Description

3,5-Di-tert-Butyl-4-Hydroxybenzoic Acid is a sterically hindered phenolic compound that serves as a versatile intermediate and functional additive. Its molecular structure provides excellent antioxidant and stabilizing properties, making it valuable for protecting materials from thermal and oxidative degradation. This high-purity chemical is essential for manufacturers in the polymer, lubricant, and specialty chemical industries seeking to enhance product longevity and performance.

Application

• Polymer Additive: Acts as a highly effective antioxidant and light stabilizer in plastics (e.g., polyolefins, PVC) and synthetic rubbers to prevent chain scission and discoloration.
• Lubricant & Fuel Stabilizer: Used in formulating industrial lubricants, greases, and fuels to inhibit oxidation, reduce sludge formation, and extend service life.
• Chemical Intermediate: A key building block for synthesizing more complex hindered phenol antioxidants, UV absorbers, and other specialty additives.
• Coating & Adhesive Formulations: Incorporated into paints, varnishes, and adhesives to improve their resistance to environmental aging and thermal breakdown.
• Pharmaceutical & Agrochemical Intermediates: Serves as a precursor in the research and development of active pharmaceutical ingredients (APIs) and agrochemicals.

Basic Information

Product Name	3,5-Di-tert-Butyl-4-Hydroxybenzoic Acid
CAS No.	1421-49-4
Molecular Formula	C15H22O3
Molecular Weight	250.33 g/mol
Synonyms	3,5-Bis(1,1-dimethylethyl)-4-hydroxybenzoic Acid; 4-Hydroxy-3,5-di-tert-butylbenzoic Acid; DBHA; Benzoic acid, 3,5-bis(1,1-dimethylethyl)-4-hydroxy-; 3,5-Di-tert-butyl-4-hydroxybenzoic acid; Antioxidant 1790; Butylhydroxybenzoic Acid
EINECS	215-823-5

Quality Control

Our production of 3,5-Di-tert-Butyl-4-Hydroxybenzoic Acid adheres to stringent quality management protocols. Every batch is analyzed using advanced techniques like HPLC and GC to ensure high chemical purity and consistency. A comprehensive Certificate of Analysis (COA) detailing identity, assay, and impurity profiles is provided with each shipment to guarantee compliance with your specifications.

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). Keep away from strong oxidizing agents and heat sources.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	190°C - 195°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.