Description

Ethylphosphonothioic Dichloride is a key organophosphorus intermediate characterized by its reactive dichloride and thiophosphoryl functional groups. This compound matters for its role as a versatile building block in the synthesis of specialized chemicals, offering a pathway to introduce phosphonothioate motifs. It is primarily needed by manufacturers in the agrochemical and pharmaceutical industries for developing active ingredients and novel molecular entities.

Application

• Key intermediate in the synthesis of organophosphorus insecticides and herbicides.
• Building block for pharmaceutical agents, particularly those targeting the nervous system.
• Precursor for flame retardants and polymer additives.
• Used in research and development of novel ligands and catalysts for metal coordination chemistry.
• Starting material for the production of lubricant and fuel additives.
• Intermediate in the manufacture of extraction agents for metal ion separation.

Basic Information

Product Name	Ethylphosphonothioic Dichloride
CAS No.	993-43-1
Molecular Formula	C2H5Cl2OPS
Molecular Weight	178.99 g/mol
Synonyms	Ethylphosphonothioic Dichloride; Ethylphosphonothioyl Dichloride; Dichloro(ethyl)phosphine Sulfide; Ethylphosphonothioic Acid Dichloride; NSC 405122; Ethylphosphonothioyl Chloride; O-Ethyl Phosphonothioic Dichloride; Ethyl Thiophosphonic Dichloride
EINECS	213-598-6

Quality Control

Our Ethylphosphonothioic Dichloride is produced under stringent quality management systems. Each batch undergoes rigorous analytical testing, including GC and NMR analysis, to ensure high purity and consistency. Certificates of Analysis (COA) detailing purity, identity, and impurity profiles are available upon request to support your quality assurance protocols.

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, oxidizers, and moisture. Due to its nature as a strong acid/organic solvent, handle with appropriate engineering controls and personal protective equipment. Recommended storage temperature is 2-8°C for extended stability.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (GC)	≥ 97.0%
Density (at 20°C)	1.40 - 1.45 g/mL
Refractive Index (n20D)	1.510 - 1.520

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