Description

p-Tolyl-Phosphonic Acid Diethyl Ester is a high-purity organophosphorus compound, specifically a phosphonic acid ester derivative, valued for its role as a versatile synthetic intermediate and ligand precursor. Its molecular structure makes it a critical building block in the development of advanced materials and specialty chemicals, offering precise control over final product properties. This product is essential for researchers and manufacturers in the pharmaceutical, agrochemical, and material science sectors seeking reliable, high-quality intermediates for complex synthesis.

Application

• Pharmaceutical Intermediate: Serves as a key precursor in the synthesis of novel active pharmaceutical ingredients (APIs) and drug candidates.
• Agrochemical Synthesis: Used in the production of advanced herbicides, pesticides, and plant growth regulators.
• Ligand for Catalysis: Acts as a precursor for phosphonate-based ligands used in homogeneous catalysis and metal-organic frameworks (MOFs).
• Flame Retardant Additive: Incorporated as a reactive intermediate in the manufacture of flame-retardant polymers and coatings.
• Material Science Research: Employed in the development of specialty polymers, liquid crystals, and advanced electronic materials.
• Organic Synthesis Building Block: Utilized in cross-coupling reactions and other transformations to introduce the p-tolylphosphonate functional group.

Basic Information

Product Name	p-Tolyl-Phosphonic Acid Diethyl Ester
CAS No.	1754-46-7
Molecular Formula	C11H17O3P
Molecular Weight	228.22 g/mol
Synonyms	Diethyl p-Tolylphosphonate; Diethyl (4-Methylphenyl)phosphonate; Phosphonic acid, P-(4-methylphenyl)-, diethyl ester; 4-Methylbenzenephosphonic Acid Diethyl Ester; Diethyl 4-Methylphenylphosphonate; p-Tolylphosphonic Acid Diethyl Ester; (4-Methylphenyl)phosphonic Acid Diethyl Ester; EINECS 217-150-0
EINECS	217-150-0

Quality Control

Our p-Tolyl-Phosphonic Acid Diethyl Ester is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including chromatographic purity analysis and identity confirmation, to ensure it meets exacting standards for research and industrial use. A comprehensive Certificate of Analysis (COA) detailing purity, assay, and impurity profiles is provided with every shipment to guarantee traceability and consistency.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). Keep away from strong bases and incompatible materials. For long-term storage under inert atmosphere, please contact our technical team for specific recommendations.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (GC/HPLC)	≥ 97.0%
Water Content (KF)	≤ 0.5%
Density (at 20°C)	~1.10 g/cm³

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