Description

2,2'-Butylidenebis(6-tert-Butyl-p-Cresol) is a high-performance phenolic antioxidant widely recognized for its effectiveness in stabilizing polymers and organic materials against thermal and oxidative degradation. Its primary value lies in its ability to extend the service life and maintain the physical properties of sensitive materials under demanding conditions. This compound is essential for manufacturers in the rubber, plastics, lubricant, and adhesive industries who require reliable protection for their products.

Application

• Polymer Stabilization: A primary antioxidant for polyolefins (PP, PE), styrenics, and engineering plastics to prevent chain scission and discoloration during processing and end-use.
• Rubber Industry: Used in the production of synthetic rubbers (SBR, BR, NBR) and tires to protect against heat aging and flex-cracking.
• Lubricants and Greases: Functions as an antioxidant additive in industrial and automotive lubricants to inhibit sludge formation and viscosity increase.
• Adhesives and Sealants: Enhances the shelf-life and thermal stability of hot-melt, pressure-sensitive, and structural adhesives.
• Fuel and Oil Additives: Acts as a stabilizer in gasoline and diesel to prevent gum formation and oxidation.
• Elastomers and Latex: Protects natural and synthetic latex products from degradation during storage and processing.

Basic Information

Product Name	2,2'-Butylidenebis(6-tert-Butyl-p-Cresol)
CAS No.	4081-14-5
Molecular Formula	C₂₆H₃₈O₂
Molecular Weight	382.58 g/mol
Synonyms	2,2'-Methylenebis(6-tert-butyl-4-methylphenol); Antioxidant 2246; AO 2246; Butylidenebis(6-tert-butyl-m-cresol); 4,4'-Butylidenebis(6-tert-butyl-3-methylphenol); Santowhite Powder; Vulkanox BKF; Lowinox 22M46; Nonox WSP
EINECS	223-796-8

Quality Control

Our production of 2,2'-Butylidenebis(6-tert-Butyl-p-Cresol) adheres to stringent quality management protocols. Every batch undergoes comprehensive analytical testing, including assay, melting point determination, and impurity profiling, to ensure it meets precise customer and industry specifications. Certificates of Analysis (COA) documenting purity, physical properties, and performance tests are available for each shipment to guarantee traceability and consistency.

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 hygroscopic (moisture-sensitive); keep the original container tightly sealed to minimize exposure to atmospheric humidity.

Specification

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