Description

Tris Ortho Xenyl Phosphite, 95 CAS NO 2752-19-4 is a specialized organophosphorus compound primarily used as a high-performance antioxidant and stabilizer. This product is critical for preventing oxidative degradation and extending the service life of sensitive materials. It is essential for manufacturers in the polymer, lubricant, and specialty chemical industries seeking to enhance product durability and performance under demanding conditions.

Application

• Primary antioxidant and stabilizer in polymer production, including polyolefins and engineering plastics.
• Additive in synthetic lubricants and industrial oils to prevent oxidation and sludge formation.
• Stabilizing agent in adhesives, sealants, and elastomers to improve thermal and oxidative stability.
• Intermediate in the synthesis of more complex phosphite-based antioxidants and flame retardants.
• Protective agent in specialty coatings and resins to prevent yellowing and maintain clarity.
• Used in research and development for studying phosphite chemistry and developing new stabilization systems.

Basic Information

Product Name	Tris Ortho Xenyl Phosphite, 95
CAS No.	2752-19-4
Molecular Formula	C36H27O3P
Molecular Weight	538.57 g/mol
Synonyms	Tris(2-biphenylyl) phosphite; Phosphorous acid, tris(1,1'-biphenyl-2-yl) ester; Tris(o-xenyl) phosphite; TOXP; 2-Biphenylyl phosphite (3:1); Antioxidant TOX; Tris(2-phenylphenyl) phosphite
EINECS	220-402-8

Quality Control

Our Tris Ortho Xenyl Phosphite is manufactured under strict quality management protocols. Each batch undergoes rigorous analytical testing to ensure it meets the declared purity and performance specifications. A comprehensive Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is provided with every shipment to guarantee traceability and compliance.

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 heat, open flames, and incompatible materials such as strong oxidizing agents.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Melting Point	95 - 105 °C
Loss on Drying	≤ 0.5%

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