Description

2,2'-Methylenebis[4-sec-Butyl-6-tert-Butylphenol] is a high-performance sterically hindered phenolic antioxidant. This compound is critical for preventing oxidative degradation and extending the service life of polymers and hydrocarbon-based materials. It is an essential additive for manufacturers in the plastics, rubber, and lubricant industries who require reliable thermal and oxidative stability for their products. The compound is supplied under CAS No. 72672-54-9.

Application

• Primary antioxidant for polyolefins (PP, PE) to prevent thermal oxidation during processing and long-term use.
• Stabilizer for synthetic rubbers (SBR, BR, NBR) and elastomers to maintain elasticity and prevent cracking.
• Additive in lubricating oils, greases, and hydraulic fluids to inhibit oxidation and sludge formation.
• Stabilizing agent for adhesives, sealants, and hydrocarbon-based resins to ensure product shelf life and performance.
• Protective additive in waxes, fuels, and other petroleum-derived products.
• Used in the formulation of masterbatches and polymer concentrates for consistent antioxidant dispersion.

Basic Information

Product Name	2,2'-Methylenebis[4-sec-Butyl-6-tert-Butylphenol]
CAS No.	72672-54-9
Molecular Formula	C₃₁H₄₈O₂
Molecular Weight	452.72 g/mol
Synonyms	2,2'-Methylenebis(4-sec-butyl-6-tert-butylphenol); Antioxidant 702; Phenol, 2,2'-methylenebis[4-(1-methylpropyl)-6-(1,1-dimethylethyl)-]; Bis(4-sec-butyl-6-tert-butyl-2-hydroxyphenyl)methane; 4,4'-Methylenebis(2-sec-butyl-6-tert-butylphenol); AO-702; Lowinox® 22M46; Naugard® 200
EINECS	Contact for details

Quality Control

Our production of 2,2'-Methylenebis[4-sec-Butyl-6-tert-Butylphenol] adheres to stringent quality management protocols. Every batch undergoes rigorous analytical testing to ensure it meets precise specifications for purity, melting point, and color. Certificates of Analysis (COA) are provided to guarantee traceability and compliance with your technical requirements.

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 strong oxidizing agents and heat sources.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms
Assay (HPLC)	≥ 98.0 %
Melting Point	125 - 130 °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.