Description

Dithiophosphoric Acid o-Ethyl o-Methyl S-(2-Ethylthioethyl) Ester is a specialized organophosphorus compound that serves as a critical intermediate and functional additive in advanced chemical synthesis. Its unique molecular structure, featuring both phosphorodithioate and thioether groups, provides valuable properties for modifying material characteristics and facilitating specific chemical reactions. This high-purity chemical is essential for manufacturers and R&D laboratories in the agrochemical, polymer, and lubricant industries seeking to develop products with enhanced performance.

Application

• Key intermediate in the synthesis of organophosphate insecticides and acaricides.
• Performance additive and extreme pressure (EP) agent in advanced lubricant and grease formulations.
• Chemical intermediate for the production of specialty surfactants and flotation agents used in mineral processing.
• Precursor in polymer chemistry for creating functionalized monomers or as a chain transfer agent.
• Research and development of novel agrochemicals and pharmaceutical active ingredients.
• Component in metalworking fluids and corrosion inhibitor packages.
• Used in the synthesis of vulcanization accelerators for the rubber industry.

Basic Information

Product Name	Dithiophosphoric Acid o-Ethyl o-Methyl S-(2-Ethylthioethyl) Ester
CAS No.	7421-50-3
Molecular Formula	C7H17O2PS3
Molecular Weight	260.38 g/mol
Synonyms	O-Ethyl O-Methyl S-(2-Ethylthioethyl) Phosphorodithioate; S-2-(Ethylthio)ethyl O-ethyl O-methyl phosphorodithioate; Phosphorodithioic acid, O-ethyl O-methyl S-2-(ethylthio)ethyl ester; CAS 7421-50-3; Ethyl methyl S-(2-ethylthioethyl) phosphorodithioate
EINECS	Contact for details

Quality Control

Our Dithiophosphoric Acid o-Ethyl o-Methyl S-(2-Ethylthioethyl) Ester is manufactured under strict quality management systems to ensure batch-to-batch consistency and high purity. Each lot undergoes comprehensive analytical testing, including chromatography and spectroscopic methods, to verify identity, potency, and impurity profiles. A Certificate of Analysis (COA) detailing all specifications is provided with every shipment to support your quality assurance and regulatory compliance needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). This product is hygroscopic (moisture-sensitive) and should be kept under an inert atmosphere such as nitrogen after opening to prevent degradation. Keep away from strong bases and incompatible materials.

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Water Content (KF)	≤ 0.5%
Specific Gravity (20°C)	1.18 - 1.22
Refractive Index (20°C)	1.530 - 1.540

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