Description

Tris(4-Carboxylphenyl)Phosphineoxide is a high-value, multifunctional organophosphorus compound featuring a central phosphine oxide core with three carboxylic acid-terminated phenyl arms. This unique structure makes it an essential advanced intermediate and ligand precursor for demanding synthesis and material science applications. It is primarily sought by R&D and production teams in the pharmaceutical, agrochemical, and specialty polymer industries for constructing complex molecular architectures and functional materials.

Application

• Pharmaceutical Intermediate: Serves as a key building block for synthesizing active pharmaceutical ingredients (APIs), particularly those requiring phosphine oxide or polycarboxylate functionalities.
• Ligand Synthesis: Acts as a precursor for creating sophisticated polydentate ligands used in catalysis, including cross-coupling reactions and asymmetric synthesis.
• Polymer & Material Science: Utilized in the production of high-performance polymers, such as polyimides and polyamides, where it can impart thermal stability and modify material properties.
• Metal-Organic Frameworks (MOFs): Functions as an organic linker or strut in the construction of MOFs due to its multiple carboxylate coordination sites.
• Surface Modification & Coatings: Used to modify surfaces or create functional coatings where its acid groups can facilitate adhesion or further chemical grafting.
• Agrochemical Synthesis: Employed in the research and development of novel crop protection agents and herbicides.
• Chelating Agent: Can be used to sequester metal ions in specialized applications or analytical chemistry.

Basic Information

Product Name	Tris(4-Carboxylphenyl)Phosphineoxide
CAS No.	807-19-2
Molecular Formula	C21H15O7P
Molecular Weight	434.32 g/mol
Synonyms	4,4',4''-Phosphinidynetris(benzoic acid); Tris(p-carboxyphenyl)phosphine oxide; Phosphorous acid tris(4-carboxyphenyl) ester oxide; 4,4',4''-Phosphinidynetribenzoic acid; P,P,P-Tris(4-carboxyphenyl)phosphine oxide; [4-(Carboxy)phenyl]phosphine oxide; TCPO; T4CPPO
EINECS	Contact for details

Quality Control

Our Tris(4-Carboxylphenyl)Phosphineoxide is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation via FT-IR and NMR spectroscopy, to ensure it meets precise customer specifications and high-purity standards. A comprehensive Certificate of Analysis (COA) detailing all test results 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 a controlled room temperature (15-25°C). Keep away from strong acids and incompatible materials. The product is light-sensitive (store away from light).

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Melting Point	Contact for details
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
Heavy Metals (as Pb)	≤ 10 ppm

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