Description

4-(4-Amino-Phenoxy)-Benzoic Acid is a high-purity aromatic amine derivative with a bifunctional molecular structure, serving as a critical building block in advanced organic synthesis. Its core value lies in providing a versatile scaffold for constructing complex molecules, enabling precise control over material properties in high-performance applications. This compound is essential for R&D chemists and production engineers in the pharmaceutical, agrochemical, and specialty polymer industries seeking to develop novel active ingredients and functional materials.

Application

• Pharmaceutical Intermediate: Key precursor in the synthesis of novel drug candidates, particularly for kinase inhibitors and other targeted therapies.
• Agrochemical Synthesis: Building block for developing advanced herbicides, fungicides, and plant growth regulators with enhanced efficacy.
• Polymer & Material Science: Monomer for producing high-performance polyamides, polyimides, and liquid crystalline polymers (LCPs) with excellent thermal and mechanical stability.
• Dye & Pigment Manufacturing: Intermediate in the production of advanced organic pigments and dyes for electronics and specialty coatings.
• Crosslinking Agent: Used in epoxy resin systems and other thermosetting polymers to modify curing characteristics and final material properties.
• Research & Development: Valuable tool in academic and industrial R&D for exploring new chemical entities and reaction pathways.

Basic Information

Product Name	4-(4-Amino-Phenoxy)-Benzoic Acid
CAS No.	28999-69-1
Molecular Formula	C13H11NO3
Molecular Weight	229.23 g/mol
Synonyms	4-(4-Aminophenoxy)benzoic acid; Benzoic acid, 4-(4-aminophenoxy)-; 4-Carboxy-4'-aminodiphenyl ether; p-(p-Aminophenoxy)benzoic acid; 4-Amino-4'-carboxydiphenyl ether; APBA; 28999-69-1; 4-(4-Aminophenoxy)benzoic acid
EINECS	Contact for details

Quality Control

Our 4-(4-Amino-Phenoxy)-Benzoic Acid is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation, to ensure it meets exacting standards for research and industrial synthesis. Certificates of Analysis (COA) documenting batch-specific results are available upon request to support your quality assurance and regulatory needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated place at a controlled room temperature (15-25°C). This material is easily oxidized; for long-term storage, consider keeping under an inert atmosphere such as nitrogen or argon. Keep away from strong oxidizing agents.

Specification

Item	Specification
Appearance	Off-white to light yellow crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
Heavy Metals (as Pb)	≤ 10 ppm
Related Substances (HPLC)	Individual impurity ≤ 0.5%; Total impurities ≤ 1.5%

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