Description

Phosphorodithioic Acid, S-(2,3-Epithiopropyl) o-(2-Ethylbutyl) o-Octadecyl Ester is a specialized organosulfur compound that functions as a high-performance additive and intermediate. Its unique molecular structure, featuring both dithiophosphate and epithio functional groups, provides exceptional properties for modifying material performance and enabling advanced chemical synthesis. This product is essential for manufacturers in the polymer and lubricant industries seeking to enhance product durability and stability under demanding conditions.

Application

• As a multifunctional additive in advanced lubricant and grease formulations to provide extreme pressure (EP) and anti-wear properties.
• As a key intermediate in the synthesis of specialized agrochemicals, such as pesticides and fungicides.
• As a polymer modifier and cross-linking agent in the production of specialty rubbers and elastomers to improve heat and chemical resistance.
• As a corrosion inhibitor and stabilizer in industrial metalworking fluids and hydraulic oils.
• As a chemical building block for research and development in novel organophosphorus chemistry and material science.
• As a potential vulcanization accelerator or co-agent in the rubber curing process.

Basic Information

Product Name	Phosphorodithioic Acid, S-(2,3-Epithiopropyl) o-(2-Ethylbutyl) o-Octadecyl Ester
CAS No.	3285-10-7
Molecular Formula	C₂₇H₅₅O₂PS₂
Molecular Weight	506.8 g/mol
Synonyms	S-(2,3-Epithiopropyl) O-(2-ethylbutyl) O-octadecyl phosphorodithioate; O-(2-Ethylbutyl) O-octadecyl S-(2,3-epithiopropyl) phosphorodithioate; Phosphorodithioic acid, O-(2-ethylbutyl) O-octadecyl S-(2,3-epithiopropyl) ester; 2-Ethylbutyl octadecyl (2,3-epithiopropyl) phosphorodithioate; Epithiopropyl dialkyl dithiophosphate; CAS 3285-10-7
EINECS	Contact for details

Quality Control

Our production of Phosphorodithioic Acid, S-(2,3-Epithiopyl) o-(2-Ethylbutyl) o-Octadecyl Ester adheres to stringent quality management protocols to ensure batch-to-batch consistency and reliability. All materials are subjected to rigorous analytical testing, including chromatography and spectroscopy, to verify identity, purity, and absence of critical impurities. A comprehensive Certificate of Analysis (COA) detailing all specification parameters is provided with each shipment to support your quality assurance processes.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). Keep away from strong bases and incompatible materials such as strong oxidizing agents. The product is light-sensitive; prolonged exposure to light should be avoided to maintain stability.

Specification

Item	Specification
Appearance	Clear to pale yellow viscous liquid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Water Content (KF)	≤ 0.5%
Specific Gravity (20°C)	0.95 - 1.00
Refractive Index (20°C)	1.480 - 1.510

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