Description

5-tert-Butyl-m-Cresol is a sterically hindered phenolic compound widely used as a versatile intermediate and antioxidant. Its molecular structure provides excellent stability, making it a critical component for protecting materials from 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 formulations.

Application

• Polymer Stabilizer: Acts as a primary antioxidant in plastics and synthetic rubbers to prevent thermal and oxidative degradation during processing and service life.
• Lubricant & Fuel Additive: Used as an antioxidant additive in industrial lubricants, greases, and fuels to inhibit gum formation and extend operational stability.
• Chemical Intermediate: Serves as a key building block in the synthesis of more complex hindered phenol antioxidants and light stabilizers.
• Adhesive & Sealant Formulations: Incorporated to improve the aging resistance and durability of adhesive and sealant products.
• UV Stabilizer Synergist: Works in conjunction with other stabilizers to enhance the overall weatherability of coatings and polymeric materials.
• Industrial Preservative: Functions as an antioxidant in various industrial fluids and process streams to maintain product quality.

Basic Information

Product Name	5-tert-Butyl-m-Cresol
CAS No.	4892-31-3
Molecular Formula	C11H16O
Molecular Weight	164.24 g/mol
Synonyms	3-Methyl-5-tert-butylphenol; 5-tert-Butyl-3-methylphenol; m-Cresol, 5-tert-butyl-; Butylated Hydroxytoluene (BHT) related isomer; 2-tert-Butyl-5-methylphenol; Antioxidant BHT precursor; Phenol, 3-(1,1-dimethylethyl)-5-methyl-; 5-(1,1-Dimethylethyl)-3-methylphenol
EINECS	225-502-4

Quality Control

Our 5-tert-Butyl-m-Cresol is manufactured 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 key parameters 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). This material is easily oxidized; for long-term storage, maintaining an inert atmosphere (e.g., under nitrogen) is recommended to preserve product quality. Keep away from strong oxidizing agents.

Specification

Item	Specification
Appearance	White to off-white crystalline powder or flakes
Identification (IR)	Conforms to standard
Assay (HPLC)	≥ 98.5%
Melting Point	70°C - 74°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.