Description

1-(3-Aminopropyl)-3-methylimidazolium tetrafluoroborate (CAS No. 914770-49-3) is a high-purity ionic liquid with the molecular formula C₇H₁₄BF₄N₃. This compound is classified as an imidazolium-based ionic liquid featuring a reactive primary amine functional group on the propyl side chain, paired with a non-coordinating tetrafluoroborate (BF₄⁻) anion. Its unique structure combines the thermal stability and low volatility typical of ionic liquids with the versatility of an amine moiety, making it suitable for advanced applications in catalysis, electrochemistry, and materials science. The product is supplied as a colorless to pale-yellow liquid or low-melting solid, with stringent quality control to ensure consistency in reactivity and purity (typically ≥95% by HPLC). Store under inert atmosphere at 2-8°C to prevent moisture absorption and degradation.

Properties

• CAS Number: 914770-49-3
• Complexity: 114
• IUPAC Name: 3-(3-methylimidazol-3-ium-1-yl)propan-1-amine;tetrafluoroborate
• InChI: InChI=1S/C7H14N3.BF4/c1-9-5-6-10(7-9)4-2-3-8;2-1(3,4)5/h5-7H,2-4,8H2,1H3;/q+1;-1
• InChI Key: KCDIRUYTDLHOQT-UHFFFAOYSA-N
• Exact Mass: 227.1216903
• Molecular Formula: C7H14BF4N3
• Molecular Weight: 227.01
• SMILES: [B-](F)(F)(F)F.C[N+]1=CN(C=C1)CCCN
• Topological: 34.8
• Monoisotopic Mass: 227.1216903
• Synonyms: SCHEMBL28148388, SCHEMBL29097488, 1-(3-aminopropyl)-3-methylimidazolium tetrafluoroborate, 1-(3-Aminopropyl)-3-methyl-1H-imidazol-3-ium tetrafluoroborate, 914770-49-3

Application

This ionic liquid is widely employed as a functionalized solvent or catalyst in green chemistry applications, particularly in CO₂ capture due to its amine group’s affinity for acidic gases. Researchers utilize it as an electrolyte component in energy storage systems, where its ionic conductivity and wide electrochemical window enhance battery performance. The compound also serves as a building block for synthesizing task-specific ionic liquids through further modification of its amine group.

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