Description

Thiobis[2-(1,1-Dimethylethyl)-5-Methyl-4,1-Phenylene] Bis[3-(Tetradecylthio)Propionate] is a high-performance, high-molecular-weight phenolic antioxidant and thioester synergist. This compound is specifically engineered to provide exceptional long-term thermal stability and oxidative protection for polymers and synthetic materials. It is a critical additive for manufacturers requiring durable, high-quality polymer products that must withstand demanding processing and end-use environments. Key industries that rely on this antioxidant include plastics, synthetic fibers, and elastomers.

Application

• Polyolefin Stabilization: Primary application as a long-term heat stabilizer and antioxidant for polypropylene (PP) and polyethylene (PE) resins, preventing degradation during processing and service life.
• Engineering Plastics: Used in high-temperature engineering plastics such as polyamides (nylons) and polyesters to maintain mechanical properties and color stability.
• Synthetic Fibers: Incorporated into polypropylene and polyester fibers to prevent thermal and oxidative degradation during high-speed melt spinning and enhance fiber longevity.
• Elastomers and Rubber: Provides antioxidant protection for synthetic rubbers like EPDM and SBR, extending their service life in automotive and industrial applications.
• Adhesives and Sealants: Enhances the thermal aging resistance of hot-melt adhesives and polymer-based sealants.
• Masterbatch Production: A key active component in antioxidant and stabilizer concentrate masterbatches for simplified dosing in polymer compounding.
• Food Contact Materials: Suitable for use in polymer applications that require compliance with relevant food contact regulations (subject to specific grade and regional approvals).
• Recycled Polymers: Effective in stabilizing post-consumer and post-industrial recycled polyolefins, restoring and maintaining their performance properties.

Basic Information

Product Name	Thiobis[2-(1,1-Dimethylethyl)-5-Methyl-4,1-Phenylene] Bis[3-(Tetradecylthio)Propionate]
CAS No.	71982-66-6
Molecular Formula	C58H98O4S4
Molecular Weight	1011.8 g/mol
Synonyms	Bis[3-(tetradecylthio)propionic acid], 2,2'-thiobis[6-tert-butyl-4-methylphenyl] ester; Antioxidant 1035; Irganox 1035; Ethanox 1035; AO-1035; 2,2'-Thiobis(6-tert-butyl-4-methylphenyl) 3-(tetradecylthio)propionate; Phenolic thioester antioxidant; 2,2'-Thiobis[6-(1,1-dimethylethyl)-4-methylphenyl] ester of 3,3'-thiobispropanoic acid ditetradecyl ester
EINECS	Contact for details

Quality Control

Our production of Thiobis[2-(1,1-Dimethylethyl)-5-Methyl-4,1-Phenylene] Bis[3-(Tetradecylthio)Propionate] follows stringent quality management systems to ensure batch-to-batch consistency and high purity. All materials are tested against comprehensive specifications, including identity, assay, and impurity profiles. Certificates of Analysis (COA) documenting these results are provided with each shipment. We support our global customers by ensuring our products and quality documentation meet relevant industry standards.

Storage

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

Specification

Item	Specification
Appearance	White to off-white crystalline powder or flakes
Identification (IR)	Conforms to reference spectrum
Assay (HPLC)	≥ 98.0 %
Melting Point	63 - 68 °C
Loss on Drying	≤ 0.5 %
Ash Content	≤ 0.1 %
Heavy Metals (as Pb)	≤ 10 ppm

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