Speciality Chemicals

Antioxidant GS

  • CAS No.123968-25-2
  • GradeIndustrial / Pharmaceutical
  • Availability● In Stock

Antioxidant GS (CAS 123968-25-2) is a high-performance multifunctional stabilizer designed for elastomers and plastics. It offers superior radical scavenging under anaerobic conditions.

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Product Technical Details

Product Overview

Antioxidant GS represents a significant advancement in the field of polymer stabilization technology. Chemically identified as 2-(1-(2-Hydroxy-3,5-di-tert-pentylphenyl)ethyl)-4,6-di-tert-pentylphenyl acrylate, this specialized additive is engineered to provide robust protection against oxidative degradation. Unlike conventional phenolic antioxidants, this compound exhibits exceptional efficacy in scavenging alkyl radicals, making it indispensable for demanding industrial applications where material integrity is paramount.

Our manufacturing process ensures consistent high purity, typically exceeding 98 percent as verified by gas chromatography. The product is supplied as a free-flowing white powder, facilitating easy handling and integration into various masterbatch formulations. With a molecular weight of approximately 548.84 g/mol, it offers an optimal balance between volatility and compatibility within polymer matrices.

Key Performance Features

The unique chemical structure of Antioxidant GS confers several distinct advantages over standard stabilizers. It is particularly active under anaerobic conditions, where traditional antioxidants often fail to perform effectively. This characteristic makes it the preferred choice for processing environments characterized by high temperatures and high shear forces.

  • Superior radical scavenging capability for carbon-centered radicals.
  • Excellent thermal stability during aggressive processing conditions.
  • Non-discoloring properties ensure aesthetic quality in final products.
  • Low volatility reduces loss during high-temperature extrusion.
  • Prevents gel formation in butadiene-based polymers.

Industrial Applications

This multifunctional antioxidant is extensively utilized in the stabilization of adhesives, elastomers, and a wide range of plastics. It is particularly useful for polybutadiene and its copolymers, where it effectively prevents gel formation during processing. Additionally, it demonstrates high compatibility with polyolefins and polyamides, extending the service life of components exposed to thermal stress.

Regulatory compliance is a critical aspect of our supply chain. Antioxidant GS has received FDA clearance for use in specific food-contact applications, including polypropylene, styrenic block copolymers, polystyrene, and rubber-modified polystyrene. This certification opens doors for manufacturers in the packaging and consumer goods sectors who require validated safety profiles.

Technical Specifications

Test ParameterUnitSpecification
Appearance-White Powder
Melting Point117.0-120.0
Purity (GC)%98.0 Min
Loss on Drying%0.50 Max
Molecular Formula-C37H56O3

Storage and Handling

To maintain optimal quality, containers should be kept tightly closed in a cool, dry environment. Proper storage prevents moisture absorption and ensures the product remains free-flowing. Our company stands as a professional supplier of functional material additives, offering a complete industry chain for rubber, plastic, coating, and textile applications. We are committed to technological innovation and reliable global supply, ensuring that your production lines remain uninterrupted with premium-grade chemical solutions.