Description

2,5-Di-tert-Butylphenol is a sterically hindered phenolic compound with the CAS registry number 5875-45-6. This specialty chemical serves as a versatile intermediate and a highly effective antioxidant, prized for its ability to inhibit oxidative degradation in various materials. It is essential for manufacturers in the polymer, lubricant, and specialty chemical industries seeking to enhance product stability and longevity under demanding conditions.

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 reduce sludge formation, control viscosity increase, and extend operational life.
• Chemical Intermediate: A key building block for synthesizing more complex hindered phenol antioxidants, UV stabilizers, and other specialty additives.
• Rubber Industry: Employed as an anti-aging agent in synthetic rubbers and elastomers to protect against cracking and loss of elasticity caused by oxidation.
• Adhesive & Sealant Formulations: Enhances the shelf-life and performance stability of adhesives and sealants by preventing resin oxidation.
• Coating Additive: Incorporated into paints and coatings to protect the binder system from oxidative cross-linking and yellowing, maintaining film integrity and color.

Basic Information

Product Name	2,5-Di-tert-Butylphenol
CAS No.	5875-45-6
Molecular Formula	C14H22O
Molecular Weight	206.32 g/mol
Synonyms	2,5-Bis(1,1-dimethylethyl)phenol; 2,5-Di-tert-butylphenol; 2,5-DTBP; Phenol, 2,5-bis(1,1-dimethylethyl)-; 2,5-Di-t-butylphenol; 2,5-Di-tert-butyl-phenol; DBPC (in some contexts); 2,5-Bis(tert-butyl)phenol
EINECS	227-543-0

Quality Control

Our 2,5-Di-tert-Butylphenol is manufactured under a stringent quality management system. Every batch undergoes comprehensive analytical testing, including assay, purity, and impurity profile analysis, to ensure it meets exacting industry specifications. A detailed Certificate of Analysis (COA) confirming identity, purity, and compliance is provided with each shipment.

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 product is easily oxidized; for long-term storage, maintaining an inert atmosphere (e.g., under nitrogen) is recommended to preserve optimal quality. Keep away from strong oxidizing agents.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to reference spectrum
Assay (HPLC)	≥ 98.5%
Melting Point	96 - 100 °C
Loss on Drying	≤ 0.5%
Related Substances (HPLC)	Total impurities ≤ 1.5%

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