Description

O,O'-Diethyl Methylphosphonothioate is a key organophosphorus chemical intermediate with significant utility in advanced synthesis. Its primary value lies in its role as a versatile building block for the production of specialized compounds, including certain pesticides and flame retardants. This product is essential for R&D laboratories and manufacturers in the agrochemical and specialty chemical industries seeking to develop or produce high-performance active ingredients.

Application

• Agrochemical Intermediate: A critical precursor in the synthesis of certain organophosphate insecticides and acaricides.
• Flame Retardant Synthesis: Used as a building block in the production of phosphorus-based flame retardants for polymers and textiles.
• Chemical Research & Development: Serves as a valuable starting material for novel organophosphorus compound discovery in academic and industrial labs.
• Ligand and Catalyst Preparation: Employed in the synthesis of specialized ligands for metal catalysis and coordination chemistry.
• Pharmaceutical Intermediate: Potential use in the synthetic pathways for certain pharmacologically active molecules.

Basic Information

Product Name	O,O'-Diethyl Methylphosphonothioate
CAS No.	6996-81-2
Molecular Formula	C5H13O2PS
Molecular Weight	168.19 g/mol
Synonyms	Methylphosphonothioic Acid O,O-Diethyl Ester; Diethyl Methylphosphonothioate; O,O-Diethyl Methylphosphonothioate; Methylphosphonothioic Acid Diethyl Ester; Diethyl (Methyl)phosphonothioate; Phosphonothioic Acid, Methyl-, O,O-Diethyl Ester; NSC 169099
EINECS	230-269-9

Quality Control

Our O,O'-Diethyl Methylphosphonothioate is produced under strict quality management protocols. Each batch undergoes comprehensive analytical testing, including GC, HPLC, and NMR, to ensure identity, purity, and consistency. A detailed Certificate of Analysis (COA) is provided with every shipment, confirming the product meets agreed specifications for your application.

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 2°C and 25°C. Keep container tightly sealed when not in use to prevent moisture absorption and degradation.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (GC)	≥ 97.0%
Water Content (KF)	≤ 0.5%
Related Substances (GC)	≤ 2.0% total

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