Description

10-Decyloxy-9,10-dihydro-9-oxa-10-phosphaphenanthrene is a high-performance organophosphorus compound, specifically a DOPO derivative, valued for its role as a reactive flame retardant and intermediate. Its primary commercial significance lies in its ability to impart excellent flame retardancy to polymers without compromising their mechanical properties or thermal stability. This product is essential for manufacturers in the engineering plastics, epoxy resins, and polyurethane industries seeking halogen-free, high-efficiency solutions.

Application

• Reactive Flame Retardant for Epoxy Resins: Incorporated into epoxy systems for printed circuit boards (PCBs) and electronic encapsulants to achieve UL 94 V-0 ratings.
• Polymer Additive for Engineering Plastics: Used as a co-monomer or additive in polyesters, polyamides, and polycarbonates to enhance fire resistance.
• Synthesis Intermediate for Advanced Flame Retardants: Serves as a key precursor for synthesizing other phosphaphenanthrene derivatives with tailored properties.
• Flame-Retardant Coatings and Adhesives: Formulated into high-performance coatings and adhesives requiring robust fire safety standards.
• Thermoset Composites: Applied in fiber-reinforced composites for aerospace, automotive, and electrical applications demanding lightweight and fire-safe materials.

Basic Information

Product Name	10-Decyloxy-9,10-dihydro-9-oxa-10-phosphaphenanthrene
CAS No.	52458-38-5
Molecular Formula	C22H31O2P
Molecular Weight	358.46 g/mol
Synonyms	10-Decyloxy-9,10-dihydro-9-oxa-10-phosphaphenanthrene 10-oxide; DOPO-C10; Decyl DOPO; 10-(Decyloxy)-9,10-dihydro-9-oxa-10-phosphaphenanthrene 10-oxide; 6H-Dibenz[c,e][1,2]oxaphosphorin, 6-(decyloxy)-6H-, 6-oxide; CAS 52458-38-5; Phosphaphenanthrene derivative
EINECS	Contact for details

Quality Control

Our production of 10-Decyloxy-9,10-dihydro-9-oxa-10-phosphaphenanthrene adheres to stringent quality management protocols. Every batch is analyzed to ensure high purity and consistency, with key parameters verified by techniques including HPLC, NMR, and GC. Certificates of Analysis (COA) detailing purity, identity, and specific impurity profiles are provided to guarantee supply reliability and performance for your formulations.

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). Keep away from strong oxidizers and heat sources. Under these conditions, the product remains stable for extended periods.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	Contact for details
Loss on Drying	≤ 0.5%
Phosphorus Content	Contact for details

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