Description

3-(3,5-Di-tert-Butyl-4-Hydroxyphenyl)Propionic Acid is a sterically hindered phenolic antioxidant widely used as a key intermediate in the synthesis of high-performance polymer additives. This compound is valued for its ability to impart excellent thermal and oxidative stability to a variety of materials, preventing degradation and extending product lifespan. It is an essential raw material for manufacturers in the plastics, rubber, and synthetic lubricant industries seeking to enhance the durability of their formulations.

Application

• Primary Antioxidant Intermediate: Serves as a crucial building block for synthesizing high-molecular-weight phenolic antioxidants like Irganox 1010 and other hindered phenol derivatives.
• Polymer Stabilization: Used in the production of additives for polyolefins (PP, PE), engineering plastics, and synthetic rubbers to prevent thermal and oxidative degradation during processing and end-use.
• Lubricant & Fuel Additives: Incorporated into formulations for synthetic lubricants, greases, and fuels to inhibit oxidation and sludge formation, improving performance and longevity.
• Adhesive & Sealant Formulations: Enhances the stability of hot-melt adhesives and other polymer-based sealants against heat and environmental aging.
• Coating Resins: Acts as a stabilizer in alkyd resins and other coating systems to prevent yellowing and maintain film integrity.

Basic Information

Product Name	3-(3,5-Di-tert-Butyl-4-Hydroxyphenyl)Propionic Acid
CAS No.	20170-32-5
Molecular Formula	C17H26O3
Molecular Weight	278.39 g/mol
Synonyms	3,5-Di-tert-butyl-4-hydroxyhydrocinnamic acid; 3-(3,5-Di-tert-butyl-4-hydroxyphenyl)propanoic acid; Propionic acid, 3-(3,5-bis(1,1-dimethylethyl)-4-hydroxyphenyl)-; Antioxidant AO 3114; DBPC-COOH; Phenol, 3,5-bis(1,1-dimethylethyl)-4-hydroxy-, ω-carboxypropyl derivative; Irganox 3114 precursor
EINECS	243-597-7

Quality Control

Our production of 3-(3,5-Di-tert-Butyl-4-Hydroxyphenyl)Propionic Acid adheres to stringent quality management protocols. Every batch is analyzed using advanced techniques like HPLC and GC to ensure high purity and consistency. A comprehensive Certificate of Analysis (COA) detailing identity, assay, impurity profile, and physical characteristics is provided with each shipment, ensuring full traceability and compliance with customer specifications.

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 nature, the container must be kept tightly sealed 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 structure
Assay (HPLC)	≥ 98.5%
Melting Point	156 - 162 °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.