Description

Phenylphosphinic Acid Phenyl Ester is an organophosphorus compound valued for its role as a versatile intermediate and functional additive. Its chemical structure makes it particularly useful in applications requiring flame retardancy, polymer modification, and as a precursor in specialty synthesis. This product is essential for manufacturers in the polymer, electronics, and fine chemical industries seeking to enhance material performance and develop advanced formulations.

Application

• As a key intermediate in the synthesis of advanced flame retardants for engineering plastics and textiles.
• As a reactive modifier or cross-linking agent in epoxy resins and other high-performance polymer systems.
• In the production of organophosphorus ligands for catalysis and metal extraction processes.
• As a potential additive to improve the thermal stability and flame resistance of polyesters and polyamides.
• In research and development for novel pharmaceutical intermediates and agrochemicals.
• For use in the formulation of specialty adhesives and coatings where enhanced properties are required.

Basic Information

Product Name	Phenylphosphinic Acid Phenyl Ester
CAS No.	52744-21-5
Molecular Formula	C12H11O2P
Molecular Weight	218.19 g/mol
Synonyms	Phenyl Phenylphosphinate; Diphenylphosphinate; Phenylphosphonic Acid Phenyl Ester; Phenyl Phenylphosphonite (oxidized form); Phosphinic Acid, Phenyl-, Phenyl Ester; O-Phenyl Phenylphosphonothioate (related); Phenylphosphonous Acid Phenyl Ester
EINECS	Contact for details

Quality Control

Our Phenylphosphinic Acid Phenyl Ester is produced under a strict quality management system to ensure batch-to-batch consistency and high purity. Each lot is analyzed using advanced techniques including GC, HPLC, and NMR to verify identity and composition. A comprehensive Certificate of Analysis (COA) detailing purity, assay, and impurity profiles is provided with every shipment to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). This material is easily oxidized; for long-term storage, maintaining an inert atmosphere (e.g., under nitrogen or argon) is recommended to preserve product integrity. Keep away from strong oxidizing agents.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid or solid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 97.0%
Purity (GC)	≥ 96.0%
Water Content (KF)	≤ 0.5%

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