Description

Diallylphosphite CAS NO 23679-20-1 is an organophosphorus compound characterized by its two allyl groups bonded to a phosphite moiety. This structure makes it a valuable intermediate in the synthesis of more complex phosphorus-containing molecules, particularly as a precursor for flame retardants and polymer additives. It is primarily utilized by manufacturers in the polymer, specialty chemical, and agrochemical industries seeking to incorporate phosphorus-based functionalities into their products.

Application

• Flame Retardant Intermediate: A key precursor in the synthesis of reactive and additive phosphorus-based flame retardants for polymers, plastics, and textiles.
• Polymer Modification: Used to introduce phosphite groups into polymer chains to act as stabilizers, antioxidants, or to modify material properties.
• Ligand Synthesis: Serves as a starting material for creating specialized phosphite ligands used in homogeneous catalysis and metal complexation.
• Agrochemical Synthesis: An intermediate in the production of certain organophosphorus pesticides and plant growth regulators.
• Lubricant & Fuel Additive Component: Employed in the formulation of anti-wear and extreme pressure additives for advanced lubricants and fuels.
• Pharmaceutical Intermediate: Used in research and development for synthesizing novel bioactive molecules containing phosphorus.

Basic Information

Product Name	Diallylphosphite
CAS No.	23679-20-1
Molecular Formula	C6H11O3P
Molecular Weight	162.12 g/mol
Synonyms	Diallyl Phosphite; Phosphorous Acid, Diallyl Ester; Diallyl Hydrogen Phosphite; Allyl Phosphite (diallyl ester); Bis(2-propenyl) Phosphite; 2-Propen-1-yl Phosphite; DAPO; DAP-H; Contact for additional trade names.
EINECS	Contact for details

Quality Control

Our Diallylphosphite is manufactured under strict quality control protocols to ensure batch-to-batch consistency and high purity. We employ analytical techniques including Gas Chromatography (GC) and NMR to verify identity and assay. A Certificate of Analysis (COA) detailing purity, specific gravity, and other critical parameters is provided with each shipment to support your quality assurance processes.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area under an inert atmosphere (e.g., nitrogen or argon) to prevent oxidation. Recommended storage temperature is 2-8°C for long-term stability. Keep away from heat, sparks, open flames, and strong oxidizing agents.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (GC)	≥ 95.0%
Specific Gravity (20°C)	1.080 - 1.100
Water Content (KF)	≤ 0.5%

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