Description

2,2'-[(2,2-Dimethylpropane-1,3-Diyl)Bis(Oxy)]Bis[5,5-Dimethyl-1,3,2-Dioxaphosphorinane] 2,2'-Dioxide is a specialized organophosphorus compound, specifically a cyclic phosphonate ester, valued for its role as a high-performance additive and intermediate. Its molecular structure provides excellent thermal stability and compatibility with various polymer matrices, making it a critical component for enhancing material properties. This chemical is primarily sought by manufacturers in the polymer, flame retardant, and specialty chemical industries for advanced material formulation.

Application

• Polymer Additive: Acts as a flame retardant synergist and thermal stabilizer in engineering plastics, polyurethanes, and epoxy resins.
• Lubricant & Hydraulic Fluid Component: Used as an anti-wear and extreme pressure additive in advanced synthetic lubricants and hydraulic fluids.
• Chemical Intermediate: Serves as a key building block for synthesizing more complex organophosphorus compounds with tailored functionalities.
• Flame Retardant Formulations: Incorporated into coatings, textiles, and composites to improve fire resistance and meet safety regulations.
• Stabilizer for Specialty Polymers: Enhances the long-term thermal-oxidative stability of high-performance polymers.

Basic Information

Product Name	2,2'-[(2,2-Dimethylpropane-1,3-Diyl)Bis(Oxy)]Bis[5,5-Dimethyl-1,3,2-Dioxaphosphorinane] 2,2'-Dioxide
CAS No.	70942-40-4
Molecular Formula	C17H34O8P2
Molecular Weight	452.38 g/mol
Synonyms	Bis(5,5-dimethyl-2-oxido-1,3,2-dioxaphosphorinan-2-yl) 2,2-dimethylpropane-1,3-diyl ether; 2,2'-Oxybis(5,5-dimethyl-1,3,2-dioxaphosphorinane) 2,2'-dioxide derivative; Cyclic neopentyl glycol phosphonate; P,P'-Dioxide of neopentyl glycol bisphosphite; Neopentyl glycol cyclic phosphonate dioxide; ADK STAB PEP-8 (related trade compound); Antioxidant PEP-8; Phosphite stabilizer derivative
EINECS	Contact for details

Quality Control

Our production of 2,2'-[(2,2-Dimethylpropane-1,3-Diyl)Bis(Oxy)]Bis[5,5-Dimethyl-1,3,2-Dioxaphosphorinane] 2,2'-Dioxide adheres to stringent quality management protocols. Every batch undergoes rigorous analytical testing, including assay, identity confirmation, and impurity profiling, to ensure high purity and consistent performance. Certificates of Analysis (COA) detailing all specifications are provided to guarantee traceability and compliance with your technical requirements.

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). This product is hygroscopic (moisture-sensitive). Keep the container tightly sealed under an inert atmosphere (e.g., nitrogen) when not in use to prevent moisture absorption and degradation.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to reference spectrum
Assay (HPLC)	≥ 98.0%
Melting Point	Contact for details
Loss on Drying	≤ 0.5%
Heavy Metals (as Pb)	≤ 10 ppm

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