Description

9,10-Dihydro-10-(2,3-Dicarboxypropyl)-9-Oxa-10-Phosphaphenanthrene 10-Oxide is a high-performance organophosphorus compound, widely recognized as a highly effective reactive flame retardant and a versatile intermediate for advanced material synthesis. Its unique chemical structure provides excellent thermal stability and compatibility with various polymer matrices, making it a critical component for enhancing fire safety without compromising material properties. This product is essential for manufacturers in the polymer, electronics, and specialty chemical industries seeking to develop safer, high-performance materials that meet stringent global fire safety regulations.

Application

• Reactive Flame Retardant for Polymers: Primarily used as a co-monomer or additive in the production of flame-retardant polyesters, epoxy resins, polyurethanes, and other thermosetting plastics.
• Engineering Plastics & Composites: Incorporated into high-performance engineering plastics and fiber-reinforced composites to impart excellent flame retardancy (UL94 V-0 rating) and thermal stability.
• Electronic Encapsulation Materials: A key component in flame-retardant epoxy molding compounds (EMCs) and potting materials used for semiconductors, circuit boards, and electronic components.
• Synthetic Intermediate: Serves as a crucial building block for synthesizing more complex organophosphorus compounds, including novel flame retardants and specialty additives.
• Adhesives & Coatings: Used to formulate fire-resistant adhesives, sealants, and protective coatings for construction, automotive, and aerospace applications.
• Textile Finishing: Applied in the production of flame-retardant fabrics and fibers for protective clothing, home furnishings, and industrial textiles.

Basic Information

Product Name	9,10-Dihydro-10-(2,3-Dicarboxypropyl)-9-Oxa-10-Phosphaphenanthrene 10-Oxide
CAS No.	63562-33-4
Molecular Formula	C₁₈H₁₅O₇P
Molecular Weight	374.28 g/mol
Synonyms	DOPO-based Dicarboxylic Acid; DOPO-DCA; 10-(2,3-Dicarboxypropyl)-9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide; DOPO derivative; Reactive DOPO intermediate; Phosphaphenanthrene derivative; Flame Retardant Monomer DOPO-DA; 1-Oxa-6-phosphaspiro[5.5]undecane derivative
EINECS	Contact for details

Quality Control

Our production of 9,10-Dihydro-10-(2,3-Dicarboxypropyl)-9-Oxa-10-Phosphaphenanthrene 10-Oxide adheres to a strict quality management system to ensure batch-to-batch consistency and high purity. Every lot undergoes rigorous analytical testing, including HPLC for assay and impurity profiling, to confirm it meets precise specifications. A comprehensive Certificate of Analysis (COA) detailing purity, moisture content, acid value, and other critical parameters is provided with each shipment to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). Due to its hygroscopic nature, the container must be kept tightly sealed after opening to prevent moisture absorption, which can affect product quality and performance. Keep away from incompatible materials such as strong bases and oxidizing agents.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	Contact for details
Acid Value	Contact for details
Moisture (KF)	≤ 0.5%
Related Substances (HPLC)	Total impurities ≤ 2.0%

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