Description

3-tert-Butyl-4-Hydroxybenzoic Acid is a specialized phenolic carboxylic acid derivative that serves as a versatile intermediate in advanced organic synthesis. This compound is valued for its dual functionality, offering both a sterically hindered phenolic group and a carboxylic acid moiety, which enables its use in creating high-performance materials and fine chemicals. It is particularly relevant for manufacturers in the pharmaceutical, agrochemical, and polymer industries seeking to develop products with enhanced stability or specific functional properties.

Application

• Pharmaceutical Intermediate: Key building block in the synthesis of active pharmaceutical ingredients (APIs), particularly those requiring hindered phenol structures for antioxidant activity or metabolic stability.
• Polymer Additive Precursor: Used to synthesize specialized antioxidants and light stabilizers for plastics, rubbers, and synthetic fibers to prevent thermal and UV degradation.
• Agrochemical Synthesis: Intermediate in the production of certain herbicides, fungicides, and plant growth regulators where the tert-butylphenol moiety is beneficial.
• Fine Chemical Production: Serves as a starting material or intermediate for dyes, pigments, and other performance chemicals requiring a substituted benzoic acid framework.
• Research & Development: Utilized in academic and industrial R&D for exploring new synthetic methodologies and developing novel compounds with specific chemical functionalities.
• Liquid Crystal Materials: Potential intermediate in the synthesis of certain mesogenic compounds for display technologies.

Basic Information

Product Name	3-tert-Butyl-4-Hydroxybenzoic Acid
CAS No.	66737-88-0
Molecular Formula	C11H14O3
Molecular Weight	194.23 g/mol
Synonyms	4-Hydroxy-3-tert-butylbenzoic Acid; 3-(1,1-Dimethylethyl)-4-hydroxybenzoic Acid; Benzoic acid, 3-(1,1-dimethylethyl)-4-hydroxy-; TBHA; 3-Tert-Butyl-4-hydroxybenzoic acid; 3-t-Butyl-4-hydroxybenzoic acid
EINECS	Contact for details

Quality Control

Our 3-tert-Butyl-4-Hydroxybenzoic Acid is manufactured under a strict quality management system. Each batch undergoes comprehensive analytical testing to ensure it meets precise specifications for identity, purity, and impurity profiles. Certificates of Analysis (COA) documenting results from HPLC, IR, and other relevant methods are provided with every shipment to guarantee traceability and batch-to-batch consistency for your critical processes.

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, consider an inert atmosphere. Keep away from strong oxidizing agents, strong bases, and heat sources.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	158°C - 162°C
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
Heavy Metals (as Pb)	≤ 20 ppm

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