Description

3,3'-[1,2-Ethanediylbis(Thio)]Bis[2-Methylpropanoic Acid]Bis[3-[3,5-Bis(1,1-Dimethylethyl)-4-Hydroxyphenyl]-2,2-Dimethylpropyl] Ester is a high-performance, sulfur-bridged phenolic antioxidant ester. This compound is engineered to provide exceptional long-term thermal and oxidative stability to polymers and synthetic materials by effectively scavenging free radicals. It is a critical additive for manufacturers in the plastics, rubber, and synthetic lubricant industries who require reliable protection against degradation under demanding conditions.

Application

• Polymer Stabilization: Primary antioxidant for polyolefins (PP, PE), engineering plastics, and synthetic rubbers to prevent thermal-oxidative degradation during processing and service life.
• Synthetic Lubricants & Greases: Essential additive in high-temperature engine oils, industrial lubricants, and greases to extend fluid life and maintain viscosity.
• Adhesives & Sealants: Enhances the durability and shelf-life of hot-melt adhesives, polyurethane systems, and elastomeric sealants.
• Thermoplastic Elastomers (TPEs): Provides stability in styrenic block copolymers and other TPEs used in automotive and consumer goods.
• Wire & Cable Insulation: Used in polyethylene and cross-linked polyethylene (XLPE) compounds to protect insulation from heat aging.
• Masterbatch Production: A key active component in antioxidant and stabilizer concentrate masterbatches for easy dispersion in polymers.

Basic Information

Product Name	3,3'-[1,2-Ethanediylbis(Thio)]Bis[2-Methylpropanoic Acid]Bis[3-[3,5-Bis(1,1-Dimethylethyl)-4-Hydroxyphenyl]-2,2-Dimethylpropyl] Ester
CAS No.	62546-75-2
Molecular Formula	C58H88O6S2
Molecular Weight	929.45 g/mol
Synonyms	Bis[3-[3,5-bis(1,1-dimethylethyl)-4-hydroxyphenyl]-2,2-dimethylpropyl] 3,3'-[1,2-ethanediylbis(thio)]bis[2-methylpropanoate]; Antioxidant 1035; Ethanediylbis(thio)bis[2-methylpropanoic acid] bis[3-(3,5-di-tert-butyl-4-hydroxyphenyl)-2,2-dimethylpropyl] ester; Irganox 1035; 3,3'-Thiodipropionic Acid Derivative; Sulfur-containing phenolic antioxidant; Bis(3,5-di-tert-butyl-4-hydroxybenzyl) thiodipropionate derivative
EINECS	Contact for details

Quality Control

Every batch of our antioxidant is produced under a strict quality management system and undergoes rigorous analytical testing to ensure it meets the high-purity standards required for industrial applications. We provide comprehensive Certificates of Analysis (COA) with each shipment, detailing key parameters such as assay, melting point, and impurity profiles. Our commitment to consistent quality and traceability ensures reliable performance in your formulations.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). This product is easily oxidized; for long-term storage, consider maintaining an inert atmosphere (e.g., nitrogen blanket) in the container headspace. Keep away from heat sources and incompatible materials.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to reference spectrum
Assay (HPLC)	≥ 98.0 %
Melting Point	63 - 67 °C
Loss on Drying	≤ 0.5 %
Ash Content	≤ 0.1 %

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