Description

Dimethylmethylphosphonite is a versatile organophosphorus compound that serves as a critical intermediate in advanced chemical synthesis. Its unique reactivity profile makes it an essential building block for creating complex molecules with high precision and efficiency. This product is primarily sought after by research institutions and industrial manufacturers in the agrochemical and pharmaceutical sectors for developing novel active ingredients and fine chemicals.

Application

• Agrochemical Intermediate: A key precursor in the synthesis of organophosphate insecticides, herbicides, and plant growth regulators.
• Pharmaceutical Synthesis: Used in the production of active pharmaceutical ingredients (APIs), particularly in constructing phosphorus-containing bioactive molecules.
• Ligand and Catalyst Preparation: Serves as a starting material for synthesizing specialized phosphonite ligands used in homogeneous catalysis, such as cross-coupling reactions.
• Flame Retardant Development: Employed in research and development of novel phosphorus-based flame retardant additives for polymers and materials.
• Chemical Research: A valuable reagent in academic and industrial R&D for exploring new organophosphorus chemistry and reaction pathways.
• Electronic Chemicals: Investigated for use in the synthesis of precursors for semiconductors and other electronic materials.

Basic Information

Product Name	Dimethylmethylphosphonite
CAS No.	20278-51-7
Molecular Formula	C3H9O2P
Molecular Weight	108.08 g/mol
Synonyms	Methylphosphonic Acid Dimethyl Ester; Dimethyl Methylphosphonite; Methyl Dimethylphosphonite; Methylphosphonous Acid Dimethyl Ester; (Methoxy-methyl-phosphanyloxy)methane; P-Methyl Dimethylphosphonite
EINECS	243-689-9

Quality Control

Our Dimethylmethylphosphonite is manufactured under stringent quality management systems. Every batch undergoes comprehensive analytical testing, including chromatography and spectroscopy, to ensure high purity and consistency. A detailed Certificate of Analysis (COA) is provided with each shipment, confirming compliance with agreed specifications. We support our clients' regulatory needs with full traceability and documentation.

Storage

Preserve in a tightly closed container, protected from light. Due to its hygroscopic (moisture-sensitive) nature and tendency to be easily oxidized, this material should be stored under an inert atmosphere (e.g., nitrogen or argon) in a cool, dry, and well-ventilated area. Recommended storage temperature is 2-8°C for long-term stability. Keep away from heat, sparks, and open flames.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (GC)	≥ 97.0%
Water Content (KF)	≤ 0.5%

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