Description

Bis(12-Crown-4) is a specialized crown ether compound, a member of the macrocyclic polyether family. Its primary value lies in its exceptional ability to selectively complex with alkali metal cations, particularly lithium ions, making it a critical component in advanced material science and electrochemistry research. This high-purity ligand is essential for researchers and manufacturers in the development of lithium-ion battery electrolytes, phase-transfer catalysts, and sophisticated chemical sensors.

Application

• Lithium-Ion Battery Research: As a selective lithium-ionophore in the formulation of novel solid or liquid electrolytes to enhance ion conductivity and battery performance.
• Phase-Transfer Catalysis (PTC): Facilitates reactions between reagents in immiscible phases, particularly useful in organic synthesis and industrial chemical processes.
• Chemical Sensing & Analysis: A key component in ion-selective electrodes (ISEs) and optical sensors for the detection and quantification of lithium ions in various matrices.
• Metal Ion Separation & Extraction: Used in solvent extraction processes and chromatographic techniques for the separation and purification of specific alkali metals.
• Academic & Industrial R&D: Serves as a fundamental building block in supramolecular chemistry and materials science research for creating host-guest complexes.
• Specialty Chemical Synthesis: Employed as a complexing agent to modify reactivity and solubility of reagents in targeted synthetic pathways.

Basic Information

Product Name	Bis(12-Crown-4)
CAS No.	114094-11-0
Molecular Formula	C16H32O8
Molecular Weight	352.42 g/mol
Synonyms	1,4,7,10,13,16-Hexaoxacyclooctadecane, 2,5,8,11,14,17-hexamethyl-; 2,5,8,11,14,17-Hexamethyl-1,4,7,10,13,16-hexaoxacyclooctadecane; 12-Crown-4, dimer; Dimeric 12-Crown-4; Bis(12-crown-4) ether; Lithium ionophore VI; 4,7,13,16-Tetraoxa-1,10-diazacyclooctadecane derivative (related class)
EINECS	Contact for details

Quality Control

Our Bis(12-Crown-4) is produced under stringent quality management protocols to ensure batch-to-batch consistency and high purity. Each lot undergoes comprehensive analytical testing, including HPLC for purity assessment and NMR for structural confirmation. A Certificate of Analysis (COA) detailing all specifications is provided with every shipment to support your quality assurance and regulatory needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). Due to its hygroscopic nature, the container must be kept tightly sealed after use to prevent moisture absorption, which can affect product performance. Keep away from incompatible materials.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid or low-melting solid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Water Content (KF)	≤ 0.5%
Residue on Ignition	≤ 0.1%

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.