Description

1,3,6,9-Tetraoxacycloundecane is a high-purity cyclic polyether compound, also known as 12-crown-4, valued for its exceptional ability to selectively bind alkali metal cations. This property makes it a critical component in advanced chemical synthesis, catalysis, and materials science. It is essential for researchers and manufacturers in the pharmaceutical, battery electrolyte, and specialty chemical industries seeking precise molecular control and enhanced reaction efficiency.

Application

• Phase-Transfer Catalyst: Facilitates reactions between reagents in immiscible phases, improving yields in organic synthesis.
• Lithium-Ion Battery Electrolyte Additive: Used to stabilize electrolytes and improve lithium-ion transport and battery cycle life.
• Chemical Sensor Development: Serves as a key ionophore in ion-selective electrodes for detecting specific metal ions.
• Pharmaceutical Intermediate: Employed in the synthesis of complex drug molecules requiring selective cation complexation.
• Polymer Modification: Acts as a chelating agent or co-monomer to impart specific ion-binding properties to polymers.
• Analytical Chemistry: Used in separation sciences like chromatography for selective binding and purification.

Basic Information

Product Name	1,3,6,9-Tetraoxacycloundecane
CAS No.	294-59-7
Molecular Formula	C8H16O4
Molecular Weight	176.21 g/mol
Synonyms	12-Crown-4; 1,4,7,10-Tetraoxacyclododecane; 12-Crown-4 Ether; 1,4,7,10-Tetraoxacyclododecane, 12-Crown-4; Cyclic Tetramer of Ethylene Oxide; Ethylene Oxide Tetramer; Tetraethylene Glycol Cyclic Ether; UNII-9K628S5R5F
EINECS	206-001-5

Quality Control

Our 1,3,6,9-Tetraoxacycloundecane is manufactured under strict quality management systems. Each batch is subjected to rigorous analytical testing, including chromatography and spectroscopy, to ensure high purity and consistency. A comprehensive Certificate of Analysis (COA) detailing identity, assay, and impurity profiles is provided with every shipment to guarantee it meets your specific research or production requirements.

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). This product is hygroscopic (moisture-sensitive) and must be kept under an inert atmosphere or in a desiccator after opening to prevent degradation.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (GC/HPLC)	≥ 98.0%
Water Content (KF)	≤ 0.5%
Refractive Index (n20D)	1.450 - 1.455
Density (g/mL at 20°C)	1.090 - 1.110

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