Description

(E)-4-[(4-Hydroxyphenyl)Azo]Benzoic Acid is an azo dye intermediate characterized by its distinct molecular structure, which is critical for imparting color and functional properties in advanced formulations. This compound matters for its role as a precise chemical building block, enabling the synthesis of specialized dyes and pigments with specific light-absorption characteristics. It is needed by manufacturers in the dyes and pigments, specialty chemicals, and advanced material research sectors who require high-purity intermediates for consistent and reliable production.

Application

This azo compound serves as a versatile intermediate with several key industrial applications:

• Dye and Pigment Synthesis: Primary intermediate for manufacturing azo dyes, particularly those requiring a hydroxyphenylazo benzoic acid backbone for specific hues and properties.
• Specialty Colorants: Used in the production of high-performance colorants for inks, coatings, and plastics where thermal and light stability are important.
• Research & Development: A valuable building block in chemical R&D for creating novel chromophores and functional molecules with tailored optical properties.
• Analytical Reagents: Potential use as a standard or reagent in analytical chemistry for method development and calibration.
• Functional Material Precursor: Investigated for incorporation into advanced materials where its molecular structure can contribute to specific electronic or photonic functions.

Basic Information

Product Name	(E)-4-[(4-Hydroxyphenyl)Azo]Benzoic Acid
CAS No.	105299-45-4
Molecular Formula	C13H10N2O3
Molecular Weight	242.23 g/mol
Synonyms	4-[(4-Hydroxyphenyl)azo]benzoic acid; (E)-4-((4-Hydroxyphenyl)diazenyl)benzoic acid; p-(p-Hydroxybenzeneazo)benzoic acid; Benzoic acid, 4-[(4-hydroxyphenyl)azo]-; 4-Carboxy-4'-hydroxyazobenzene; Azobenzene-4-carboxylic acid, 4'-hydroxy-; Azo dye intermediate 105299-45-4
EINECS	Contact for details

Quality Control

Our (E)-4-[(4-Hydroxyphenyl)Azo]Benzoic Acid is produced under a strict quality management system. Every batch undergoes rigorous analytical testing to ensure identity, purity, and consistency. Certificates of Analysis (COA) detailing specifications and test results are provided and 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, and well-ventilated area at controlled room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed after opening to minimize exposure to atmospheric humidity.

Specification

Item	Specification
Appearance	Orange to red powder or crystals
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Loss on Drying	≤ 1.0%
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.