Description

2,5-Bis(Octyldithio)-1,3,4-Thiadiazole is a high-performance sulfur-based organic compound widely recognized for its exceptional properties as an extreme pressure (EP) additive and antioxidant. This specialized chemical is engineered to enhance the durability and performance of industrial lubricants and greases under severe operating conditions. It is a critical component for formulators and manufacturers in the lubricant, metalworking, and automotive industries seeking to improve wear protection and thermal stability.

Application

• As a multifunctional extreme pressure (EP) and anti-wear (AW) additive in industrial gear oils, hydraulic fluids, and metalworking fluids.
• As a key performance additive in high-temperature greases for automotive and industrial bearings.
• As an effective antioxidant to inhibit oil degradation and sludge formation in lubricant formulations.
• In the formulation of specialty lubricants for mining, construction, and heavy machinery applications.
• As a friction modifier in advanced lubricant systems to improve energy efficiency.
• For the protection of metal surfaces under high load and boundary lubrication conditions.

Basic Information

Product Name	2,5-Bis(Octyldithio)-1,3,4-Thiadiazole
CAS No.	13539-13-4
Molecular Formula	C18H34N2S5
Molecular Weight	438.8 g/mol
Synonyms	2,5-Bis(octyldithio)-1,3,4-thiadiazole; 2,5-Bis(octylthio)-1,3,4-thiadiazole; 1,3,4-Thiadiazole, 2,5-bis(octyldithio)-; Lubricant Additive LZ 5340; Vanlube 829; Octyl dithio thiadiazole; EP Additive 13539-13-4; 2,5-Bis(octylmercapto)-1,3,4-thiadiazole
EINECS	Contact for details

Quality Control

Our production of 2,5-Bis(Octyldithio)-1,3,4-Thiadiazole adheres to stringent quality management protocols to ensure batch-to-batch consistency and performance reliability. Each lot is analyzed against comprehensive specifications using advanced analytical techniques. Certificates of Analysis (COA) documenting purity, assay, and key physical-chemical parameters are provided with every shipment to support your quality assurance processes.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). Keep away from strong oxidizing agents and heat sources. Under these conditions, the product remains stable for extended periods.

Specification

Item	Specification
Appearance	Yellow to brown viscous liquid
Identification (IR)	Conforms to standard
Assay (HPLC)	≥ 95.0%
Sulfur Content	Contact for details
Density (20°C)	~1.05 - 1.15 g/cm³
Flash Point	> 150 °C

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