Description

4-Benzhydryl-2,6-Di-tert-Butylphenol is a high-performance sterically hindered phenolic antioxidant, recognized for its excellent thermal stability and low volatility. This compound is critical for protecting polymers, synthetic rubbers, and other organic materials from oxidative degradation, thereby extending their service life and maintaining performance under demanding conditions. It is primarily needed by manufacturers in the polymer, lubricant, and specialty chemical industries seeking robust stabilization solutions.

Application

• Primary antioxidant in polyolefins (e.g., polyethylene, polypropylene) to prevent thermal-oxidative degradation during processing and end-use.
• Stabilizer for synthetic rubbers (e.g., SBR, BR) and elastomers to enhance durability and prevent cracking.
• Additive in lubricating oils, greases, and hydraulic fluids to inhibit oxidation and sludge formation.
• Stabilizing agent for adhesives, sealants, and coatings to improve shelf-life and weatherability.
• Intermediate in the synthesis of more complex antioxidant molecules and specialty chemicals.
• Protective additive in fuel and hydrocarbon-based systems to prevent gum formation.

Basic Information

Product Name	4-Benzhydryl-2,6-Di-tert-Butylphenol
CAS No.	13145-54-5
Molecular Formula	C29H36O
Molecular Weight	400.60 g/mol
Synonyms	2,6-Di-tert-butyl-4-(diphenylmethyl)phenol; Phenol, 4-(diphenylmethyl)-2,6-bis(1,1-dimethylethyl)-; Benzhydryl-2,6-di-tert-butylphenol; Antioxidant 4B; AO 4B; 4-(Diphenylmethyl)-2,6-di-tert-butylphenol; Bis(1,1-dimethylethyl)-4-(diphenylmethyl)phenol
EINECS	236-099-1

Quality Control

Our 4-Benzhydryl-2,6-Di-tert-Butylphenol is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing to ensure it meets high-purity standards and consistent performance. A comprehensive Certificate of Analysis (COA) detailing purity, identity, and key physical parameters is provided with every shipment to guarantee traceability and compliance with your specifications.

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 and incompatible materials. Under these conditions, the product remains stable for extended periods.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0 %
Melting Point	155 - 160 °C
Loss on Drying	≤ 0.5 %
Heavy Metals (as Pb)	≤ 20 ppm

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.