Description

Diethyl (3-Carboxyphenyl)Phosphonate is a high-value organophosphorus intermediate characterized by its bifunctional carboxyphenyl and phosphonate ester groups. This compound matters for its versatility in synthesizing complex molecules, serving as a crucial building block in advanced pharmaceutical and agrochemical research. It is primarily needed by R&D chemists and process development scientists in the fine chemical, pharmaceutical, and crop protection industries for constructing active ingredients and novel materials.

Application

• Pharmaceutical Intermediate: Key precursor in the synthesis of kinase inhibitors, anti-cancer agents, and other biologically active molecules.
• Agrochemical Synthesis: Building block for creating novel herbicides, fungicides, and plant growth regulators.
• Ligand and Catalyst Development: Used to prepare phosphonate-based ligands for metal catalysis and asymmetric synthesis.
• Material Science Research: Intermediate for developing flame retardants, specialty polymers, and metal-organic frameworks (MOFs).
• Chemical Biology Probes: Utilized in the design of activity-based probes and enzyme inhibitors for biochemical research.
• Custom Synthesis & Contract Manufacturing: Supplied to CDMOs for the production of client-specific target molecules under cGMP or research-grade conditions.

Basic Information

Product Name	Diethyl (3-Carboxyphenyl)Phosphonate
CAS No.	26342-23-4
Molecular Formula	C11H15O5P
Molecular Weight	258.21 g/mol
Synonyms	Diethyl 3-Carboxyphenylphosphonate; (3-Carboxyphenyl)phosphonic Acid Diethyl Ester; 3-(Diethoxyphosphoryl)benzoic Acid; m-Carboxyphenylphosphonic Acid Diethyl Ester; Benzoic acid, 3-(diethoxyphosphinyl)-; Diethyl (m-Carboxyphenyl)Phosphonate; Phosphonic acid, P-(3-carboxyphenyl)-, diethyl ester
EINECS	Contact for details

Quality Control

Our Diethyl (3-Carboxyphenyl)Phosphonate is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC, NMR, and IR spectroscopy, to ensure identity, purity, and consistency. Certificates of Analysis (COA) detailing all specifications are provided with every shipment. We support development and commercial projects with material suitable for research use or produced under current Good Manufacturing Practice (cGMP) guidelines for advanced pharmaceutical applications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at controlled room temperature (15-25°C). The product is compatible with strong alkali/organic solvent environments but should be kept separate from incompatible materials. Keep container tightly sealed when not in use to minimize moisture absorption and degradation.

Specification

Item	Specification
Appearance	White to off-white crystalline powder or solid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 97.0%
Purity (HPLC, Area %)	≥ 98.0%
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.