Description

2,2'-Butylidenebis[4,6-Xylenol] is a high-purity phenolic antioxidant widely used in polymer stabilization. This compound is valued for its effectiveness in preventing oxidative degradation and extending the service life of sensitive materials. It is primarily sought by manufacturers in the plastics, rubber, and specialty chemical industries for formulating high-performance stabilizer systems.

Application

• Primary antioxidant in polyolefins (e.g., polyethylene, polypropylene) to inhibit thermal-oxidative degradation during processing and end-use.
• Stabilizer component for synthetic rubbers and elastomers to prevent chain scission and maintain mechanical properties.
• Additive in lubricants, greases, and hydraulic fluids to enhance oxidative stability and prevent sludge formation.
• Key intermediate in the synthesis of more complex polymer additives and specialty chemicals.
• Stabilizing agent for adhesives, sealants, and coatings to improve shelf-life and durability.
• Used in technical applications where non-staining, low-color contribution antioxidants are required.

Basic Information

Product Name	2,2'-Butylidenebis[4,6-Xylenol]
CAS No.	3772-23-4
Molecular Formula	C20H26O2
Molecular Weight	298.42 g/mol
Synonyms	2,2'-Methylenebis(4,6-dimethylphenol); 4,4'-Butylidenebis(2,6-dimethylphenol); Antioxidant 2246; AO 2246; Bis(4-hydroxy-3,5-dimethylphenyl)methane; 2,2'-Methylenebis(4,6-xylenol); Phenol, 2,2'-methylenebis(4,6-dimethyl-); Lowilite 22
EINECS	223-267-2

Quality Control

Our 2,2'-Butylidenebis[4,6-Xylenol] is manufactured under a strict quality management system. Every batch undergoes comprehensive analytical testing to ensure it meets the high standards required for industrial antioxidant applications. A Certificate of Analysis (COA) detailing purity, identity, and key physical parameters is provided with each shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). This material is easily oxidized; prolonged exposure to air should be minimized. Keep away from strong oxidizing agents.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to reference spectrum
Assay (HPLC)	≥ 98.0 %
Melting Point	120 - 125 °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.