Description

2,4-Bis(1,1-Dimethylethyl)-5-(1-Methylethyl)Phenol is a sterically hindered phenolic compound, valued for its role as a versatile intermediate and antioxidant. Its molecular structure provides excellent stability, making it a key component in formulations requiring protection against oxidative degradation. This product is essential for manufacturers in the polymer, lubricant, and specialty chemical industries seeking to enhance the longevity and performance of their materials.

Application

• Polymer Stabilizer: Acts as a primary antioxidant in polyolefins (e.g., polyethylene, polypropylene) and other polymers to prevent thermal and oxidative degradation during processing and service life.
• Lubricant & Fuel Additive: Used as an antioxidant additive in engine oils, industrial lubricants, and fuels to inhibit sludge formation and viscosity increase, extending equipment life.
• Rubber & Elastomer Antioxidant: Imparts aging resistance to synthetic rubbers, tires, and other elastomeric products, preventing cracking and loss of elasticity.
• Chemical Intermediate: Serves as a key building block for the synthesis of more complex hindered phenol antioxidants and other specialty chemicals.
• Adhesive & Sealant Formulations: Incorporated to improve the thermal stability and shelf-life of hot-melt adhesives, sealants, and caulks.
• Coating Additive: Provides antioxidant properties to protective coatings and paints, helping to maintain film integrity and color stability.

Basic Information

Product Name	2,4-Bis(1,1-Dimethylethyl)-5-(1-Methylethyl)Phenol
CAS No.	19245-42-2
Molecular Formula	C17H28O
Molecular Weight	248.40 g/mol
Synonyms	2,4-Di-tert-butyl-5-isopropylphenol; 5-Isopropyl-2,4-di-tert-butylphenol; Phenol, 2,4-bis(1,1-dimethylethyl)-5-(1-methylethyl)-; Antioxidant 57; AO 57; DBIP; 2,4-DTBPIP; 2,4-Di-tert-butyl-5-(1-methylethyl)phenol
EINECS	242-881-5

Quality Control

Our 2,4-Bis(1,1-Dimethylethyl)-5-(1-Methylethyl)Phenol is produced under a strict quality management system. Every batch undergoes rigorous analytical testing to ensure it meets precise specifications for purity, identity, and performance. Certificates of Analysis (COA) documenting these results are available upon request to support your quality assurance and regulatory compliance needs.

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, sparks, and open flame. This material is light-sensitive (store away from light).

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	58 - 62 °C
Loss on Drying	≤ 0.5%
Heavy Metals (as Pb)	≤ 10 ppm

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