Description

Thiophosphoric Acid O,o-Diethyl o-[2-(Ethylsulfinyl)Ethyl] Ester is a specialized organophosphorus compound that serves as a critical intermediate in advanced chemical synthesis. Its unique structure, featuring both phosphorothioate and sulfinyl groups, makes it a valuable precursor for developing active ingredients in crop protection and pharmaceutical research. This high-purity intermediate is essential for manufacturers and R&D laboratories focused on creating novel agrochemicals, pharmaceuticals, and performance chemicals where precise molecular architecture is required.

Application

• Agrochemical Intermediate: A key building block in the synthesis of next-generation insecticides and acaricides.
• Pharmaceutical Research: Used as a sophisticated synthon for developing potential drug candidates and bioactive molecules.
• Chemical Synthesis: Serves as a versatile intermediate for creating complex organophosphorus ligands and functional materials.
• Pesticide Formulation R&D: Employed in research and development for novel, more selective pest control agents.
• Biochemistry Studies: Utilized in biochemical research as a probe or inhibitor for studying enzyme mechanisms.

Basic Information

Product Name	Thiophosphoric Acid O,o-Diethyl o-[2-(Ethylsulfinyl)Ethyl] Ester
CAS No.	5286-73-7
Molecular Formula	C8H19O4PS2
Molecular Weight	274.33 g/mol
Synonyms	O,O-Diethyl O-[2-(ethylsulfinyl)ethyl] phosphorothioate; Phosphorothioic acid, O,O-diethyl O-[2-(ethylsulfinyl)ethyl] ester; Ethylsulfinylethyl diethyl thiophosphate; 2-(Ethylsulfinyl)ethanol diethyl thiophosphate; Diethyl (2-ethylsulfinylethyl) thiophosphate; CAS 5286-73-7
EINECS	226-109-5

Quality Control

Our production of Thiophosphoric Acid O,o-Diethyl o-[2-(Ethylsulfinyl)Ethyl] Ester adheres to stringent quality management protocols to ensure batch-to-batch consistency and high purity. Each lot is analyzed using advanced chromatographic and spectroscopic techniques (HPLC, GC, NMR) to verify identity, potency, and impurity profiles. A comprehensive Certificate of Analysis (COA) detailing all test results is provided with every shipment, ensuring full traceability and compliance with your internal quality standards.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at a controlled room temperature (15-25°C). This compound is light-sensitive and easily oxidized; for long-term storage, consider maintaining under an inert atmosphere (e.g., nitrogen or argon) to preserve stability and prevent degradation. Keep away from heat, sparks, and open flame.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 97.0%
Related Substances (HPLC)	Total impurities ≤ 3.0%
Water Content (KF)	≤ 0.5%
Specific Gravity (20°C)	1.180 - 1.220
Refractive Index (20°C)	1.480 - 1.500

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