Description

Benzenepropanoic Acid, 3,5-Bis(1,1-Dimethylethyl)-4-Hydroxy-, 2-Ethylhexyl Ester is a high-performance phenolic antioxidant ester, valued for its excellent compatibility and low volatility in demanding polymer systems. This compound is specifically engineered to inhibit oxidative degradation, thereby extending the service life and maintaining the physical properties of sensitive materials. It is a critical additive for manufacturers in the plastics, rubber, and specialty lubricant industries seeking reliable thermal stabilization solutions.

Application

• Primary antioxidant in polyolefins (e.g., PP, PE) for films, fibers, and molded articles.
• Stabilizer for engineering plastics and styrenic polymers to prevent yellowing and embrittlement.
• Additive in synthetic lubricants and greases to enhance oxidative stability at high operating temperatures.
• Protective agent in adhesives, sealants, and elastomers (e.g., SBR, EPDM) to improve durability.
• Used in food-contact polymer applications where compliant, non-migratory stabilization is required (subject to specific regulatory approval).
• Stabilizing component in hot-melt adhesives and coating formulations.

Basic Information

Product Name	Benzenepropanoic Acid, 3,5-Bis(1,1-Dimethylethyl)-4-Hydroxy-, 2-Ethylhexyl Ester
CAS No.	144429-84-5
Molecular Formula	C27H48O3
Molecular Weight	420.67 g/mol
Synonyms	Octadecyl 3-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate; Irganox 1076; 2-Ethylhexyl 3-(3,5-di-tert-butyl-4-hydroxyphenyl)propanoate; 3,5-Di-tert-butyl-4-hydroxyhydrocinnamic acid 2-ethylhexyl ester; Antioxidant 1076; Benzenepropanoic acid, 3,5-bis(1,1-dimethylethyl)-4-hydroxy-, 2-ethylhexyl ester; Phenol, 2,6-di-tert-butyl-4-(3-(2-ethylhexyloxy)-3-oxopropyl)-
EINECS	Contact for details

Quality Control

Our production of Benzenepropanoic Acid, 3,5-Bis(1,1-Dimethylethyl)-4-Hydroxy-, 2-Ethylhexyl Ester adheres to stringent quality management systems to ensure batch-to-batch consistency and high purity. Certificates of Analysis (COA) are provided with each shipment, detailing key parameters such as assay, melting point, and specific impurity profiles. We support compliance with relevant global standards for polymer additives.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). Keep away from heat sources and incompatible materials. Under these conditions, the product remains stable for extended periods.

Specification

Item	Specification
Appearance	White to off-white crystalline powder or flakes
Identification (IR)	Conforms to standard
Assay (HPLC)	≥ 98.0 %
Melting Point	49 - 53 °C
Loss on Drying	≤ 0.5 %
Ash Content	≤ 0.1 %
Transmittance (425 nm)	≥ 95.0 %
Transmittance (500 nm)	≥ 97.0 %

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