Description

o-Ethyl-o-Phenylchlorothiophosphate is a specialized organophosphorus compound used as a key chemical intermediate. Its value lies in its reactive chlorothiophosphate group, which enables its use in the synthesis of more complex molecules. This product is primarily needed by manufacturers in the agrochemical and pharmaceutical industries for the development of active ingredients and fine chemicals.

Application

• Key intermediate in the synthesis of organophosphate insecticides and acaricides.
• Building block for pharmaceutical active ingredients, particularly in nerve agent antidote research.
• Precursor in the manufacture of flame retardants and plasticizers.
• Reagent in organic synthesis for introducing the thiophosphate moiety.
• Used in research and development of novel crop protection agents.
• Intermediate for specialty chemicals used in lubricant and polymer additives.

Basic Information

Product Name	o-Ethyl-o-Phenylchlorothiophosphate
CAS No.	38052-05-0
Molecular Formula	C8H10ClO2PS
Molecular Weight	236.65 g/mol
Synonyms	O-Ethyl O-Phenyl Chlorothiophosphate; Ethyl Phenyl Chlorothiophosphate; Phenyl Chloroethoxyphosphine Sulfide; Chloro(ethoxy)phenylphosphine Sulfide; Phosphorochloridothioic Acid, O-Ethyl O-Phenyl Ester; NSC 169021; ENT 27967; O,O-Diethyl Phenylphosphonochloridothioate (common misnomer)
EINECS	Contact for details

Quality Control

Our o-Ethyl-o-Phenylchlorothiophosphate is produced under strict quality management systems. Every batch undergoes comprehensive analytical testing to ensure identity, purity, and consistency. Certificates of Analysis (COA) documenting key parameters are provided and available upon request to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area. Due to its hygroscopic (moisture-sensitive) nature, containers must be kept tightly sealed under an inert atmosphere such as nitrogen or argon to prevent decomposition. Keep away from strong acids, bases, and oxidizing agents. Recommended storage temperature is 2-8°C for long-term stability.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to reference spectrum
Assay (HPLC)	≥ 97.0%
Water Content (KF)	≤ 0.5%
Related Substances (HPLC)	Total impurities ≤ 3.0%
Density (at 20°C)	~1.30 g/cm³

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