Description

Cyclotriphosphazene Ester CAS NO 291-37-2 is a versatile organophosphorus compound characterized by a cyclic phosphazene core functionalized with ester groups. This structure provides a unique combination of thermal stability and chemical reactivity, making it a valuable intermediate for advanced material synthesis. It is primarily sought after by R&D chemists and process engineers in the polymer, flame retardant, and specialty chemical industries for developing high-performance additives and novel polymeric architectures.

Application

• Key monomer or cross-linking agent for the synthesis of cyclomatrix polyphosphazenes and other high-temperature polymers.
• Precursor for flame-retardant additives in engineering plastics, textiles, and coatings.
• Intermediate in the development of liquid crystal polymers (LCPs) and other specialty materials with tailored dielectric properties.
• Building block for dendrimers and star-shaped polymers used in drug delivery and nanotechnology.
• Component in elastomer formulations to enhance thermal and chemical resistance.
• Research chemical for exploring novel coordination chemistry and ligand systems.
• Starting material for surface modification agents and functional coatings.

Basic Information

Product Name	Cyclotriphosphazene Ester
CAS No.	291-37-2
Molecular Formula	C6H12N3O6P3 (Hexachlorocyclotriphosphazene ester derivative; specific formula varies by ester group)
Molecular Weight	Contact for details
Synonyms	Cyclotriphosphazene Ester; Hexa(organooxy)cyclotriphosphazene; Phosphonitrilic Ester Trimer; Cyclophosphazene Ester; 2,2,4,4,6,6-Hexa(alkoxy)cyclotriphosphazene; PN Ester Trimer; Triphosphonitrilic Ester
EINECS	Contact for details

Quality Control

Our Cyclotriphosphazene Ester is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing, including HPLC for purity and NMR for structural confirmation, to ensure it meets precise customer specifications and consistent batch-to-batch performance. A comprehensive Certificate of Analysis (COA) detailing all test results is provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed under an inert atmosphere (e.g., nitrogen or argon) after opening to prevent degradation.

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	≤ 1.0%
Residue on Ignition	≤ 0.1%

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