Description

Irganox 1141 is a high-performance, multifunctional phenolic antioxidant widely recognized for its superior stabilizing effects in demanding polymer applications. Its primary value lies in providing exceptional long-term thermal stability and preventing oxidative degradation, thereby significantly extending the service life of finished products. This additive is essential for manufacturers in the plastics, synthetic fiber, and elastomer industries who require reliable protection for their materials during high-temperature processing and end-use.

Application

• Primary antioxidant for polypropylene (PP) and polyethylene (PE) resins, including film, fiber, and molded articles.
• Thermal stabilizer for engineering plastics such as polyamides (PA) and polyesters (PBT, PET).
• Protection of synthetic rubbers and elastomers (e.g., EPDM, SBR) against heat aging.
• Stabilization of adhesives, sealants, and polymer dispersions.
• Used in fiber production to maintain strength and color during high-speed spinning and drawing processes.
• Additive for lubricants and greases to enhance oxidative stability.

Basic Information

Product Name	Irganox 1141
CAS No.	134701-20-5
Molecular Formula	C34H52O3
Molecular Weight	508.78 g/mol
Synonyms	1,3,5-Tris(4-tert-butyl-3-hydroxy-2,6-dimethylbenzyl)-1,3,5-triazine-2,4,6(1H,3H,5H)-trione; Tris(3,5-di-tert-butyl-4-hydroxybenzyl) isocyanurate; Antioxidant 1141; Irganox 1141; Cyanox 1790; Lowinox 1790; AO-18; 1,3,5-Tris[[3,5-bis(1,1-dimethylethyl)-4-hydroxyphenyl]methyl]-1,3,5-triazine-2,4,6(1H,3H,5H)-trione
EINECS	Contact for details

Quality Control

Our Irganox 1141 is manufactured under a strict quality management system to ensure batch-to-batch consistency and high purity. The product meets relevant industry standards for polymer additives. Comprehensive testing, including assay and impurity profile analysis, is performed. Certificates of Analysis (COA) documenting all critical parameters are available upon request to support your quality assurance protocols.

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. 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	220 - 225 °C
Loss on Drying	≤ 0.5 %
Ash Content	≤ 0.1 %

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