Description

3,5-Di-tert-Butyl-4-Hydroxybenzenesulfonic Acid is a sterically hindered phenolic sulfonic acid derivative, serving as a versatile intermediate and functional additive. Its molecular structure provides excellent antioxidant and acid catalyst properties, making it valuable for enhancing material stability and facilitating specific chemical reactions. This compound is primarily utilized by manufacturers in the polymer, lubricant, and specialty chemical industries seeking to improve product performance and longevity.

Application

• Polymer Stabilizer: Acts as a key intermediate in the synthesis of high-performance phenolic antioxidants for plastics (e.g., polyolefins) and synthetic rubbers to prevent thermal and oxidative degradation.
• Lubricant & Fuel Additive: Used in formulating antioxidant packages for engine oils, industrial lubricants, and fuels to inhibit sludge formation and extend service life.
• Chemical Synthesis Intermediate: Serves as a crucial building block for producing more complex hindered phenol antioxidants, UV stabilizers, and other specialty chemicals.
• Acid Catalyst: Functions as an organic acid catalyst in specific esterification and condensation reactions within fine chemical manufacturing.
• Research & Development: Employed in academic and industrial R&D for studying antioxidant mechanisms and developing new stabilization systems.

Basic Information

Product Name	3,5-Di-tert-Butyl-4-Hydroxybenzenesulfonic Acid
CAS No.	25679-39-4
Molecular Formula	C14H22O4S
Molecular Weight	286.39 g/mol
Synonyms	Benzenesulfonic acid, 3,5-bis(1,1-dimethylethyl)-4-hydroxy-; 4-Hydroxy-3,5-di-tert-butylbenzenesulfonic Acid; 2,6-Di-tert-butyl-4-sulfophenol; DBSP; 3,5-Di-tert-butyl-4-hydroxybenzenesulphonic acid; 3,5-Di-tert-butyl-4-hydroxyphenylsulfonic acid; 4-Sulfo-2,6-di-tert-butylphenol
EINECS	247-165-0

Quality Control

Our production of 3,5-Di-tert-Butyl-4-Hydroxybenzenesulfonic Acid adheres to stringent quality management protocols. Every batch undergoes comprehensive analytical testing, including assay, purity profiling, and impurity identification, to ensure consistency and compliance with customer specifications. A Certificate of Analysis (COA) detailing all test results is 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). This material is hygroscopic (moisture-sensitive) and should be kept under dry conditions. Keep away from strong bases and oxidizing agents.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	Contact for details
Loss on Drying	≤ 1.0%
Sulfated Ash	≤ 0.1%

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