Description

Methyldichlorophosphine is a highly reactive organophosphorus compound primarily used as a key synthetic intermediate. Its value lies in its ability to introduce the methylphosphine moiety into complex molecules, enabling the production of specialized ligands, flame retardants, and agrochemicals. This product is essential for R&D and manufacturing in the pharmaceutical, specialty chemical, and polymer industries where precise phosphorus chemistry is required.

Application

• Pharmaceutical Intermediate: Synthesis of active pharmaceutical ingredients (APIs) and novel drug candidates containing phosphorus.
• Ligand Precursor: Manufacture of phosphine ligands for catalysis, including those used in cross-coupling and hydrogenation reactions.
• Flame Retardant Synthon: Building block for creating organophosphorus flame retardants and plasticizers.
• Agrochemical Production: Intermediate in the synthesis of pesticides, herbicides, and other crop protection agents.
• Chemical Research: Valuable reagent in academic and industrial R&D for exploring new organophosphorus chemistry.
• Polymer Modification: Used to incorporate phosphorus groups into polymer backbones to alter material properties.

Basic Information

Product Name	Methyldichlorophosphine
CAS No.	676-83-5
Molecular Formula	CH3Cl2P
Molecular Weight	132.91 g/mol
Synonyms	Methylphosphonous dichloride; Dichloro(methyl)phosphine; Methylphosphonous dichloride; Methyldichlorophosphane; Methylphosphinous dichloride; CH3PCl2; Dichloromethylphosphine
EINECS	211-634-5

Quality Control

Our Methyldichlorophosphine is produced under stringent quality management systems to ensure batch-to-batch consistency and high purity. Each lot is analyzed using advanced techniques including GC and NMR to verify identity and assay. A comprehensive Certificate of Analysis (COA) detailing purity, impurity profile, and physical properties is provided with every shipment to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store under an inert atmosphere (e.g., nitrogen or argon) in a cool, dry, well-ventilated area, away from heat, moisture, and incompatible materials such as strong bases and oxidizers. Due to its highly volatile and easily oxidized nature, containers must be kept sealed and handled with appropriate precautions to prevent exposure to air and humidity.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (GC)	≥ 97.0%
Density (at 20°C)	1.35 - 1.40 g/mL
Boiling Point	81 - 83 °C

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