyl-3-methylimidazol-3-ium, is a versatile material widely used in electrochemical applications due to its excellent thermal stability, low viscosity, and high ionic conductivity. It is particularly valued as an electrolyte component in advanced lithium-ion batteries, supercapacitors, and other energy storage systems. The product is supplied as a clear, colorless to pale yellow liquid with a purity of ≥98%, ensuring consistent performance in research and industrial settings. Proper storage under inert conditions is recommended to maintain its stability and shelf life.

Properties

  • CAS Number: 1235234-58-8
  • Complexity: 324
  • IUPAC Name: bis(fluorosulfonyl)azanide;1-butyl-3-methyl-imidazol-3-ium
  • InChI: InChI=1S/C8H15N2.F2NO4S2/c1-3-4-5-10-7-6-9(2)8-10;1-8(4,5)3-9(2,6)7/h6-8H,3-5H2,1-2H3;/q+1;-1
  • InChI Key: UAHSIDZLYHAYDH-UHFFFAOYSA-N
  • Exact Mass: 319.04720464
  • Molecular Formula: C8H15F2N3O4S2
  • Molecular Weight: 319.4
  • SMILES: CCCCN1C=C[N+](=C1)C.[N-](S(=O)(=O)F)S(=O)(=O)F
  • Topological: 94.9
  • Monoisotopic Mass: 319.04720464
  • Synonyms: 1235234-58-8, 3-Butyl-1-methyl-1H-imidazol-3-ium bis(fluorosulfonyl)amide, MFCD17018938, 1-Butyl-3-methylimidazolium bis(fluorosulfonyl)imide, G83920, 1-butyl-3-methylimidazolium bis(fluorosulfonyl)amide

Application

3-Butyl-1-methyl-1H-imidazol-3-ium bis(fluorosulfonyl)amide is primarily used as an electrolyte additive in lithium-ion batteries to enhance thermal stability and electrochemical performance. Its low volatility and high ionic conductivity make it ideal for high-temperature battery applications. Researchers also employ it in supercapacitors and fuel cells to improve energy density and cycle life. Additionally, it serves as a solvent or catalyst in organic synthesis due to its unique ionic properties.

Safety and Hazards

GHS Hazard Statements

  • H315 (100%): Causes skin irritation [Warning Skin corrosion/irritation]
  • H319 (100%): Causes serious eye irritation [Warning Serious eye damage/eye irritation]
  • H335 (100%): May cause respiratory irritation [Warning Specific target organ toxicity, single exposure; Respiratory tract irritation]

Precautionary Statements

  • P261, P264, P264+P265, P271, P280, P302+P352, P304+P340, P305+P351+P338, P319, P321, P332+P317, P337+P317, P362+P364, P403+P233, P405, and P501

Hazard Classes and Categories

  • Skin Irrit. 2 (100%)
  • Eye Irrit. 2 (100%)
  • STOT SE 3 (100%)

If you are interested or have any questions, please contact us at support@atomfair.com

Disclaimer: Sold exclusively for laboratory research. Prohibited for commercial use, diagnostics, or human/animal applications. Buyers assume all compliance liability.

Disclaimer

Intended Use & Restrictions

This product is sold exclusively for laboratory research, analytical testing, or non-commercial purposes.

  • Strictly prohibited: Resale, repackaging, or formulation into commercial products.
  • Not approved for human/animal use, diagnostics, or manufacturing (including pharmaceuticals, agrochemicals, or consumer goods).

Patent & Regulatory Compliance

Certain molecules may be protected by active patents or regulatory restrictions.

  • Buyers must independently verify patent status (e.g., via USPTO/EPO/CNIPA) and comply with local laws.
  • Atomfair LLC does not provide legal assurances regarding patent non-infringement or jurisdictional compliance.

Liability Release

By purchasing, the buyer agrees to:

  • Use this product only as permitted by law.
  • Indemnify Atomfair LLC against all claims arising from misuse, patent infringement, or regulatory violations.

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