Description

2,2'-Oxybis[5,5-Dimethyl-4-Propyl-1,3,2-Dioxaphosphorinane] 2,2'-Disulphide is a specialized organophosphorus compound featuring a unique cyclic structure with a disulfide linkage. This chemical serves as a high-performance intermediate and additive, valued for its ability to impart specific chemical functionalities and stability. It is primarily sought by manufacturers in the polymer, lubricant, and specialty chemical industries for applications requiring advanced phosphorus-sulfur chemistry.

Application

• As a key intermediate in the synthesis of advanced flame retardants and stabilizers for polymers and plastics.
• As a multifunctional additive in high-performance lubricants and greases, providing anti-wear and extreme pressure properties.
• In the production of specialized agrochemicals, such as pesticides and herbicides, where its structure contributes to biological activity.
• As a chemical building block for novel ligands and catalysts used in organic synthesis and material science research.
• As a stabilizer or co-stabilizer in polyolefins and other polymers to enhance thermal and oxidative resistance.
• In the formulation of specialty adhesives and sealants where chemical resistance and durability are critical.

Basic Information

Product Name	2,2'-Oxybis[5,5-Dimethyl-4-Propyl-1,3,2-Dioxaphosphorinane] 2,2'-Disulphide
CAS No.	58948-24-6
Molecular Formula	C18H36O5P2S2
Molecular Weight	466.54 g/mol
Synonyms	Bis(5,5-dimethyl-4-propyl-1,3,2-dioxaphosphorinanyl) disulfide oxide; 2,2'-Dithiobis(5,5-dimethyl-4-propyl-1,3,2-dioxaphosphorinane) 2,2'-dioxide; Cyclic phosphonate disulfide; 1,3,2-Dioxaphosphorinane disulfide derivative; Antioxidant PDS; FR-PDS; Lubricant Additive PDS
EINECS	Contact for details

Quality Control

Our production of 2,2'-Oxybis[5,5-Dimethyl-4-Propyl-1,3,2-Dioxaphosphorinane] 2,2'-Disulphide adheres to stringent quality management protocols. Every batch undergoes comprehensive analytical testing to ensure identity, purity, and consistency meet the high standards required for industrial and research applications. Certificates of Analysis (COA) documenting key parameters are provided with each shipment and are available upon request.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). Keep away from heat, sparks, and open flame. Due to its light-sensitive nature, containers should be opaque or stored in dark conditions to maintain product integrity.

Specification

Item	Specification
Appearance	White to off-white crystalline powder or solid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 97.0%
Melting Point	Contact for details
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%

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