Description

4-tert-Butylbenzoic Acid is a versatile aromatic carboxylic acid derivative characterized by the presence of a bulky tert-butyl substituent. This structural feature makes it a valuable intermediate in organic synthesis, offering steric hindrance and lipophilicity for modifying compound properties. It is primarily sought after by manufacturers in the pharmaceutical, agrochemical, and polymer industries for the production of advanced materials, active ingredients, and specialty chemicals.

Application

• Pharmaceutical Intermediate: Used in the synthesis of active pharmaceutical ingredients (APIs), where the tert-butyl group can influence metabolic stability and bioavailability.
• Agrochemical Synthesis: Serves as a key building block for herbicides, fungicides, and plant growth regulators.
• Polymer Additive & Monomer: Functions as a modifier or co-monomer in the production of polyesters, polyamides, and other high-performance polymers to alter thermal and mechanical properties.
• Liquid Crystal & OLED Materials: Acts as a precursor in the manufacture of organic electronic materials and liquid crystal displays (LCDs).
• Corrosion Inhibitor Precursor: Utilized in formulating additives for lubricants and metalworking fluids.
• Fragrance & Dye Intermediate: Employed in the synthesis of certain fragrance compounds and organic pigments.
• Organic Synthesis Reagent: A valuable reagent for introducing the 4-tert-butylbenzoate moiety into more complex molecules via esterification or amidation reactions.
• Research & Development: Used in academic and industrial R&D labs for chemical studies and process development.

Basic Information

Product Name	4-tert-Butylbenzoic Acid
CAS No.	98-73-7
Molecular Formula	C11H14O2
Molecular Weight	178.23 g/mol
Synonyms	p-tert-Butylbenzoic Acid; 4-(1,1-Dimethylethyl)benzoic Acid; Benzoic acid, 4-(1,1-dimethylethyl)-; PTBBA; 4-tert-Butylbenzenecarboxylic Acid; p-Tertiary Butyl Benzoic Acid; 4-(tert-Butyl)benzoic Acid; NSC 2217
EINECS	202-696-3

Quality Control

Our 4-tert-Butylbenzoic Acid is manufactured under a strict quality management system. Every batch undergoes rigorous analytical testing to ensure it meets high-purity standards suitable for industrial and fine chemical synthesis. A comprehensive Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is provided with each shipment to guarantee traceability and batch-to-batch consistency.

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). Due to its hygroscopic nature, keep the container tightly sealed when not in use to minimize exposure to atmospheric moisture.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms
Assay (HPLC)	≥ 98.0%
Melting Point	164 - 168 °C
Loss on Drying	≤ 0.5%
Heavy Metals (as Pb)	≤ 10 ppm
Residue on Ignition	≤ 0.1%

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