Description

P'-Thiodiphosphoric Acid (III,V)Tetraethyl Ester is a specialized organophosphorus compound that serves as a critical intermediate and reagent in advanced chemical synthesis. Its unique structure, featuring both phosphite and phosphate ester groups linked by a sulfur atom, makes it valuable for constructing complex phosphorus-containing molecules. This chemical is primarily sought by R&D laboratories and production facilities in the agrochemical and pharmaceutical sectors for developing novel active ingredients and ligands.

Application

• Agrochemical Intermediate: Key building block in the synthesis of novel insecticides, herbicides, and fungicides, particularly those with thiophosphoryl or related moieties.
• Pharmaceutical Research: Used as a precursor or phosphorylating agent in the development of potential drug candidates and prodrugs.
• Ligand Synthesis: Employed in the preparation of specialized ligands for catalysis and metal complexation studies.
• Flame Retardant Development: Acts as a reactive intermediate in the research and production of phosphorus-based flame retardant additives.
• Organic Synthesis Reagent: Utilized in academic and industrial laboratories for constructing P-O and P-S bonds in complex organic molecules.
• Polymer Modification: Serves as a functional monomer or cross-linking agent in the synthesis of specialty polymers with tailored properties.

Basic Information

Item	Details
Product Name	P'-Thiodiphosphoric Acid (III,V)Tetraethyl Ester
CAS No.	5935-34-2
Molecular Formula	C8H20O6P2S
Molecular Weight	306.25 g/mol
Synonyms	Tetraethyl Thiodiphosphite; Tetraethyl P,P'-Thiodiphosphite; Ethyl Thiodiphosphite; O,O,O',O'-Tetraethyl Dithiopyrophosphate; Thiodiphosphoric Acid Tetraethyl Ester; Bis(diethoxyphosphinothioyl) Oxide; NSC 163081
EINECS	227-678-8

Quality Control

Every batch of P'-Thiodiphosphoric Acid (III,V)Tetraethyl Ester is manufactured and tested under a strict quality management system. We provide comprehensive analytical documentation to ensure product integrity and consistency for your critical applications. Certificates of Analysis (COA) detailing purity, identity, and impurity profiles are available for each lot upon request.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area away from strong bases and incompatible materials such as oxidizing agents. Recommended storage temperature is between 2°C and 25°C. The product is light-sensitive and should be kept in its original amber container or equivalent light-resistant packaging.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to reference spectrum
Assay (GC or HPLC)	≥ 95.0%
Water Content (KF)	≤ 0.5%
Specific Gravity (20°C)	1.180 - 1.210
Refractive Index (n20D)	1.455 - 1.465

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