Description

Ethyl Phenylphosphonite is an organophosphorus compound primarily used as a key intermediate in the synthesis of complex phosphorus-containing molecules. Its value lies in its role as a versatile building block for ligands, flame retardants, and specialty polymers. This product is essential for research and development chemists and industrial manufacturers in the agrochemical, pharmaceutical, and material science sectors. We supply high-purity Ethyl Phenylphosphonite to meet the stringent demands of advanced chemical synthesis.

Application

• Phosphorus Ligand Precursor: A crucial intermediate for synthesizing chiral and achiral phosphine ligands used in homogeneous catalysis, such as cross-coupling reactions.
• Agrochemical Intermediates: Used in the production of organophosphorus insecticides, herbicides, and plant growth regulators.
• Pharmaceutical Synthesis: Serves as a building block for creating novel active pharmaceutical ingredients (APIs) and prodrugs.
• Flame Retardant Additives: Incorporated into the synthesis of specialized flame-retardant compounds for polymers and textiles.
• Material Science: Used in the development of advanced materials, including photoinitiators and polymer modifiers.
• Organic Synthesis Reagent: Acts as a phosphorylating agent and a reactant in the formation of P-C and P-O bonds.

Basic Information

Product Name	Ethyl Phenylphosphonite
CAS No.	62740-39-0
Molecular Formula	C8H11OP
Molecular Weight	154.15 g/mol
Synonyms	Ethoxy(phenyl)phosphine; Phenylphosphonous Acid Ethyl Ester; Ethyl Phenylphosphinite; Ethyl Phenylphosphinate (common misnomer); Phenylethoxyphosphine; (Ethoxy)(phenyl)phosphane; NSC 163944
EINECS	Contact for details

Quality Control

Our Ethyl Phenylphosphonite is manufactured under strict quality control protocols to ensure batch-to-batch consistency and high purity. We provide comprehensive Certificates of Analysis (COA) with each shipment, detailing key parameters such as assay, identity, and impurity profiles. Our quality management system is designed to meet the rigorous standards required for research and industrial-scale applications.

Storage

Preserve in a tightly closed container, protected from light. Store under an inert atmosphere (e.g., nitrogen or argon) in a cool, dry, and well-ventilated place. Recommended storage temperature is 2-8°C for long-term stability. This compound is easily oxidized and moisture-sensitive; ensure containers are sealed immediately after use.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (GC)	≥ 95.0%
Purity (HPLC)	≥ 97.0%
Water Content (KF)	≤ 0.5%

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