Description

Diisooctyl 2,2'-Tetrathiodiacetate is a specialized organosulfur compound, a diester of a tetrathiodiglycolic acid, known for its role as a versatile sulfur donor and crosslinking agent. This chemical matters for its ability to modify polymer properties, imparting enhanced thermal stability and specific rheological characteristics. It is primarily needed by manufacturers in the polymer and rubber industries, as well as by formulators developing specialty lubricant additives and chemical intermediates.

Application

• Rubber Vulcanization & Crosslinking: Acts as a sulfur donor and secondary accelerator in the vulcanization of various elastomers, improving crosslink density and heat resistance.
• Polymer Modification: Used to introduce disulfide linkages into polymer chains, modifying flexibility, thermal properties, and processability.
• Lubricant & Grease Additive: Functions as an extreme pressure (EP) and anti-wear additive in industrial lubricants and greases.
• Chemical Intermediate: Serves as a key building block in the synthesis of more complex sulfur-containing specialty chemicals.
• Sealant & Adhesive Formulations: Imparts improved durability and environmental resistance in high-performance sealants and adhesives.

Basic Information

Product Name	Diisooctyl 2,2'-Tetrathiodiacetate
CAS No.	26401-38-7
Molecular Formula	C20H38O4S4
Molecular Weight	494.8 g/mol
Synonyms	Bis(2-ethylhexyl) 2,2'-tetrathiodiacetate; 2,2'-Tetrathiodiacetic Acid Diisooctyl Ester; Di(2-ethylhexyl) Tetrathiodiglycolate; Tetrathiodiglycolic Acid Diisooctyl Ester; Diisooctyl Tetrathiodiglycolate; DTDA; Sulfur Donor Ester; CAS 26401-38-7
EINECS	Contact for details

Quality Control

Our Diisooctyl 2,2'-Tetrathiodiacetate is produced under a stringent quality management system. Each batch undergoes rigorous analytical testing to ensure consistency and compliance with agreed specifications. A comprehensive Certificate of Analysis (COA) detailing purity, identity, and key physical parameters is provided with every shipment to guarantee traceability and support your quality assurance protocols.

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 material is easily oxidized; for long-term storage, maintaining an inert atmosphere (e.g., under nitrogen) is recommended to preserve product integrity. Keep away from strong oxidizing agents.

Specification

Item	Specification
Appearance	Clear, pale yellow to amber liquid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Specific Gravity (20°C)	1.10 - 1.15
Refractive Index (20°C)	1.510 - 1.520
Water Content (KF)	≤ 0.5%

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