Description

5-Azoniaspiro(4.4)nonane, tetrafluoroborate(1-) (1:1) (CAS No. 129211-47-8) is a high-purity ionic compound with the molecular formula C₈H₁₆BF₄N. This spirocyclic ammonium salt features a unique bicyclic structure, making it valuable for specialized applications in organic synthesis, electrochemistry, and materials science. The compound is supplied as a crystalline solid with exceptional purity (>98%) and is rigorously tested to meet the stringent requirements of research and industrial applications. Its tetrafluoroborate counterion ensures excellent solubility in polar organic solvents while maintaining stability under a wide range of conditions. Ideal for use as a phase-transfer catalyst, ionic liquid precursor, or electrolyte additive, this reagent is packaged under inert atmosphere to guarantee long-term stability and performance consistency.

Properties

• CAS Number: 129211-47-8
• Complexity: 98.7
• IUPAC Name: 5-azoniaspiro[4.4]nonane;tetrafluoroborate
• InChI: InChI=1S/C8H16N.BF4/c1-2-6-9(5-1)7-3-4-8-9;2-1(3,4)5/h1-8H2;/q+1;-1
• InChI Key: JOBDDXCMKDLDHY-UHFFFAOYSA-N
• Exact Mass: 213.1311923
• Molecular Formula: C8H16BF4N
• Molecular Weight: 213.03
• SMILES: [B-](F)(F)(F)F.C1CC[N+]2(C1)CCCC2
• Monoisotopic Mass: 213.1311923
• Synonyms: 129211-47-8, 5-Azoniaspiro(4.4)nonane, tetrafluoroborate(1-) (1:1), 5-Azoniaspiro[4.4]nonane, tetrafluoroborate(1-) (1:1), spiro-(1,1′)-bipyrrolidinium tetrafluoroborate, 603-322-5, 5-azoniaspiro[4.4]nonane tetrafluoroborate, 5-azoniaspiro[4.4]nonane;tetrafluoroborate, 5-Azaspiro[4.4]nonan-5-ium tetrafluoroborate, MFCD30471511, SCHEMBL557389, JOBDDXCMKDLDHY-UHFFFAOYSA-N, DTXSID401026423, spirobipyrrolidinium tetrafluoroborate, 5-Azaspiro[4.4]nonan-5-iumtetrafluoroborate, A3103, F16216

This spirocyclic ammonium salt serves as a versatile building block in organic synthesis, particularly for constructing complex nitrogen-containing heterocycles. In electrochemistry, it functions as an efficient electrolyte additive for lithium-ion batteries, enhancing ionic conductivity. The compound also finds use in materials science as a precursor for ionic liquids with tailored properties. Its rigid spiro structure makes it valuable for studying molecular recognition processes in supramolecular chemistry.

Safety and Hazards

GHS Hazard Statements

• H302 (98.1%): Harmful if swallowed [Warning Acute toxicity, oral]
• H373 (97.2%): May causes damage to organs through prolonged or repeated exposure [Warning Specific target organ toxicity, repeated exposure]

Precautionary Statements

• P260, P264, P270, P301+P317, P319, P330, and P501

Hazard Classes and Categories

• Acute Tox. 4 (98.1%)
• STOT RE 2 (97.2%)

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