Description

Diisopropyl Phosphite is a versatile organophosphorus compound widely used as a key intermediate and reagent in organic synthesis. Its primary value lies in its role as a phosphitylating agent and a precursor for the production of more complex phosphorus-containing compounds. This chemical is essential for manufacturers and R&D teams in the pharmaceutical, agrochemical, and polymer industries, where it facilitates the creation of flame retardants, stabilizers, and active pharmaceutical ingredients.

Application

• Pharmaceutical Intermediate: Used in the synthesis of nucleotide analogs, antiviral drugs, and other active pharmaceutical ingredients (APIs).
• Agrochemical Synthesis: Serves as a key building block for producing organophosphate pesticides, herbicides, and plant growth regulators.
• Polymer Additive Precursor: An important intermediate for manufacturing phosphite-based antioxidants and stabilizers for plastics and synthetic fibers.
• Flame Retardant Production: Used in the synthesis of phosphorus-containing flame retardants for engineering plastics and textiles.
• Ligand in Catalysis: Acts as a ligand for transition metal catalysts in various cross-coupling and hydrogenation reactions.
• Chemical Research & Development: Employed as a versatile reagent for introducing phosphite groups in organic molecules during R&D.

Basic Information

Product Name	Diisopropyl Phosphite
CAS No.	1809-20-7
Molecular Formula	C6H15O3P
Molecular Weight	166.16 g/mol
Synonyms	Diisopropyl phosphite; Phosphorous acid, diisopropyl ester; Diisoxypropyl phosphite; Isopropyl phosphite; DIPP; Di-iso-propylphosphite; Hydrogen diisopropyl phosphite; Diisopropyl hydrogen phosphonite
EINECS	217-315-6

Quality Control

Our Diisopropyl Phosphite is produced under strict quality management protocols. Each batch undergoes rigorous analytical testing, including GC, NMR, and titration methods, to ensure high purity and consistency. Certificates of Analysis (COA) detailing purity, identity, and impurity profiles are provided with every shipment to guarantee compliance with your specific application requirements.

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) due to its easily oxidized nature. Recommended storage temperature is between 2°C and 25°C. Keep away from heat, sparks, open flames, and strong oxidizing agents.

Specification

Item	Specification
Appearance	Colorless to pale yellow clear liquid
Identification (IR)	Conforms
Assay (GC)	≥ 98.0%
Water Content (Karl Fischer)	≤ 0.2%
Acidity (as H3PO4)	≤ 0.5%
Specific Gravity (20°C)	1.010 - 1.030
Refractive Index (nD20)	1.410 - 1.420

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