Description

Iso(C10-C14)Alkyl (3,5-Di-tert-Butyl-4-Hydroxyphenyl)Methylthioacetate is a high-performance phenolic antioxidant belonging to the thioester class, designed to provide exceptional long-term thermal stability to polymers and synthetic materials. Its primary value lies in its ability to effectively inhibit oxidative degradation, thereby extending the service life and maintaining the physical properties of finished products under demanding conditions. This antioxidant is essential for manufacturers in the plastics, rubber, and lubricant industries seeking to enhance the durability and reliability of their formulations. The compound is identified by CAS number 118232-72-7.

Application

• Primary antioxidant for polyolefins such as polypropylene (PP) and polyethylene (PE) to prevent thermal-oxidative degradation during processing and end-use.
• Stabilizer for engineering plastics and styrenic polymers to maintain color, mechanical strength, and dimensional stability.
• Additive in synthetic rubbers and elastomers to protect against heat aging and extend product lifespan.
• Key component in lubricant and grease formulations to inhibit oil oxidation, reduce sludge formation, and prevent viscosity increase.
• Stabilizing agent for adhesives, sealants, and coatings to ensure performance consistency over time.
• Used in fiber and film production to protect against UV and thermal-induced brittleness.

Basic Information

Product Name	Iso(C10-C14)Alkyl (3,5-Di-tert-Butyl-4-Hydroxyphenyl)Methylthioacetate
CAS No.	118232-72-7
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	Isoalkyl (C10-C14) (3,5-di-tert-butyl-4-hydroxyphenyl)methylthioacetate; Thioester Antioxidant; Alkylated Phenolic Thioester; Antioxidant 118232-72-7; Phenolic Thioether; (3,5-Di-tert-butyl-4-hydroxyphenyl)methylthioacetic Acid Iso(C10-C14) Alkyl Ester; Irganox PS 802 (related trade series); Low-volatility phenolic antioxidant
EINECS	Contact for details

Quality Control

Our production of Iso(C10-C14)Alkyl (3,5-Di-tert-Butyl-4-Hydroxyphenyl)Methylthioacetate adheres to stringent quality management systems to ensure batch-to-batch consistency and high purity. Every lot is subjected to rigorous analytical testing, including assay, identification, and impurity profiling. Certificates of Analysis (COA) documenting full specifications are available for all shipments. Our quality commitment supports compliance with global regulatory frameworks, including REACH.

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, open flames, and incompatible materials. Due to its light-sensitive nature, the original container should be kept closed when not in use to maintain product integrity.

Specification

Item	Specification
Appearance	White to off-white powder or flakes
Identification (IR)	Conforms to standard
Assay (HPLC)	≥ 98.0 %
Melting Point	Contact for details
Loss on Drying	≤ 0.5 %
Heavy Metals	≤ 10 ppm

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