Description

Phosphonic acid, methyl-, bis(5-ethyl-2-methyl-2,2-dioxido-1,3,2-dioxaphosphorinan-5-yl)methyl ester, mixt. with (5-ethyl-2-methyl-2-oxido-1,3,2-dioxaphosphorinan-5-yl)methyl methyl methylphosphonate is a specialized organophosphorus compound designed for advanced material science and polymer applications. This chemical serves as a highly effective flame retardant and thermal stabilizer, offering superior performance in demanding environments. It is primarily utilized by formulators and manufacturers in the plastics, coatings, and specialty chemical industries seeking to enhance the safety and durability of their products.

Application

• As a high-performance flame retardant additive for engineering plastics and thermosetting resins.
• As a thermal stabilizer in polymer formulations to prevent degradation during high-temperature processing.
• In the production of fire-resistant coatings and paints for construction and industrial materials.
• As a key intermediate in the synthesis of specialty organophosphorus compounds for advanced material research.
• In the formulation of halogen-free flame retardant systems for electronics and wire & cable applications.
• For use in composite materials requiring enhanced fire safety and thermal properties.

Basic Information

Item	Details
Product Name	Phosphonic acid, methyl-, bis(5-ethyl-2-methyl-2,2-dioxido-1,3,2-dioxaphosphorinan-5-yl)methyl ester, mixt. with (5-ethyl-2-methyl-2-oxido-1,3,2-dioxaphosphorinan-5-yl)methyl methyl methylphosphonate
CAS No.	170836-68-7
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	Methylphosphonic acid, bis(5-ethyl-2-methyl-2,2-dioxido-1,3,2-dioxaphosphorinan-5-yl)methyl ester mixture with (5-ethyl-2-methyl-2-oxido-1,3,2-dioxaphosphorinan-5-yl)methyl methyl methylphosphonate; Phosphonic acid, P-methyl-, P,P-bis[(5-ethyl-2-methyl-2,2-dioxido-1,3,2-dioxaphosphorinan-5-yl)methyl] ester, mixture with P-[(5-ethyl-2-methyl-2-oxido-1,3,2-dioxaphosphorinan-5-yl)methyl] P,P-dimethyl ester; Flame Retardant 170836-68-7; Cyclic methylphosphonate ester mixture; Organophosphorus flame retardant additive.
EINECS	Contact for details

Quality Control

Our production of this organophosphorus compound adheres to strict quality management protocols to ensure batch-to-batch consistency and performance reliability. All materials undergo rigorous analytical testing, including HPLC, NMR, and FTIR for identity confirmation and purity assessment. A comprehensive Certificate of Analysis (COA) detailing assay, impurity profile, and physical specifications is provided with each shipment to support your quality assurance and regulatory compliance needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). Keep away from heat, sparks, and open flame. The container must be kept tightly closed to prevent moisture absorption and contamination.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to reference spectrum
Assay (HPLC)	≥ 95.0%
Water Content (KF)	≤ 0.5%
Phosphorus Content	Contact for details
Viscosity (25°C)	Contact for details
Density (20°C)	Contact for details

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