Description

Methylphosphonothioic Dichloride is a key organophosphorus intermediate with significant reactivity due to its dichloride and thiophosphoryl functional groups. This compound is essential for the synthesis of specialized ligands, flame retardants, and agrochemicals, where precise molecular architecture is required. It is primarily sought by research institutions and manufacturers in the pharmaceutical, agrochemical, and specialty chemical industries for advanced synthetic applications.

Application

• Agrochemical Intermediate: A critical building block in the synthesis of organophosphate insecticides and herbicides.
• Flame Retardant Precursor: Used in the production of specialized phosphorus-based flame retardants for polymers and textiles.
• Pharmaceutical Synthesis: Serves as an intermediate in the development of novel active pharmaceutical ingredients (APIs) and prodrugs.
• Ligand and Catalyst Preparation: Employed in the creation of metal-complexing ligands for catalysis and material science.
• Chemical Research & Development: A valuable reagent for exploring new reaction pathways in organophosphorus chemistry.
• Specialty Polymer Modification: Used to introduce thiophosphoryl groups into polymer backbones to alter material properties.

Basic Information

Product Name	Methylphosphonothioic Dichloride
CAS No.	676-98-2
Molecular Formula	CH3Cl2OPS
Molecular Weight	164.97 g/mol
Synonyms	Methylphosphonothioic Dichloride; Methylphosphonothioic Dichloride; Methylphosphonothioyl Dichloride; Thiophosphonic Acid, Methyl-, Dichloride; Methylphosphonothioic Acid Dichloride; Methyl Thiophosphonic Dichloride; NSC 241279; Methylphosphonothioyl Dichloride
EINECS	211-639-5

Quality Control

Our Methylphosphonothioic Dichloride is produced under stringent quality management protocols. Each batch undergoes comprehensive analytical testing, including chromatographic purity analysis and spectroscopic identification, to ensure it meets exacting standards for research and industrial use. A detailed Certificate of Analysis (COA) is provided with every 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 a controlled room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature and reactivity as a strong acid/organic solvent, the container must be kept tightly sealed under an inert atmosphere such as nitrogen or argon to prevent hydrolysis and degradation. Keep away from incompatible materials like bases and oxidizing agents.

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Purity (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.