Description

Methyl 4-(Diphenylphosphoryl)Benzoate is a high-value organophosphorus compound featuring a benzoate ester and a diphenylphosphine oxide moiety. This unique structure makes it a versatile and critical building block and ligand precursor in advanced chemical synthesis. It is primarily sought after by R&D and production teams in the pharmaceutical and specialty chemical industries for developing novel active ingredients and functional materials.

Application

• Pharmaceutical Intermediate: Serves as a key synthon in the development of drug candidates, particularly those requiring phosphine oxide or ester functionalities.
• Ligand Synthesis: Acts as a precursor for the preparation of sophisticated phosphine-based ligands used in catalysis, such as cross-coupling reactions.
• Material Science Research: Utilized in the synthesis of organic electronic materials, including monomers for polymers with specific optoelectronic properties.
• Agrochemical Development: Employed in research for creating novel active ingredients with potential herbicidal or pesticidal activity.
• Academic & Industrial R&D: A valuable reagent for method development and exploring new synthetic pathways in organic chemistry.

Basic Information

Product Name	Methyl 4-(Diphenylphosphoryl)Benzoate
CAS No.	5032-55-3
Molecular Formula	C20H17O3P
Molecular Weight	336.32 g/mol
Synonyms	Methyl 4-(diphenylphosphinyl)benzoate; Benzoic acid, 4-(diphenylphosphinyl)-, methyl ester; 4-(Diphenylphosphinyl)benzoic acid methyl ester; Methyl p-(diphenylphosphinyl)benzoate; [4-(Methoxycarbonyl)phenyl]diphenylphosphine oxide; p-(Diphenylphosphinyl)benzoic Acid Methyl Ester; Methyl 4-(diphenylphosphoryl)benzoate; Methyl 4-(diphenylphosphinite)benzoate (common misnomer)
EINECS	Contact for details

Quality Control

Our production of Methyl 4-(Diphenylphosphoryl)Benzoate adheres to stringent internal quality standards to ensure batch-to-batch consistency and high purity for research and production applications. Each lot is analyzed using advanced techniques including HPLC, NMR, and GC to confirm identity and purity. A comprehensive Certificate of Analysis (COA) detailing all specifications is provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at room temperature (15-25°C). This compound is hygroscopic (moisture-sensitive); keep the container tightly sealed in a dry environment to prevent degradation.

Specification

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

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