Description

2-Ethylhexyl [[[3,5-Bis(1,1-Dimethylethyl)-4-Hydroxyphenyl]Methyl]Thio]Acetate is a high-performance phenolic antioxidant and thioether synergist, widely recognized for its exceptional effectiveness in stabilizing polymers and organic materials against thermal and oxidative degradation. Its molecular structure provides superior compatibility and low volatility, making it a critical additive for extending the service life and maintaining the physical properties of sensitive formulations. This compound is essential for manufacturers in the polymer, lubricant, and specialty chemical industries seeking reliable, long-term stabilization solutions.

Application

• Polymer Stabilization: Primary antioxidant for polyolefins (PP, PE), engineering plastics, and synthetic rubbers to prevent chain scission and discoloration during processing and end-use.
• Lubricant & Grease Additive: Used in engine oils, industrial lubricants, and greases to inhibit oxidation, reduce sludge formation, and extend oil drain intervals.
• Adhesive & Sealant Formulations: Enhances the thermal-oxidative stability of hot-melt adhesives, sealants, and caulks, preventing gelation and maintaining viscosity.
• Fuel & Petrochemical Additive: Acts as a stabilizer in fuels, hydraulic fluids, and transformer oils to prevent gum formation and acid generation.
• Elastomer Protection: Provides antioxidant protection for SBR, NBR, and other synthetic elastomers in automotive and industrial components.
• Synergistic Blends: Often used in combination with primary phosphite antioxidants and UV stabilizers to create highly effective, multi-functional stabilization packages.

Basic Information

Product Name	2-Ethylhexyl [[[3,5-Bis(1,1-Dimethylethyl)-4-Hydroxyphenyl]Methyl]Thio]Acetate
CAS No.	80387-97-9
Molecular Formula	C27H46O3S
Molecular Weight	450.72 g/mol
Synonyms	2-Ethylhexyl 3-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate sulfide; Octyl 3-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate sulfide; Antioxidant 1035; Irganox 1035; Ethanone, 2-[3,5-bis(1,1-dimethylethyl)-4-hydroxyphenyl]thio]-1-(2-ethylhexyl ester); Thiodiethylene bis(3,5-di-tert-butyl-4-hydroxyhydrocinnamate) (related); AO-1035
EINECS	Contact for details

Quality Control

Our production of 2-Ethylhexyl [[[3,5-Bis(1,1-Dimethylethyl)-4-Hydroxyphenyl]Methyl]Thio]Acetate adheres to stringent quality management systems to ensure batch-to-batch consistency and high purity. The material is manufactured and tested in facilities that follow cGMP guidelines where applicable. Our products undergo rigorous quality testing to ensure compliance with industry standards. Certificates of Analysis (COA) detailing purity, identity, and key physical parameters are available upon request.

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 material is easily oxidized; for long-term storage, maintaining an inert atmosphere (nitrogen blanket) is recommended to preserve efficacy. Keep away from strong oxidizing agents and heat sources.

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 - 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.