Description

O,O,o-Triethylphosphorothioate is a versatile organophosphorus compound with the CAS number 126-68-1. It serves as a critical intermediate in the synthesis of various agrochemicals and pharmaceuticals, valued for its reactivity and specific structural motif. This chemical is essential for manufacturers and R&D facilities in the agrochemical, pharmaceutical, and specialty chemical industries seeking to develop new active ingredients or complex molecules.

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.
• Used in chemical research and development for creating novel phosphorus-containing ligands.
• Intermediate for specialty chemicals used in lubrication and material science.
• Starting material for the synthesis of other thiophosphate esters.

Basic Information

Product Name	O,O,o-Triethylphosphorothioate
CAS No.	126-68-1
Molecular Formula	C6H15O3PS
Molecular Weight	198.22 g/mol
Synonyms	Phosphorothioic acid, O,O,o-triethyl ester; Triethyl phosphorothioate; O,O,O-Triethyl thiophosphate; Ethyl phosphorothioate; TEPT; NSC 8858; ENT 25648; Triethyl thiophosphate
EINECS	204-799-3

Quality Control

Our O,O,o-Triethylphosphorothioate is produced under stringent quality management systems. Each batch undergoes rigorous analytical testing to ensure high purity and consistency, meeting the specifications required for advanced synthetic applications. A comprehensive Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is provided with every 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. Recommended storage temperature is between 15°C and 25°C. Keep container tightly sealed when not in use to prevent moisture absorption and volatilization.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (GC)	≥ 97.0%
Water Content (KF)	≤ 0.5%
Refractive Index (n20D)	1.430 - 1.440
Density (20°C)	1.070 - 1.090 g/mL

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