Description

1-Butyl-1-methylpyrrolidinium Bis(fluorosulfonyl)imide (PYR14FSI) is a high-purity ionic liquid with the molecular formula C₉H₂₀F₂N₂O₄S₂ and CAS number 1057745-51-3. This compound is characterized by its exceptional thermal stability, low viscosity, and high ionic conductivity, making it an ideal candidate for advanced electrochemical applications. It is synthesized under stringent quality control measures to ensure minimal impurities, with a typical purity of ≥98%. PYR14FSI is widely utilized as an electrolyte component in lithium-ion batteries, supercapacitors, and other energy storage devices due to its wide electrochemical window and excellent solvation properties. The product is supplied in airtight, moisture-resistant packaging to maintain its integrity and performance.

Properties

• CAS Number: 1057745-51-3
• Complexity: 324
• IUPAC Name: bis(fluorosulfonyl)azanide;1-butyl-1-methyl-pyrrolidin-1-ium
• InChI: InChI=1S/C9H20N.F2NO4S2/c1-3-4-7-10(2)8-5-6-9-10;1-8(4,5)3-9(2,6)7/h3-9H2,1-2H3;/q+1;-1
• InChI Key: RWCIVBBAADOXMK-UHFFFAOYSA-N
• Exact Mass: 322.08325579
• Molecular Formula: C9H20F2N2O4S2
• Molecular Weight: 322.4
• SMILES: CCCC[N+]1(CCCC1)C.[N-](S(=O)(=O)F)S(=O)(=O)F
• Topological: 86
• Monoisotopic Mass: 322.08325579
• Synonyms: 1-Butyl-1-methylpyrrolidinium bis(fluorosulfonyl)imide, 1057745-51-3, 833-570-1, PYR14FSI, MFCD30749250, 1-Butyl-1-methyl-1-pyrrolidinium Bis(fluorosulfonyl)amide, bis(fluorosulfonyl)azanide;1-butyl-1-methylpyrrolidin-1-ium, 1-butyl-1-methylpyrrolidin-1-ium; bis(fluorosulfonyl)azanide, B5398, CS-0378312, T70052, 1-Butyl-1-methylpyrrolidiniumbis(fluorosulfonyl)imide, N-butyl-N-methylpyrrolidinium bis(fluorosulfonyl)amide, 1-Butyl-1-methylpyrrolidinium bis(fluorosulfonyl)imide, 98%

Application

1-Butyl-1-methylpyrrolidinium Bis(fluorosulfonyl)imide (PYR14FSI) is primarily used as an electrolyte additive in lithium-ion batteries to enhance thermal stability and ionic conductivity. It is also employed in supercapacitors and fuel cells due to its wide electrochemical window and low volatility. Researchers utilize PYR14FSI in advanced energy storage systems to improve cycle life and safety. Its compatibility with various electrode materials makes it a versatile choice for next-generation electrochemical devices.

Safety and Hazards

GHS Hazard Statements

• H302 (33.3%): Harmful if swallowed [Warning Acute toxicity, oral]
• H315 (66.7%): Causes skin irritation [Warning Skin corrosion/irritation]
• H319 (66.7%): Causes serious eye irritation [Warning Serious eye damage/eye irritation]

Precautionary Statements

• P264, P264+P265, P270, P280, P301+P317, P302+P352, P305+P351+P338, P321, P330, P332+P317, P337+P317, P362+P364, and P501

Hazard Classes and Categories

• Acute Tox. 4 (33.3%)
• Skin Irrit. 2 (66.7%)
• Eye Irrit. 2 (66.7%)

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