Description

2-Methylpropionic Acid 2-tert-Butyl-6-[(3-tert-Butyl-2-Hydroxy-5-Methylphenyl)Methyl]-4-Methylphenyl Ester is a high-performance hindered phenol antioxidant, valued for its exceptional ability to inhibit oxidative degradation in polymers and other sensitive materials. This compound is essential for manufacturers seeking to enhance the longevity, thermal stability, and color retention of their products under demanding conditions. It is primarily utilized in the plastics, rubber, and specialty chemical industries where premium additive performance is required.

Application

• Polymer Stabilization: Primary antioxidant for polyolefins (PP, PE), engineering plastics, and synthetic rubbers to prevent thermal and oxidative degradation during processing and end-use.
• Lubricant & Fuel Additive: Used in formulations for industrial lubricants, greases, and fuels to extend service life by inhibiting oxidation and sludge formation.
• Adhesive & Sealant Formulations: Enhances the shelf-life and performance stability of hot-melt adhesives, pressure-sensitive adhesives, and elastomeric sealants.
• Coating & Resin Protection: Protects acrylic, alkyd, and polyurethane coatings, as well as unsaturated polyester resins, from yellowing and embrittlement caused by UV and heat exposure.
• Elastomer & Synthetic Rubber: Critical for stabilizing SBR, NBR, EPDM, and other elastomers against aging, maintaining elasticity and mechanical properties.
• Synergistic Blends: Often used in combination with secondary antioxidants (e.g., phosphites, thioesters) and UV stabilizers for comprehensive stabilization packages.

Basic Information

Item	Details
Product Name	2-Methylpropionic Acid 2-tert-Butyl-6-[(3-tert-Butyl-2-Hydroxy-5-Methylphenyl)Methyl]-4-Methylphenyl Ester
CAS No.	71840-27-2
Molecular Formula	C26H36O3
Molecular Weight	396.57 g/mol
Synonyms	2,2'-Methylenebis(6-tert-butyl-4-methylphenyl) 2-methylpropanoate; Phenol, 2,2'-methylenebis[6-tert-butyl-4-methyl-, 2-methylpropanoate; Irganox 1425 (Trade Name); Antioxidant 1425; Bis(2-tert-butyl-6-methyl-4-hydroxyphenyl)methane 2-methylpropanoate; 2,2'-Methylenebis(4-methyl-6-tert-butylphenyl) isobutyrate; Lowinox 22M46 (Trade Name); AO-1425
EINECS	Contact for details

Quality Control

Our production of 2-Methylpropionic Acid 2-tert-Butyl-6-[(3-tert-Butyl-2-Hydroxy-5-Methylphenyl)Methyl]-4-Methylphenyl Ester adheres to stringent quality management systems. Every batch undergoes rigorous analytical testing to ensure high purity, consistent performance, and compliance with relevant industry specifications. Certificates of Analysis (COA) detailing purity, assay, and impurity profiles are available upon request to support your quality assurance protocols.

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. The product is light-sensitive and should be stored away from direct light exposure.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to standard
Assay (HPLC)	≥ 98.0 %
Melting Point	100 - 105 °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.