Description

O,O,S-Triethyl Phosphorothioate is a specialized organophosphorus compound with the CAS registry number 1186-09-0. This chemical serves as a critical intermediate in the synthesis of advanced agrochemicals and pharmaceuticals, where precise molecular structure is paramount. It is primarily required by research institutions and industrial manufacturers engaged in developing novel pesticides, insecticides, and biologically active molecules.

Application

• Agrochemical Intermediate: A key building block in the synthesis of organophosphate insecticides and pesticides.
• Pharmaceutical Research: Used as a precursor or intermediate in medicinal chemistry for developing new therapeutic agents.
• Chemical Synthesis: Employed in organic synthesis laboratories for constructing complex phosphorothioate esters.
• Material Science: Investigated for potential use in flame retardants or specialty polymer additives.
• Biochemical Studies: Utilized as a model compound or reagent in enzymatic and metabolic pathway studies.

Basic Information

Product Name	O,O,S-Triethyl Phosphorothioate
CAS No.	1186-09-0
Molecular Formula	C6H15O3PS
Molecular Weight	198.22 g/mol
Synonyms	Phosphorothioic acid, O,O,S-triethyl ester; Triethyl phosphorothioate; O,O,S-Triethyl thiophosphate; Ethyl phosphorothioate; ENT 25,671; NSC 403689; O,O,S-Triethyl ester of phosphorothioic acid; Thiophosphoric acid triethyl ester (mixed isomer)
EINECS	214-682-6

Quality Control

Our O,O,S-Triethyl Phosphorothioate is manufactured under strict quality management systems. Each batch undergoes comprehensive analytical testing, including chromatographic purity analysis and structural confirmation, to ensure it meets exacting standards for research and industrial use. A detailed Certificate of Analysis (COA) is provided with every shipment, documenting key parameters such as assay, identity, and impurity profile.

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 organic solvents. Recommended storage temperature is between 15°C and 25°C. Keep container tightly sealed when not in use to prevent degradation.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 97.0%
Water Content (KF)	≤ 0.5%
Refractive Index (n20D)	1.450 - 1.460
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.