Description

Bis[(5-Ethyl-2-Methyl-1,3,2-Dioxaphosphorinan-5-Yl)Methyl] Methyl Phosphonate P,P'-Dioxide is a specialized organophosphorus compound, a phosphonate ester dioxide, valued for its role as a key intermediate and functional additive in advanced material synthesis. Its unique bicyclic structure and phosphorus centers make it a versatile building block for creating flame retardants, polymer modifiers, and ligands for metal complexation. This high-purity chemical is essential for R&D and production in sectors requiring precise molecular architecture, such as specialty polymers, advanced electronics, and performance additives.

Application

• Flame Retardant Synthon: A critical intermediate in the synthesis of novel, high-efficiency halogen-free flame retardants for engineering plastics and epoxy resins.
• Polymer Modification: Used to incorporate phosphorus functionalities into polymer backbones to enhance thermal stability, adhesion, and flame resistance.
• Ligand for Metal Complexes: Serves as a chelating agent or ligand precursor in catalysis and for creating metal-organic frameworks (MOFs) with specific properties.
• Additive for Specialty Materials: Functions as a stabilizer or performance additive in advanced lubricants, coatings, and electronic encapsulants.
• Pharmaceutical & AgroChemical Intermediate: Employed in the research and development of active ingredients requiring specific phosphonate ester motifs.
• Crosslinking Agent: Potential use in creating crosslinked networks in thermosetting resins to improve mechanical and thermal properties.

Basic Information

Product Name	Bis[(5-Ethyl-2-Methyl-1,3,2-Dioxaphosphorinan-5-Yl)Methyl] Methyl Phosphonate P,P'-Dioxide
CAS No.	42595-45-9
Molecular Formula	C17H34O8P2
Molecular Weight	452.38 g/mol
Synonyms	Methylphosphonic acid, P,P'-[methylenebis(5-ethyl-2-methyl-1,3,2-dioxaphosphorinan-5-ylmethylene)] ester, P,P'-dioxide; Bis(5-ethyl-2-methyl-1,3,2-dioxaphosphorinan-5-ylmethyl) methylphosphonate dioxide; Phosphonic acid, methyl-, P,P'-[methylenebis[(5-ethyl-2-methyl-5-methylene-1,3,2-dioxaphosphorinan-2-yl)]] ester, P,P'-dioxide; Methylenebis(5-ethyl-2-methyl-1,3,2-dioxaphosphorinan-5-ylmethyl methylphosphonate) dioxide.
EINECS	Contact for details

Quality Control

Our Bis[(5-Ethyl-2-Methyl-1,3,2-Dioxaphosphorinan-5-Yl)Methyl] Methyl Phosphonate P,P'-Dioxide is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing including HPLC for purity, NMR for structural confirmation, and Karl Fischer titration for moisture content to ensure it meets precise customer specifications. Certificates of Analysis (COA) documenting all critical parameters are provided with every shipment.

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 strong oxidizing agents and strong bases. For long-term storage, consider an inert atmosphere 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
Water Content (KF)	≤ 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.