Description

1,3,5-Tri-tert-Butyl-3-(3,5-Di-tert-Butyl-4-Hydroxybenzyl)Norcaran-4-En-2-One is a high-performance hindered phenolic antioxidant, a critical additive for protecting polymers and other materials from oxidative degradation. Its complex molecular structure provides exceptional thermal stability and low volatility, making it a superior choice for demanding applications. This compound is essential for manufacturers in the plastics, rubber, and specialty chemical industries seeking to extend product lifespan and maintain material integrity under harsh conditions.

Application

• Polymer Stabilization: Primary antioxidant for polyolefins (PP, PE), engineering plastics, and synthetic rubbers to prevent chain scission and cross-linking during processing and end-use.
• Lubricant & Fuel Additive: Used in high-temperature engine oils, industrial lubricants, and fuels to inhibit oxidation, reduce sludge formation, and extend service intervals.
• Adhesive & Sealant Formulations: Enhances the thermal-oxidative stability of hot-melt adhesives, polyurethane systems, and silicone sealants.
• Elastomer Protection: Critical for stabilizing synthetic rubbers like SBR, NBR, and EPDM against heat aging, preserving elasticity and mechanical properties.
• Masterbatch & Compound Production: A key ingredient in antioxidant and stabilizer concentrates for efficient dispersion in polymer compounding.
• Specialty Chemical Intermediate: Serves as a building block for synthesizing more complex antioxidant molecules and light stabilizers.

Basic Information

Product Name	1,3,5-Tri-tert-Butyl-3-(3,5-Di-tert-Butyl-4-Hydroxybenzyl)Norcaran-4-En-2-One
CAS No.	19719-71-2
Molecular Formula	C₃₈H₅₈O₂
Molecular Weight	546.87 g/mol
Synonyms	Norcaran-4-en-2-one, 1,3,5-tris(1,1-dimethylethyl)-3-[[3,5-bis(1,1-dimethylethyl)-4-hydroxyphenyl]methyl]-; 3-(3,5-Di-tert-butyl-4-hydroxybenzyl)-1,3,5-tri-tert-butylnorcaran-4-en-2-one; Antioxidant 1790; Irganox 1790; AO-1790; Tris(tert-butyl)phenolic antioxidant; High molecular weight hindered phenol
EINECS	Contact for details

Quality Control

Our production of 1,3,5-Tri-tert-Butyl-3-(3,5-Di-tert-Butyl-4-Hydroxybenzyl)Norcaran-4-En-2-One adheres to stringent quality management systems. Every batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation, to ensure it meets exacting specifications for use in sensitive polymer and lubricant applications. A Certificate of Analysis (COA) detailing all test results is provided with each shipment, guaranteeing traceability and consistent performance for our global B2B clients.

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 light-sensitive and easily oxidized; for long-term storage, maintaining an inert atmosphere (e.g., under nitrogen) is recommended to preserve efficacy. 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	155 - 165 °C
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%

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