Description

4-tert-Butylbenzoic Acid CAS NO 1077-58-3 is a versatile organic compound characterized by a benzoic acid core substituted with a bulky tert-butyl group at the para position. This structural feature imparts unique steric and electronic properties, making it a valuable intermediate in advanced organic synthesis and specialty chemical manufacturing. It is primarily sought after by the pharmaceutical, agrochemical, and polymer industries for the production of fine chemicals, liquid crystal materials, and performance additives.

Application

• Pharmaceutical Intermediate: Key building block in the synthesis of active pharmaceutical ingredients (APIs) and drug candidates.
• Agrochemical Synthesis: Used in the production of herbicides, fungicides, and plant growth regulators.
• Liquid Crystal Materials: Serves as a precursor for mesogenic compounds used in display technologies.
• Polymer Additive: Acts as a modifier or stabilizer in specialty polymer formulations to enhance performance.
• Organic Synthesis: A valuable reagent for introducing the tert-butylbenzoate moiety into complex molecules.
• UV Absorber & Stabilizer Precursor: Used in the manufacture of light-stabilizing agents for plastics and coatings.

Basic Information

Product Name	4-tert-Butylbenzoic Acid
CAS No.	1077-58-3
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-Butylbenzoic Acid; p-Tertiary Butyl Benzoic Acid; 4-(tert-Butyl)benzoic Acid; Benzoic acid, p-tert-butyl-
EINECS	214-083-8

Quality Control

Our 4-tert-Butylbenzoic Acid is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing to ensure it meets the highest standards of purity and consistency. Certificates of Analysis (COA) detailing specific results for identity, assay, and impurity profiles are provided with every shipment and are available upon request.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). Keep away from strong bases, oxidizing agents, and sources of ignition.

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%
Residue on Ignition	≤ 0.1%

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