Description

2,5-Bis[(1,1,3,3-Tetramethylbutyl)Dithio]-1,3,4-Thiadiazole CAS NO 19878-61-6 is a high-performance sulfur-containing heterocyclic compound, primarily valued as an effective antioxidant and metal deactivator in industrial applications. Its chemical structure provides excellent protection against oxidative degradation and thermal stress in hydrocarbon-based systems. This product is essential for manufacturers in the lubricant, fuel additive, and polymer stabilization industries seeking to enhance product longevity and performance under demanding conditions.

Application

• Lubricant and Grease Additive: Functions as a multifunctional antioxidant and anti-wear agent, protecting base oils and formulated lubricants from oxidation and thermal breakdown.
• Fuel Stabilizer and Antioxidant: Used in gasoline, diesel, and aviation fuels to prevent gum formation, inhibit oxidation, and improve storage stability.
• Polymer Stabilizer: Imparts antioxidant properties to synthetic rubbers, elastomers, and polyolefins, extending their service life.
• Metal Deactivator: Chelates metal ions (e.g., copper, iron) in hydrocarbon streams, preventing them from catalyzing oxidation reactions.
• Industrial Oil Additive: Protects transformer oils, turbine oils, and hydraulic fluids from oxidative degradation.
• Corrosion Inhibitor Intermediate: Serves as a key component in formulating corrosion inhibitor packages for various industrial applications.

Basic Information

Product Name	2,5-Bis[(1,1,3,3-Tetramethylbutyl)Dithio]-1,3,4-Thiadiazole
CAS No.	19878-61-6
Molecular Formula	C20H40N2S5
Molecular Weight	476.86 g/mol
Synonyms	2,5-Bis(tert-octyldithio)-1,3,4-thiadiazole; 2,5-Bis[(1,1,3,3-tetramethylbutyl)disulfanyl]-1,3,4-thiadiazole; tert-Octylthio-1,3,4-thiadiazole; Antioxidant 565; Irganox 565; LZ 565; AO-565; Vanlube 829
EINECS	243-384-2

Quality Control

Our production of 2,5-Bis[(1,1,3,3-Tetramethylbutyl)Dithio]-1,3,4-Thiadiazole adheres to stringent quality management protocols. Every batch undergoes comprehensive analytical testing, including HPLC for purity and GC for residual solvents, to ensure consistent performance and compliance with customer specifications. A detailed Certificate of Analysis (COA) is provided with each shipment, documenting key parameters such as assay, appearance, and melting point.

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 material is easily oxidized and should be kept under an inert atmosphere (e.g., nitrogen) for long-term storage to maintain efficacy. Keep away from strong oxidizing agents.

Specification

Item	Specification
Appearance	Light yellow to amber crystalline powder or flakes
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	90 - 95 °C
Loss on Drying	≤ 0.5%
Heavy Metals (as Pb)	≤ 10 ppm

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