Description

N, n-Bis(3,5-Di-tert-Butyl-2-Hydroxyphenyl)-1,2-Diaminoethane is a high-performance phenolic antioxidant and metal deactivator belonging to the class of hindered amine light stabilizer (HALS) synergists. This compound is critical for preventing oxidative degradation and metal-catalyzed decomposition in polymers and hydrocarbon-based systems, thereby significantly extending product service life and maintaining material integrity. It is essential for manufacturers in the plastics, rubber, lubricant, and fuel industries who require robust stabilization solutions under demanding thermal and environmental conditions.

Application

• Primary antioxidant and stabilizer in polyolefins (e.g., polyethylene, polypropylene) to prevent thermal-oxidative degradation during processing and end-use.
• Key additive in synthetic lubricants and industrial oils to inhibit oxidation and sludge formation, enhancing operational stability and longevity.
• Metal deactivator in fuels and hydrocarbon fluids, chelating trace metals that catalyze oxidation and gum formation.
• Stabilizer component for engineering plastics and elastomers, such as EPDM rubber, to protect against heat and environmental aging.
• Used in adhesive and sealant formulations to prevent premature curing and loss of adhesive properties due to oxidation.
• Synergistic component in polymer stabilization packages alongside primary antioxidants and UV stabilizers for enhanced performance.
• Additive for wire and cable insulation materials to ensure long-term thermal stability and electrical performance.

Basic Information

Product Name	N, n-Bis(3,5-Di-tert-Butyl-2-Hydroxyphenyl)-1,2-Diaminoethane
CAS No.	96506-59-1
Molecular Formula	C30H48N2O2
Molecular Weight	468.72 g/mol
Synonyms	N,N'-Bis(3,5-di-tert-butyl-2-hydroxyphenyl)ethylenediamine; Ethylenediamine, N,N'-bis(3,5-di-tert-butyl-2-hydroxyphenyl)-; Antioxidant 703; Irganox 703; Ethanone, 1,1'-(1,2-ethanediylbis((3,5-bis(1,1-dimethylethyl)-4-hydroxyphenyl)imino))bis-; Bis(3,5-di-tert-butyl-2-hydroxyphenyl)ethylenediamine; Phenolic amine antioxidant; CAS 96506-59-1
EINECS	Contact for details

Quality Control

Our production of N, n-Bis(3,5-Di-tert-Butyl-2-Hydroxyphenyl)-1,2-Diaminoethane adheres to stringent quality management protocols to ensure batch-to-batch consistency and high purity. All materials are characterized and tested against established internal specifications using advanced analytical techniques including HPLC, GC, and FTIR. A comprehensive Certificate of Analysis (COA) detailing identity, purity, and impurity profiles is provided with each shipment to support your quality assurance and regulatory compliance 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). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed after opening to minimize exposure to atmospheric moisture. 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 %
Heavy Metals (as Pb)	≤ 10 ppm
Residue on Ignition	≤ 0.1 %

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