Description

3-(4-tert-Butyl-Phenyl)-Propionic Acid is a high-purity aromatic carboxylic acid derivative, serving as a critical intermediate in advanced organic synthesis. Its value lies in the combination of the bulky, lipophilic tert-butyl group and the reactive propionic acid moiety, enabling precise molecular design. This compound is essential for researchers and manufacturers in the pharmaceutical, agrochemical, and specialty chemical industries seeking to develop novel active ingredients and functional materials.

Application

• Pharmaceutical Intermediate: Key building block for the synthesis of non-steroidal anti-inflammatory drugs (NSAIDs) and other bioactive molecules.
• Agrochemical Synthesis: Used in the production of advanced herbicides, fungicides, and plant growth regulators.
• Liquid Crystal & OLED Materials: Serves as a precursor for mesogenic compounds and electron-transport materials in display technologies.
• Polymer Additives: Incorporated as a monomer or modifier to enhance the thermal stability and UV resistance of engineering plastics.
• Fragrance & Flavor Chemistry: Intermediate for synthesizing specific aromatic esters and fixatives.
• Organic Synthesis Reagent: A versatile reagent for introducing the 4-tert-butylphenylpropionyl group in coupling reactions and derivatizations.

Basic Information

Product Name	3-(4-tert-Butyl-Phenyl)-Propionic Acid
CAS No.	1208-64-6
Molecular Formula	C₁₃H₁₈O₂
Molecular Weight	206.28 g/mol
Synonyms	4-tert-Butylphenylpropionic Acid; 3-(4-tert-Butylphenyl)propanoic Acid; 4-(1,1-Dimethylethyl)benzenepropanoic Acid; Benzenepropanoic acid, 4-(1,1-dimethylethyl)-; p-tert-Butylphenylpropionic Acid; 4-tert-Butylhydrocinnamic Acid; 3-(p-tert-Butylphenyl)propionic Acid; NSC 403697
EINECS	214-904-9

Quality Control

Our 3-(4-tert-Butyl-Phenyl)-Propionic Acid is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC, GC, and NMR, to ensure identity, purity, and consistency. We provide comprehensive Certificates of Analysis (COA) with each shipment, detailing all specified parameters. Our quality commitment supports applications requiring high-purity intermediates under cGMP or ISO 9001 frameworks.

Storage

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

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	95 - 99 °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.