Description

[Dithiobis(4,1-Phenyleneoxy)]Bis(Phosphonothioic Acid O,o-Dimethyl) Ester is a specialized organophosphorus compound that serves as a critical intermediate and functional additive in advanced chemical synthesis. Its unique molecular structure, featuring both phosphonothioate and aromatic disulfide linkages, provides valuable properties for modifying polymer characteristics and acting as a precursor for flame retardants and stabilizers. This chemical is essential for R&D laboratories and industrial manufacturers seeking to enhance material performance and develop novel specialty chemicals.

Application

• Polymer Additive & Modifier: Used as a reactive intermediate to impart flame retardancy, thermal stability, or anti-oxidative properties to engineering plastics and high-performance resins.
• Chemical Synthesis Intermediate: Serves as a key building block in the synthesis of more complex organophosphorus compounds, including ligands, catalysts, and bioactive molecules.
• Lubricant & Fuel Additive Precursor: Employed in the development of extreme-pressure additives and anti-wear agents for advanced lubricant formulations.
• Agricultural Chemical Intermediate: Acts as a precursor in the research and production of novel pesticides and plant growth regulators.
• Material Science Research: Utilized in academic and industrial R&D for developing new materials with tailored surface or bulk properties.

Basic Information

Product Name	[Dithiobis(4,1-Phenyleneoxy)]Bis(Phosphonothioic Acid O,o-Dimethyl) Ester
CAS No.	3356-57-8
Molecular Formula	C16H20O6P2S4
Molecular Weight	498.48 g/mol
Synonyms	Bis(4-((dimethoxyphosphinothioyl)oxy)phenyl) Disulfide; Phosphonothioic Acid, [Dithiobis(4,1-Phenyleneoxy)]bis-, O,O-Dimethyl Ester; O,O-Dimethyl [Dithiobis(4,1-Phenyleneoxy)]bis(Phosphonothioate); 4,4'-Dithiobis(phenylene) O,O-Dimethyl Phosphorothioate; Dimethyl [Dithiobis(4,1-Phenyleneoxy)]bis(Phosphonothioate); CAS 3356-57-8
EINECS	Contact for details

Quality Control

Our production of [Dithiobis(4,1-Phenyleneoxy)]Bis(Phosphonothioic Acid O,o-Dimethyl) Ester adheres to stringent quality management protocols to ensure batch-to-batch consistency and reliability. Each lot is analyzed using advanced techniques including HPLC, GC, and NMR to verify identity, purity, and the absence of critical impurities. A comprehensive Certificate of Analysis (COA) detailing all specification parameters is provided with every 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 at a controlled room temperature (15-25°C). This compound is easily oxidized; for long-term storage, consider keeping under an inert atmosphere such as nitrogen or argon. Keep away from strong bases and incompatible materials.

Specification

Item	Specification
Appearance	White to off-white crystalline powder or solid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Melting Point	Contact for details
Loss on Drying	≤ 1.0%
Residue on Ignition	≤ 0.5%

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