Description

4-Ethyl-7-Methyl-7-Aza-2,6-Dioxa-1-Phosphabicyclo[2.2.2]Octane1-Sulfide is a specialized organophosphorus compound featuring a unique bicyclic cage structure. This molecular architecture is critical for its role as a high-performance flame retardant additive, particularly in polymer systems requiring excellent thermal stability and low volatility. It is primarily utilized by formulators and manufacturers in the plastics, textiles, and electronics industries seeking to enhance fire safety without compromising material properties.

Application

• Flame Retardant for Engineering Plastics: Key additive in polyamides (nylon), polyesters (PBT, PET), and polycarbonates for electrical and electronic components.
• Fire-Safe Polymer Composites: Used in reinforced composites for automotive, aerospace, and construction applications to meet stringent fire safety standards.
• Textile Finishing Agent: Imparts durable flame resistance to synthetic fibers and technical textiles.
• Reactive Intermediate: Serves as a building block in the synthesis of more complex phosphorus-containing compounds for specialized applications.
• Additive for Thermoset Resins: Incorporated into epoxy and unsaturated polyester resins for circuit boards and insulating materials.

Basic Information

Product Name	4-Ethyl-7-Methyl-7-Aza-2,6-Dioxa-1-Phosphabicyclo[2.2.2]Octane1-Sulfide
CAS No.	67590-59-4
Molecular Formula	C8H16NO2PS
Molecular Weight	221.26 g/mol
Synonyms	7-Ethyl-1-methyl-1-aza-4,6-dioxa-5-phosphabicyclo[2.2.2]octane 5-sulfide; 4-Ethyl-2,6,7-trioxa-1-phospha-4-azabicyclo[2.2.2]octane 1-sulfide, 4-methyl-; 1-Ethyl-4-methyl-1-aza-4-phospha-2,6,7-trioxabicyclo[2.2.2]octane 4-sulfide; PES; Bicyclic Phosphonate Sulfide; FR-A; Contact for additional trade names.
EINECS	Contact for details

Quality Control

Our production of 4-Ethyl-7-Methyl-7-Aza-2,6-Dioxa-1-Phosphabicyclo[2.2.2]Octane1-Sulfide adheres to a strict quality management system. Every batch undergoes rigorous analytical testing to ensure consistent purity, performance, and compliance with relevant industry specifications for flame retardant additives. A comprehensive Certificate of Analysis (COA) detailing assay, identity, and impurity profiles is provided with each 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). This product is hygroscopic (moisture-sensitive). Keep the container tightly sealed under an inert atmosphere (e.g., nitrogen) to prevent moisture absorption and degradation.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to reference spectrum
Assay (HPLC)	≥ 98.0%
Melting Point	Contact for details
Loss on Drying	≤ 0.5%
Heavy Metals	≤ 10 ppm

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