Description

Phosphonous Acid, (3,5-Diethyl-4-Hydroxyphenyl)- (9Ci) is a specialized organophosphorus compound characterized by its phenolic and phosphonous acid functional groups. This unique structure makes it a valuable intermediate for synthesizing advanced materials and performance chemicals. It is primarily sought by research and development teams in the fine chemical, polymer additive, and pharmaceutical intermediate sectors for its role in creating novel compounds with tailored properties.

Application

• Polymer Stabilizer Intermediate: A key precursor for synthesizing high-performance antioxidants and light stabilizers used in plastics and synthetic fibers.
• Ligand Synthesis: Used in the preparation of specialized phosphonate ligands for catalysis and metal ion complexation.
• Pharmaceutical Research: Serves as a building block in medicinal chemistry for developing new active pharmaceutical ingredients (APIs).
• Flame Retardant Formulations: Incorporated as a reactive component in the development of organophosphorus-based flame retardant systems.
• Agrochemical Intermediates: Utilized in the synthesis of novel plant growth regulators or herbicide candidates.
• Material Science Research: Employed in creating functionalized surfaces or novel monomers for advanced polymeric materials.

Basic Information

Product Name	Phosphonous Acid, (3,5-Diethyl-4-Hydroxyphenyl)- (9Ci)
CAS No.	740785-42-6
Molecular Formula	C10H15O3P
Molecular Weight	214.20 g/mol
Synonyms	(3,5-Diethyl-4-hydroxyphenyl)phosphonous acid; 4-Hydroxy-3,5-diethylphenylphosphonous acid; (4-Hydroxy-3,5-diethylphenyl)phosphinic acid (tautomer); 3,5-Diethyl-4-hydroxybenzenephosphonous acid; Phosphinic acid, P-(3,5-diethyl-4-hydroxyphenyl)-
EINECS	Contact for details

Quality Control

Every batch of Phosphonous Acid, (3,5-Diethyl-4-Hydroxyphenyl)- (9Ci) is produced and tested under a strict quality management system. We ensure compliance with relevant industry standards through rigorous analytical protocols, including HPLC, NMR, and titration methods. A comprehensive Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is provided with each shipment to guarantee traceability and consistency for your critical 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 area at room temperature (15-25°C). Due to its sensitivity to oxidation, minimize headspace in opened containers and handle under an inert gas to maintain product integrity.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 97.0%
Melting Point	Contact for details
Loss on Drying	≤ 0.5%
Related Substances (HPLC)	Contact for details

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