Description

Ethyl Dichlorothiophosphate is a key organophosphorus intermediate with significant utility in synthetic chemistry. This compound is valued for its reactivity as a thiophosphorylating agent, enabling the introduction of the P(S)Cl2 moiety into target molecules. It is primarily sought by manufacturers in the agrochemical and pharmaceutical sectors for the synthesis of advanced insecticides, pesticides, and other specialty chemicals. Its controlled reactivity profile makes it a critical building block for producing compounds with specific biological activities.

Application

• Agrochemical Intermediate: A crucial precursor in the synthesis of organophosphate insecticides and pesticides.
• Pharmaceutical Synthesis: Used as a thiophosphorylating reagent in the development of active pharmaceutical ingredients (APIs).
• Chemical Research & Development: Serves as a versatile reagent in academic and industrial R&D for novel compound libraries.
• Ligand and Catalyst Preparation: Employed in the preparation of specialized ligands for metal complexes and catalysts.
• Flame Retardant Synthon: Acts as a building block in the production of certain flame-retardant additives.
• Specialty Polymer Modification: Used to introduce phosphorus-containing functional groups into polymer chains.

Basic Information

Product Name	Ethyl Dichlorothiophosphate
CAS No.	14998-64-2
Molecular Formula	C2H5Cl2OPS
Molecular Weight	194.99 g/mol
Synonyms	Dichloro(ethoxy)phosphine sulfide; Ethoxyphosphonothioic dichloride; O-Ethyl phosphorodichloridothioate; Phosphorodichloridothioic acid O-ethyl ester; Ethyl phosphorodichloridothioate; Thiophosphoryl chloride, O-ethyl ester; NSC 84466
EINECS	239-077-7

Quality Control

Our Ethyl Dichlorothiophosphate is manufactured under strict process controls to ensure batch-to-batch consistency and high purity. Quality is verified through a comprehensive suite of analytical techniques including GC, HPLC, and NMR spectroscopy. A detailed Certificate of Analysis (COA) documenting identity, purity, and impurity profiles is provided with each shipment 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 and oxidizing agents. Due to its nature as a strong acid/organic solvent and highly volatile compound, it should be handled in a fume hood and containers must be kept tightly sealed when not in use. 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 (nD20)	1.510 - 1.520
Related Impurities (GC)	≤ 2.0% (total)

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