Description

2-(4-Hydroxyphenylazo)Benzoic Acid is an azo dye intermediate and analytical reagent characterized by its distinct molecular structure. This compound matters for its utility as a key precursor in the synthesis of specialized dyes, pigments, and colorants, as well as its role in chemical analysis. Industries that need it include manufacturers of high-performance pigments, research laboratories developing new materials, and producers of specialized chemical reagents for analytical applications.

Application

• Dye and Pigment Intermediate: A crucial building block for synthesizing azo dyes and organic pigments used in inks, coatings, and plastics.
• Analytical Chemistry Reagent: Employed as a chromogenic agent or complexometric indicator in various spectrophotometric and titrimetric analyses.
• Research & Development: Serves as a starting material or reference standard in organic synthesis and material science research for novel compounds.
• Specialty Chemical Manufacturing: Used in the production of performance chemicals where specific light-absorbing or color properties are required.

Basic Information

Product Name	2-(4-Hydroxyphenylazo)Benzoic Acid
CAS No.	1634-82-8
Molecular Formula	C13H10N2O3
Molecular Weight	242.23 g/mol
Synonyms	4-Hydroxyazobenzene-2-carboxylic Acid; Benzoic Acid, 2-[(4-hydroxyphenyl)azo]-; p-Hydroxyazobenzene-o-carboxylic Acid; C.I. 13065; Azobenzene-4-ol-2-carboxylic Acid; 2-(p-Hydroxyphenylazo)benzoic Acid; 2-[(4-Hydroxyphenyl)diazenyl]benzoic Acid
EINECS	216-654-5

Quality Control

Our 2-(4-Hydroxyphenylazo)Benzoic Acid is produced under a strict quality management system. Each batch undergoes comprehensive analytical testing to ensure identity, purity, and consistency. A detailed Certificate of Analysis (COA) documenting specifications such as assay, melting point, and impurity profile is provided with every shipment to guarantee compliance with your technical requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). Keep away from incompatible materials. Due to its light-sensitive nature, prolonged exposure to direct light should be avoided.

Specification

Item	Specification
Appearance	Orange to red crystalline powder
Identification (IR)	Conforms to structure
Melting Point	Contact for details
Assay (HPLC)	≥ 98.0%
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.