Description

4,4(5)-Dimethyldibenzo-18-Crown-6 is a lipophilic, substituted crown ether derivative known for its selective cation-binding properties. This compound is a critical tool in supramolecular chemistry, enabling the complexation and transport of specific alkali and alkaline earth metal ions. It is primarily utilized by researchers and manufacturers in the fields of chemical synthesis, analytical chemistry, and materials science for applications such as phase-transfer catalysis, ion-selective sensors, and membrane transport studies.

Application

• Phase-Transfer Catalyst (PTC): Facilitates reactions between reagents in immiscible phases, particularly for nucleophilic substitutions and other organic syntheses.
• Ion-Selective Electrodes & Sensors: Serves as a key ionophore in membrane formulations for detecting potassium and other specific cations.
• Metal Ion Extraction & Separation: Used in liquid-liquid extraction processes to selectively bind and separate metal ions from complex mixtures.
• Supramolecular Chemistry Research: A fundamental building block for constructing host-guest complexes, molecular machines, and functional materials.
• Analytical Chemistry: Employed as a mobile phase additive in chromatography to improve separation of ionic species.
• Membrane Transport Studies: Investigated for its ability to mediate ion transport across lipid bilayers and synthetic membranes.

Basic Information

Product Name	4,4(5)-Dimethyldibenzo-18-Crown-6
CAS No.	34368-73-5
Molecular Formula	C22H28O6
Molecular Weight	388.45 g/mol
Synonyms	4,4'(5')-Dimethyldibenzo-18-crown-6; Dibenzo-18-crown-6, 4,4'(5')-dimethyl-; 4,4'-Dimethyldibenzo-18-crown-6; 4,5-Dimethyldibenzo-18-crown-6; 18-Crown-6, 4,4'(5')-dimethyldibenzo-; DB18C6-4,4'(5')-Me2; 4,4'(5')-Dimethyl-DB18C6
EINECS	Contact for details

Quality Control

Our 4,4(5)-Dimethyldibenzo-18-Crown-6 is produced under strict quality management protocols. Each batch undergoes comprehensive analytical testing, including HPLC for purity and NMR for structural confirmation, to ensure it meets the high standards required for research and industrial applications. A Certificate of Analysis (COA) detailing specific results is provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). Keep away from strong oxidizing agents.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Melting Point	Contact for details
Loss on Drying	≤ 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.