Description

2-Hydroxyethyl 3-[(2-Hydroxyethoxy)Methylphosphinoyl]Propionate is a specialized organophosphorus compound with a unique bifunctional structure containing both phosphinate and ester groups. This molecular architecture makes it a valuable reactive intermediate and functional additive in advanced material synthesis. It is primarily sought by formulators and researchers in the polymer, coatings, and specialty chemical industries for applications requiring flame retardancy, adhesion promotion, or surface modification.

Application

• Flame Retardant Synergist: Acts as a reactive component in the synthesis of phosphorus-containing flame retardants for epoxy resins, polyurethanes, and unsaturated polyesters.
• Polymer Modification: Used as a comonomer or cross-linking agent to introduce phosphinate functionality into polymer backbones, enhancing thermal stability and char formation.
• Adhesion Promoter: Serves as a coupling agent in coatings and adhesives to improve bonding between organic polymers and inorganic substrates like metals or glass.
• Lubricant & Fuel Additive Intermediate: Employed in the production of high-performance phosphorus-based anti-wear and extreme pressure additives.
• Pharmaceutical & Agrochemical Intermediate: Utilized as a key building block in the synthesis of bioactive molecules containing phosphinate ester motifs.
• Surface Treatment Agent: Applied in formulations for textile and fiber treatment to impart flame-retardant and hydrophobic properties.

Basic Information

Item	Details
Product Name	2-Hydroxyethyl 3-[(2-Hydroxyethoxy)Methylphosphinoyl]Propionate
CAS No.	85187-18-4
Molecular Formula	C9H19O7P
Molecular Weight	270.22 g/mol
Synonyms	3-[(2-Hydroxyethoxy)methylphosphinoyl]propionic acid 2-hydroxyethyl ester; 2-Hydroxyethyl 3-[(2-hydroxyethoxy)(methyl)phosphinyl]propanoate; Methylphosphinic acid P-[(2-carboxyethoxy)methyl]- P'-(2-hydroxyethyl) ester; Bis(2-hydroxyethyl) methylphosphinoylpropionate; Contact for details for additional trade names.
EINECS	Contact for details

Quality Control

Our production of 2-Hydroxyethyl 3-[(2-Hydroxyethoxy)Methylphosphinoyl]Propionate adheres to a stringent quality management system. Each batch undergoes comprehensive analytical testing, including HPLC for purity and NMR/IR for structural confirmation, to ensure consistency and meet customer specifications. A Certificate of Analysis (COA) detailing all test results is provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). This product is hygroscopic (moisture-sensitive) and should be kept under an inert atmosphere (e.g., nitrogen) after opening to prevent degradation. Keep away from strong bases and incompatible materials.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Water Content (KF)	≤ 0.5%
Density (20°C)	~1.25 g/cm³
Refractive Index (20°C)	~1.470

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