Description

Benzenepropanoic Acid, 3,5-Bis(1,1-Dimethylethyl)-4-Hydroxy-, 3-Hydroxy-2,2-Bis(Hydroxymethyl)Propyl Ester is a high-performance hindered phenolic antioxidant ester, valued for its excellent compatibility and low volatility in demanding polymer systems. Its primary function is to inhibit oxidative degradation, thereby extending the service life and maintaining the physical properties of sensitive materials. This compound is essential for formulators and manufacturers in the plastics, synthetic rubber, and specialty coatings industries who require long-term thermal stability.

Application

• Polymer Stabilization: Primary antioxidant for polyolefins (PP, PE), engineering plastics, and synthetic rubbers to prevent thermal-oxidative degradation during processing and end-use.
• Lubricant & Grease Additive: Enhances the oxidative stability of industrial lubricants, transmission fluids, and synthetic greases, reducing sludge formation and viscosity increase.
• Adhesive & Sealant Formulations: Protects polyurethane, silicone, and other polymer-based adhesives and sealants from embrittlement and loss of elasticity caused by heat and oxygen exposure.
• Thermoplastic Elastomers (TPEs): Provides critical stabilization for styrenic block copolymers (SBS, SIS) and olefinic TPEs used in automotive and consumer goods.
• Hot Melt Adhesives: Prevents discoloration and maintains adhesive performance during high-temperature application and throughout product lifecycle.
• Fiber & Film Production: Used in the stabilization of polypropylene fibers and BOPP films to ensure color stability and mechanical integrity.

Basic Information

Product Name	Benzenepropanoic Acid, 3,5-Bis(1,1-Dimethylethyl)-4-Hydroxy-, 3-Hydroxy-2,2-Bis(Hydroxymethyl)Propyl Ester
CAS No.	26347-98-8
Molecular Formula	C24H40O6
Molecular Weight	424.57 g/mol
Synonyms	Pentaerythritol Tetrakis(3-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate) (common name); Antioxidant 1010; Irganox 1010; AO-1010; 3,5-Di-tert-butyl-4-hydroxyphenylpropionic acid pentaerythritol ester; Tetrakis[methylene(3,5-di-tert-butyl-4-hydroxyhydrocinnamate)]methane; Pentaerythrityl tetrakis(3-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate)
EINECS	247-653-1

Quality Control

Our production of Antioxidant 1010 adheres to stringent quality management systems. Every batch undergoes comprehensive analytical testing, including HPLC for assay and purity, to ensure it meets exacting specifications for the polymer industry. A detailed Certificate of Analysis (COA) documenting identity, purity, and key physical parameters is provided with each shipment to guarantee traceability and compliance.

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) and easily oxidized; containers must be kept tightly sealed after opening to minimize exposure to atmospheric moisture and oxygen. For long-term storage, consider using an inert gas blanket.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to reference spectrum
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.