Description

1-(3,5-Di-tert-Butyl-4-Hydroxyphenyl)-1,2-Ethanediol is a high-purity phenolic antioxidant intermediate, valued for its ability to impart superior oxidative stability to polymers and synthetic materials. Its molecular structure is specifically engineered to interrupt free-radical chain reactions, thereby preventing degradation and extending the service life of finished products. This compound is essential for manufacturers in the plastics, rubber, and specialty chemical industries seeking to enhance the durability and performance of their formulations.

Application

• Primary Antioxidant Intermediate: A key building block in the synthesis of high-performance phenolic antioxidants like Irganox 1425 and other hindered phenol stabilizers.
• Polymer Stabilization: Used to protect polyolefins (PP, PE), engineering plastics, and synthetic rubbers from thermal and oxidative degradation during processing and end-use.
• Fuel & Lubricant Additives: Incorporated into formulations to prevent gum formation and oxidation in fuels, oils, and greases, improving their shelf life and performance.
• Adhesive & Sealant Formulations: Enhances the long-term stability and prevents embrittlement of hot-melt adhesives, sealants, and other reactive resin systems.
• Coating Resins: Provides antioxidant protection to acrylic, alkyd, and polyurethane coatings, maintaining color and film integrity.

Basic Information

Product Name	1-(3,5-Di-tert-Butyl-4-Hydroxyphenyl)-1,2-Ethanediol
CAS No.	125489-21-6
Molecular Formula	C20H34O3
Molecular Weight	322.48 g/mol
Synonyms	2-(3,5-Di-tert-butyl-4-hydroxyphenyl)-2-hydroxyethanol; 1,2-Ethanediol, 1-(3,5-bis(1,1-dimethylethyl)-4-hydroxyphenyl)-; Irganox 1425 precursor; BHPE; Antioxidant 1425 intermediate; 3,5-Di-tert-butyl-4-hydroxybenzyl glycol; Ethan-1,2-diol, 1-(3,5-di-tert-butyl-4-hydroxyphenyl)-
EINECS	Contact for details

Quality Control

Our production of 1-(3,5-Di-tert-Butyl-4-Hydroxyphenyl)-1,2-Ethanediol adheres to strict quality management protocols to ensure batch-to-batch consistency and high purity. The material is characterized and released against comprehensive specifications, including identity confirmation by FT-IR and purity determination by HPLC. Certificates of Analysis (COA) documenting all critical quality attributes are provided with each shipment.

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 (moisture-sensitive) nature, the container must be kept tightly sealed after opening to prevent absorption of atmospheric moisture. For long-term storage, consider using an inert atmosphere (e.g., nitrogen) to minimize potential oxidation.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to reference spectrum
Assay (HPLC)	≥ 98.5%
Melting Point	158 - 162 °C
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%

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