Description

Phenol, 2,6-Bis[[3-(1,1-Dimethylethyl) -2-Hydroxy-5-Methylphenyl]Octahydro-4,7-Methano -1H-Indenyl]-4-Methyl- is a high-performance, sterically hindered phenolic antioxidant. This compound is engineered to provide exceptional oxidative stability to polymers and other sensitive materials by effectively scavenging free radicals. It is a critical additive for manufacturers in the plastics, rubber, and specialty chemical industries who require long-term thermal and color stability for their products under demanding conditions.

Application

• Primary antioxidant for polyolefins (PP, PE) to prevent thermal degradation during processing and in-service.
• Stabilizer for engineering plastics and thermoplastic elastomers to extend product lifespan and maintain mechanical properties.
• Additive in synthetic rubbers and adhesives to inhibit oxidative cross-linking and preserve elasticity.
• Protective agent in lubricants, greases, and hydraulic fluids to enhance oxidative resistance.
• Stabilizing component in specialty coatings and resins to prevent yellowing and embrittlement.
• Used in the formulation of masterbatches and polymer concentrates for efficient dispersion.

Basic Information

Product Name	Phenol, 2,6-Bis[[3-(1,1-Dimethylethyl) -2-Hydroxy-5-Methylphenyl]Octahydro-4,7-Methano -1H-Indenyl]-4-Methyl-
CAS No.	31851-03-3
Molecular Formula	C54H72O2
Molecular Weight	753.15 g/mol
Synonyms	2,6-Bis[[3-(tert-Butyl)-2-hydroxy-5-methylphenyl]octahydro-4,7-methano-1H-inden-1-yl]-4-methylphenol; 2,6-Bis[3-tert-butyl-2-hydroxy-5-methylphenyloctahydro-4,7-methano-1H-inden-1-yl]-4-methylphenol; Phenolic antioxidant 31851-03-3; Bis(3-tert-butyl-2-hydroxy-5-methylphenyl)octahydro-4,7-methanoindene; High molecular weight hindered phenol; Antioxidant AO-80 (related commercial designation); Polymer stabilizer 31851-03-3
EINECS	Contact for details

Quality Control

Our production of this hindered phenol antioxidant adheres to rigorous quality control protocols to ensure batch-to-batch consistency and high performance. Every lot is tested against stringent internal specifications for purity, melting point, and functional efficacy. A comprehensive Certificate of Analysis (COA) detailing assay, identity, and impurity profiles is provided with each shipment to support your quality assurance and regulatory needs.

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. The product is light-sensitive (store away from light).

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to standard
Assay (HPLC)	≥ 98.0%
Melting Point	220 - 225 °C
Loss on Drying	≤ 0.5%
Heavy Metals	≤ 10 ppm

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