Description

Chloromethylphosphonothioic Dichloride is a highly reactive organophosphorus intermediate with significant industrial utility. Its value lies in its role as a versatile building block for synthesizing complex molecules, particularly in the agrochemical and pharmaceutical sectors. This compound is essential for manufacturers and R&D chemists developing advanced crop protection agents, specialized ligands, and novel chemical entities.

Application

• Agrochemical Synthesis: A key precursor in the manufacture of organophosphorus insecticides, herbicides, and fungicides.
• Pharmaceutical Intermediates: Used in the research and production of specialized active pharmaceutical ingredients (APIs).
• Chemical Research: Serves as a versatile reagent for constructing phosphonothioate and thiophosphonate derivatives in organic synthesis.
• Ligand and Catalyst Development: Employed in the synthesis of novel phosphorus-containing ligands for metal catalysis.
• Flame Retardant Precursor: Can be utilized in the development of specialized flame-retardant additives.
• Material Science: Acts as a monomer or cross-linking agent in the development of advanced polymeric materials.

Basic Information

Product Name	Chloromethylphosphonothioic Dichloride
CAS No.	1983-27-3
Molecular Formula	C1H2Cl3OPS
Molecular Weight	199.42 g/mol
Synonyms	Chloromethylphosphonothioic Dichloride; (Chloromethyl)phosphonothioic Dichloride; Thiophosphoryl Chloride, Chloromethyl-; Chloromethylphosphonothioyl Dichloride; Phosphonothioic Dichloride, Chloromethyl-; NSC 163082; Chloromethylphosphonothioic acid dichloride; Chloromethyl thiophosphonic dichloride
EINECS	217-861-5

Quality Control

Our Chloromethylphosphonothioic Dichloride is produced under stringent quality management protocols. Each batch undergoes comprehensive analytical testing, including chromatography and spectroscopy, to ensure high purity and consistency. A detailed Certificate of Analysis (COA) is provided with every shipment, confirming compliance with agreed specifications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area away from incompatible materials such as strong bases, amines, and oxidizing agents. Due to its nature as a strong acid/organic solvent and highly volatile compound, storage temperature should be maintained between 2°C and 8°C for optimal stability. Keep container tightly sealed under an inert atmosphere to minimize moisture ingress and degradation.

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (GC)	≥ 97.0%
Density (at 20°C)	~1.6 g/mL
Refractive Index (n20D)	Contact for details

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