Description

Dibenzyl Phosphite is an organophosphorus compound widely utilized as a versatile intermediate and stabilizer. Its primary commercial value lies in its role as a key building block for synthesizing more complex phosphorus-containing compounds and as an effective antioxidant in polymer systems. This product is essential for manufacturers in the polymer, agrochemical, and specialty chemical industries seeking to enhance material stability and develop new chemical entities.

Application

• Polymer Additive: Acts as a secondary antioxidant and stabilizer in plastics and synthetic rubbers to prevent thermal and oxidative degradation.
• Chemical Intermediate: Serves as a crucial precursor in the synthesis of organophosphorus ligands, flame retardants, and agrochemicals.
• Lubricant & Fuel Additive: Used as an anti-wear agent and antioxidant in advanced lubricant formulations and fuel systems.
• Pharmaceutical Synthesis: Employed as a reagent in the production of certain active pharmaceutical ingredients (APIs) and fine chemicals.
• Metal Extraction & Coordination Chemistry: Functions as a chelating agent in metal ion extraction processes and catalyst preparation.

Basic Information

Product Name	Dibenzyl Phosphite
CAS No.	538-60-3
Molecular Formula	C14H15O3P
Molecular Weight	262.24 g/mol
Synonyms	Dibenzyl Phosphonate (common name); Phosphonic Acid, P,P-Bis(phenylmethyl) Ester; Benzyl Phosphite; Bis(benzyloxy)phosphine Oxide; DBPP; NSC 403119; Dibenzyl Hydrogen Phosphite; P,P-Dibenzyl Phosphite
EINECS	208-695-2

Quality Control

Our Dibenzyl Phosphite is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including assay by titration and impurity profiling, to ensure it meets precise specifications for industrial and fine chemical applications. A Certificate of Analysis (COA) detailing purity, identity, and other critical parameters 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). This material is hygroscopic (moisture-sensitive) and easily oxidized; it is recommended to store under an inert atmosphere such as nitrogen for long-term preservation to maintain optimal quality.

Specification

Item	Specification
Appearance	Colorless to pale yellow clear liquid
Identification (IR)	Conforms to structure
Assay (Titration)	≥ 98.0 %
Water Content (KF)	≤ 0.5 %
Refractive Index (n20D)	1.550 - 1.560
Density (20°C)	1.15 - 1.20 g/cm³

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