Description

Acetic Acid, 3,5-Bis(1,1-Dimethylethyl)-4-Hydroxyphenylmethylthio-, C10-14-Isoalkyl Esters is a high-performance, sterically hindered phenolic antioxidant ester designed for superior stability in demanding environments. This compound is valued for its ability to inhibit oxidative degradation, thereby extending the service life and maintaining the properties of sensitive materials. It is a critical additive for formulators in the polymer, lubricant, and specialty chemical industries seeking to enhance product durability under thermal and oxidative stress.

Application

• Primary antioxidant in polyolefins (PP, PE) and other polymers to prevent chain scission and discoloration during processing and end-use.
• Stabilizer for industrial lubricants and greases, protecting against viscosity increase and sludge formation at high operating temperatures.
• Additive in adhesives, sealants, and elastomers to improve resistance to heat aging and environmental weathering.
• Key component in fuel and oil additives packages to enhance oxidative stability and prevent deposit formation.
• Used in the formulation of cosmetic and personal care products where antioxidant properties are required for shelf-life extension.
• Stabilizing agent for technical waxes and other hydrocarbon-based materials susceptible to oxidation.

Basic Information

Product Name	Acetic Acid, 3,5-Bis(1,1-Dimethylethyl)-4-Hydroxyphenylmethylthio-, C10-14-Isoalkyl Esters
CAS No.	118832-72-7
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	3,5-Di-tert-butyl-4-hydroxyphenylmethylthioacetic Acid C10-14 Isoalkyl Esters; Phenolic Antioxidant Ester; Thioalkylated hindered phenol; Antioxidant AO-XX (Trade name variant); 4-Hydroxy-3,5-di-tert-butylbenzylthioacetic Acid Isoalkyl Esters; Alkylthioacetate ester of BHT analog; (3,5-Bis(1,1-dimethylethyl)-4-hydroxyphenyl)methylthioacetic Acid, C10-14-Branched Alkyl Esters
EINECS	Contact for details

Quality Control

Our production of Acetic Acid, 3,5-Bis(1,1-Dimethylethyl)-4-Hydroxyphenylmethylthio-, C10-14-Isoalkyl Esters adheres to a rigorous quality management system. Every batch is analyzed to ensure it meets precise specifications for identity, purity, and performance. Certificates of Analysis (COA) documenting key parameters are available upon request, providing full traceability and compliance assurance for your quality 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 product is easily oxidized; prolonged exposure to air should be minimized. Keep away from strong oxidizing agents and incompatible materials.

Specification

Item	Specification
Appearance	Pale yellow to amber viscous liquid
Identification (IR)	Conforms to standard
Assay (HPLC)	≥ 95.0%
Color (Gardner)	≤ 5
Acid Value	≤ 2.0 mg KOH/g
Volatile Matter	≤ 1.0%

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