Description

4-Phenyl-2,6,7-trioxa-1-phosphabicyclo[2.2.2]octane 1-oxide is a specialized organophosphorus compound, recognized for its role as a reactive flame-retardant intermediate and a versatile chemical building block. Its unique bicyclic cage structure provides high thermal stability and efficient phosphorus content, making it a valuable additive for enhancing material properties. This product is essential for R&D chemists and manufacturers in the polymer, electronics, and advanced materials sectors seeking to develop flame-retardant, high-performance formulations.

Application

• Flame Retardant Intermediate: A key reactive precursor for synthesizing novel, high-efficiency flame retardants used in engineering plastics, epoxy resins, and polyurethane foams.
• Polymer Additive: Incorporated into polymer matrices to impart flame retardancy while maintaining mechanical and thermal properties.
• Electronic Encapsulants: Used in the formulation of flame-retardant coatings, potting compounds, and encapsulants for electronic components and circuit boards.
• Chemical Synthesis: Serves as a versatile phosphorylating agent and building block in organic and medicinal chemistry for creating complex molecules.
• Advanced Composite Materials: Enhances the fire safety performance of fiber-reinforced composites used in aerospace, automotive, and construction.
• Adhesives and Sealants: Imparts flame-retardant characteristics to high-performance adhesives and sealants.

Basic Information

Item	Details
Product Name	4-Phenyl-2,6,7-trioxa-1-phosphabicyclo[2.2.2]octane 1-oxide
CAS No.	2200-87-5
Molecular Formula	C11H13O4P
Molecular Weight	240.19 g/mol
Synonyms	Phenyl DOPO; 1-Oxo-1-phospha-2,8,9-trioxa-adamantane, 4-phenyl-; 4-Phenyl-1-oxa-4-phospha-2,6,7-trioxabicyclo[2.2.2]octane 4-oxide; DOPO derivative; 2,6,7-Trioxa-1-phosphabicyclo[2.2.2]octane, 4-phenyl-, 1-oxide; PEPA; 4-Phenyl-2,6,7-trioxa-1-phosphabicyclo[2.2.2]octane-1-oxide
EINECS	218-622-8

Quality Control

Our production of 4-Phenyl-2,6,7-trioxa-1-phosphabicyclo[2.2.2]octane 1-oxide adheres to stringent quality management protocols. Every batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation, to ensure it meets precise customer specifications and consistent high-grade quality. Certificates of Analysis (COA) detailing all relevant parameters are available upon request.

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). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed to prevent degradation from atmospheric moisture. Keep away from incompatible materials.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to reference spectrum
Assay (HPLC)	≥ 98.0%
Melting Point	118 - 122 °C
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.