Description

Antioxidant 1330 is a high-performance, sterically hindered phenolic antioxidant widely recognized for its exceptional efficacy in preventing oxidative degradation. Its primary value lies in providing superior long-term thermal stability to polymers and organic materials, thereby extending their service life and maintaining critical physical properties. This makes it an essential additive for manufacturers in the plastics, rubber, and synthetic fiber industries who require reliable protection against heat-induced aging and discoloration. The compound is identified by the CAS registry number 1709-70-2.

Application

• Polymer Stabilization: Primary antioxidant for polyolefins (PP, HDPE, LDPE), polystyrene, and engineering plastics to prevent thermal oxidation during processing and end-use.
• Rubber Industry: Used in synthetic rubbers like SBR, BR, and NBR to protect against heat aging and maintain elasticity and tensile strength.
• Adhesives & Sealants: Enhances the shelf-life and performance stability of hot-melt and pressure-sensitive adhesives by inhibiting resin degradation.
• Synthetic Fibers: Incorporated into polypropylene and polyester fibers to prevent strength loss and yellowing caused by heat and light exposure.
• Hydrocarbon Fuels & Lubricants: Acts as an antioxidant in greases, transformer oils, and other industrial fluids to inhibit gum formation and acid generation.
• Food Contact Materials: For compliant grades, used in polymer applications intended for food packaging where regulatory approval is met.

Basic Information

Product Name	Antioxidant 1330
CAS No.	1709-70-2
Molecular Formula	C40H58O3
Molecular Weight	586.9 g/mol
Synonyms	1,1,3-Tris(2-methyl-4-hydroxy-5-tert-butylphenyl)butane; Phenol, 2,4-bis(1,1-dimethylethyl)-, reaction products with 2,4,4-trimethylpentene; Antioxidant 330; AO 1330; Irganox 1330; Topanol CA; Ethanox 330; CAS 1709-70-2
EINECS	216-971-0

Quality Control

Our Antioxidant 1330 is manufactured under a stringent quality management system. Every batch undergoes comprehensive analytical testing, including assay, melting point, and impurity profile analysis, to ensure it meets precise specifications. A Certificate of Analysis (COA) detailing all test results is provided with each shipment. We can supply grades compliant with relevant industry standards for food contact and other regulated applications upon request.

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 strong oxidizing agents and heat sources. Under these conditions, the product has excellent shelf stability.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to standard
Assay (HPLC)	≥ 98.0 %
Melting Point	240 - 245 °C
Loss on Drying	≤ 0.5 %
Ash Content	≤ 0.1 %
Heavy Metals (as Pb)	≤ 10 ppm

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