Description

1-Mercapto-2-(4-Nonylphenoxy)Ethyl Hydrogen Phosphorodithioate is a specialized organophosphorus compound with a unique structure combining a nonylphenol ether group with a dithiophosphoric acid moiety. This compound is valued for its dual functionality as a high-performance antioxidant and extreme pressure (EP) additive, offering superior thermal stability and anti-wear properties. It is primarily utilized by formulators in the lubricant and metalworking fluid industries seeking to enhance the longevity and performance of their products under severe operating conditions.

Application

• Primary antioxidant and anti-wear additive in industrial lubricants and greases.
• Key component in extreme pressure (EP) additives for gear oils and hydraulic fluids.
• Performance additive in metalworking fluids to reduce tool wear and improve surface finish.
• Stabilizer and antioxidant in synthetic base oils and formulations.
• Additive for rust and oxidation (R&O) inhibited oils.
• Component in specialty polymer stabilizer packages.

Basic Information

Product Name	1-Mercapto-2-(4-Nonylphenoxy)Ethyl Hydrogen Phosphorodithioate
CAS No.	65045-86-5
Molecular Formula	C₁₇H₂₉O₂PS₃
Molecular Weight	416.57 g/mol
Synonyms	Nonylphenoxy Ethyl Phosphorodithioate; 2-((4-Nonylphenoxy)methylthio)ethyl dihydrogen phosphorodithioate; Phosphorodithioic acid, O-[2-[(4-nonylphenoxy)methylthio]ethyl] ester; Antioxidant 353; Lubricant additive 65045-86-5; Vanlube 883; (4-Nonylphenoxymethylthio)ethyl phosphorodithioate
EINECS	Contact for details

Quality Control

Our production of 1-Mercapto-2-(4-Nonylphenoxy)Ethyl Hydrogen Phosphorodithioate adheres to stringent quality management protocols. Each batch is analyzed to ensure consistent chemical composition, purity, and performance characteristics. Certificates of Analysis (COA) detailing assay, impurity profile, and physical properties are provided with every shipment to guarantee compliance with your technical specifications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). This product is easily oxidized; for long-term storage, maintaining an inert atmosphere (e.g., under nitrogen) is recommended to preserve efficacy. Keep away from strong oxidizing agents.

Specification

Item	Specification
Appearance	Clear, viscous liquid
Color	Pale yellow to amber
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Active Sulfur Content	Contact for details
Phosphorus Content	Contact for details
Density (20°C)	~1.10 - 1.15 g/cm³
Viscosity (40°C)	Contact for details
Flash Point	> 150 °C

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