Description

4-(3-Aminophenoxy)Benzoic Acid is a high-purity aromatic amine derivative featuring both a carboxylic acid and a primary amine functional group on a diphenyl ether scaffold. This bifunctional structure makes it a versatile and valuable pharmaceutical intermediate and polymer precursor for advanced material synthesis. It is primarily utilized by R&D and production teams in the pharmaceutical, agrochemical, and specialty polymer industries seeking to develop novel active ingredients and high-performance resins.

Application

• Pharmaceutical Intermediate: A key building block in the synthesis of active pharmaceutical ingredients (APIs), particularly for compounds targeting central nervous system and cardiovascular diseases.
• Polymer Chemistry: Serves as a monomer for producing high-performance polyamides, polyimides, and polyesters with enhanced thermal stability and mechanical properties.
• Liquid Crystal Materials: Used in the development of advanced liquid crystal polymers (LCPs) and display materials due to its rigid, anisotropic molecular structure.
• Agrochemical Synthesis: Employed as a precursor in the manufacture of herbicides, fungicides, and plant growth regulators.
• Dye and Pigment Industry: Acts as an intermediate for synthesizing azo dyes and organic pigments, contributing to color strength and fastness.
• Cross-linking Agent: Functions as a cross-linker in epoxy and other thermosetting resin systems to improve network density and chemical resistance.
• Research & Development: A valuable tool for medicinal chemists and material scientists in academic and industrial research for novel compound discovery.

Basic Information

Product Name	4-(3-Aminophenoxy)Benzoic Acid
CAS No.	165250-87-3
Molecular Formula	C13H11NO3
Molecular Weight	229.23 g/mol
Synonyms	3'-Amino-4-phenoxybenzoic Acid; Benzoic acid, 4-(3-aminophenoxy)-; 4-(3-Aminophenoxy)benzoic acid; 4-(m-Aminophenoxy)benzoic Acid; 3-Amino-4'-carboxydiphenyl ether; [1,1'-Biphenyl]-4-carboxylic acid, 3'-amino-4'-oxy-; (3-Aminophenoxy)benzoic acid
EINECS	Contact for details

Quality Control

Our 4-(3-Aminophenoxy)Benzoic Acid is manufactured under a strict quality management system. Every batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation, to ensure it meets the high standards required for pharmaceutical and advanced material applications. Certificates of Analysis (COA) detailing batch-specific results are available upon request, providing full traceability and compliance assurance.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at room temperature (15-25°C). This product is hygroscopic (moisture-sensitive); keep the original container tightly sealed to minimize exposure to atmospheric humidity.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Loss on Drying	≤ 1.0%
Residue on Ignition	≤ 0.1%
Related Substances (HPLC)	Total impurities ≤ 2.0%

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