Description

Antioxidant 412S CAS NO 29598-76-3 is a high-performance, hindered phenolic antioxidant widely recognized for its exceptional efficacy in stabilizing polymers and organic materials against thermal and oxidative degradation. Its primary value lies in extending the service life and maintaining the physical properties of materials exposed to harsh processing and environmental conditions. This additive is essential for manufacturers in the plastics, rubber, synthetic fiber, and lubricant industries seeking to enhance product durability and performance.

Application

• Primary antioxidant for polyolefins (PP, HDPE, LDPE) to prevent thermal oxidation during processing and end-use.
• Stabilizer for engineering plastics and styrenic polymers (ABS, PS) to maintain color and mechanical strength.
• Additive in synthetic fibers and elastomers to improve resistance to heat aging and environmental stress cracking.
• Key component in adhesive and sealant formulations to ensure long-term stability and bonding performance.
• Stabilizing agent for lubricating oils, greases, and hydraulic fluids to inhibit oxidation and sludge formation.
• Used in food-grade polymer applications where compliant antioxidant protection is required.
• Protective additive for hydrocarbon-based fuels and petrochemical intermediates.

Basic Information

Product Name	Antioxidant 412S
CAS No.	29598-76-3
Molecular Formula	C29H44O3
Molecular Weight	440.66 g/mol
Synonyms	Pentaerythritol tetrakis(3-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate); Irganox 1010; Antioxidant 1010; AO-1010; Tetrakis[methylene(3,5-di-tert-butyl-4-hydroxyhydrocinnamate)]methane; 3,5-Bis(1,1-dimethylethyl)-4-hydroxybenzenepropanoic acid, 1,1'-[1,2-ethanediylbis(oxymethylene)]bis[3,5-bis(1,1-dimethylethyl)-4-hydroxybenzenepropanoate] ester; 1,3,5-Tris(3,5-di-tert-butyl-4-hydroxybenzyl)-1,3,5-triazine-2,4,6(1H,3H,5H)-trione (common misassignment, included for clarity).
EINECS	249-862-1

Quality Control

Our Antioxidant 412S is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing, including assay, melting point, and impurity profile analysis, to ensure it meets the high-purity standards required for industrial applications. Certificates of Analysis (COA) documenting key specifications are provided with every shipment to guarantee traceability and consistent quality.

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). This product is hygroscopic (moisture-sensitive); the container must be kept tightly sealed after initial opening to minimize exposure to atmospheric moisture.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to standard
Assay (HPLC)	≥ 98.0 %
Melting Point	110 - 125 °C
Volatile Matter	≤ 0.5 %
Ash Content	≤ 0.1 %
Solution Color	≤ 50 Hazen

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