Description

Methylvinylphosphinic Acid is a versatile organophosphorus compound characterized by its reactive vinyl and phosphinic acid functional groups. This unique structure makes it a valuable intermediate for synthesizing specialized polymers, flame retardants, and ligands for metal catalysis. It is particularly sought after by R&D chemists and production specialists in the polymer, specialty chemical, and pharmaceutical industries for developing advanced materials with tailored properties.

Application

• Polymer Modification & Cross-linking Agent: Used to incorporate phosphorus-containing moieties into polymer backbones (e.g., polyesters, polyamides) to impart flame retardancy, adhesion promotion, or to create reactive sites for further functionalization.
• Flame Retardant Synergist & Precursor: Serves as a key building block for synthesizing novel, halogen-free organophosphorus flame retardants used in plastics, textiles, and coatings.
• Ligand Synthesis for Catalysis: Employed in the preparation of phosphinate and phosphine oxide ligands for transition metal catalysts used in hydroformylation, hydrogenation, and cross-coupling reactions.
• Pharmaceutical & Agrochemical Intermediates: Acts as a chiral building block or a phosphorus-containing pharmacophore in the research and development of new active ingredients.
• Surface Treatment & Adhesion Promoter: Can be used to modify metal or composite surfaces to improve corrosion resistance and paint adhesion.
• Specialty Monomer for Copolymers: The vinyl group allows for copolymerization with styrene, acrylates, and other monomers to create polymers with specific acid functionality or metal-chelating properties.

Basic Information

Product Name	Methylvinylphosphinic Acid
CAS No.	53314-64-0
Molecular Formula	C₃H₇O₂P
Molecular Weight	106.06 g/mol
Synonyms	Methylvinylphosphinic acid; (Ethenyl)(methyl)phosphinic acid; Vinylmethylphosphinic acid; Methylvinylphosphinous acid; Methylvinylphosphonous acid (common misnomer); Phosphinic acid, P-ethenyl-P-methyl-; 2-Propen-1-yl, 1-hydroxy-2-methyl-, 1-oxide
EINECS	Contact for details

Quality Control

Our Methylvinylphosphinic Acid is manufactured under a strict quality management system. Every batch undergoes rigorous analytical testing, including assay by titration or NMR, identification by FT-IR, and impurity profiling, to ensure it meets precise specifications for research and industrial use. A comprehensive Certificate of Analysis (COA) detailing purity, physical properties, and test results is provided with each shipment to guarantee traceability and consistency.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, 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 or argon) for long-term storage to prevent degradation. Keep away from strong bases and oxidizing agents.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (NMR/Titration)	≥ 95.0%
Water Content (KF)	≤ 1.0%
Density (at 20°C)	~1.15 g/cm³

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