Description

Phosphorous Acid Tris(m-Methylphenyl) Ester is a specialized organophosphorus compound with the CAS registry number 620-38-2. This chemical serves as a versatile intermediate and additive, valued for its role in modifying material properties and facilitating advanced synthesis. It is primarily sought by manufacturers in the polymer, agrochemical, and specialty chemical industries for applications requiring flame retardancy, plasticization, or as a synthetic building block.

Application

• As a flame retardant synergist or plasticizer in polymer formulations, including PVC, epoxy resins, and polyurethanes.
• An intermediate in the synthesis of advanced agrochemicals, such as pesticides and herbicides.
• A key component in the production of lubricant additives and stabilizers for industrial oils.
• Utilized as a chelating agent or stabilizer in certain specialty chemical processes.
• Employed in research and development for creating novel organophosphorus compounds with specific functionalities.

Basic Information

Product Name	Phosphorous Acid Tris(m-Methylphenyl) Ester
CAS No.	620-38-2
Molecular Formula	C21H21O3P
Molecular Weight	352.36 g/mol
Synonyms	Tris(3-methylphenyl) Phosphite; Phosphorous Acid Tris(3-methylphenyl) Ester; Tris(m-tolyl) Phosphite; 3-Methylphenyl Phosphite; m-Tolyl Phosphite; Phenyl Phosphite Derivative; Phosphorous Acid Tri-m-tolyl Ester; Tris(3-methylphenyl) Ester of Phosphorous Acid
EINECS	210-654-6

Quality Control

Our production of Phosphorous Acid Tris(m-Methylphenyl) Ester adheres to stringent quality management protocols. Each batch undergoes comprehensive analytical testing to ensure identity, purity, and consistency meet defined specifications. A Certificate of Analysis (COA) detailing key parameters is provided with every shipment to guarantee traceability and compliance with your quality requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). This material is easily oxidized; for long-term storage, consider an inert atmosphere. Keep away from strong oxidizing agents, strong acids, and strong bases.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Density (20°C)	~1.12 g/cm³
Refractive Index (n20D)	~1.580

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