Description

Phosphonic Acid, [[3,5-Dimethoxy-4-(1-Methylethyl)Phenyl]Methyl]-, Diethyl Ester (9Ci) is a specialized organophosphorus compound that serves as a critical synthetic intermediate and functional additive. This chemical matters for its role in imparting specific properties to advanced materials and facilitating complex organic synthesis. It is primarily needed by R&D chemists and process engineers in the pharmaceutical, agrochemical, and specialty polymer industries for developing novel active ingredients and performance additives.

Application

• Pharmaceutical Intermediate: Key building block in the synthesis of novel drug candidates and active pharmaceutical ingredients (APIs).
• Agrochemical Synthesis: Used in the research and production of advanced herbicides, fungicides, and plant growth regulators.
• Ligand and Catalyst Precursor: Serves as a precursor for metal-chelating ligands used in homogeneous catalysis and material science.
• Flame Retardant Synergist: Acts as a component in flame-retardant formulations for polymers and textiles.
• Specialty Polymer Modifier: Incorporated to modify the thermal stability, adhesion, or other physical properties of high-performance polymers.
• Research & Development: Essential compound for academic and industrial research in organic and medicinal chemistry.

Basic Information

Product Name	Phosphonic Acid, [[3,5-Dimethoxy-4-(1-Methylethyl)Phenyl]Methyl]-, Diethyl Ester (9Ci)
CAS No.	443982-76-1
Molecular Formula	C16H27O5P
Molecular Weight	330.36 g/mol
Synonyms	Diethyl [[3,5-dimethoxy-4-(1-methylethyl)phenyl]methyl]phosphonate; [[3,5-Dimethoxy-4-(propan-2-yl)phenyl]methyl]phosphonic Acid Diethyl Ester; Phosphonic Acid, P-[[3,5-Dimethoxy-4-(1-methylethyl)phenyl]methyl]-, Diethyl Ester; Diethyl (3,5-Dimethoxy-4-isopropylbenzyl)phosphonate; Isopropyl Syringylphosphonate Diethyl Ester
EINECS	Contact for details

Quality Control

Our production of Phosphonic Acid, [[3,5-Dimethoxy-4-(1-Methylethyl)Phenyl]Methyl]-, Diethyl Ester (9Ci) adheres to a strict quality management system. Every batch undergoes rigorous analytical testing, including HPLC, GC, NMR, and IR spectroscopy, to ensure identity, purity, and consistency. Certificates of Analysis (COA) documenting all critical parameters are available upon request to support your quality assurance and regulatory compliance needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at a controlled room temperature (15-25°C). Keep away from strong bases and incompatible materials such as strong oxidizing agents. The container must be kept tightly sealed to prevent moisture absorption.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Water Content (KF)	≤ 0.5%
Residue on Ignition	≤ 0.1%

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