Description

5-(4-Carboxyphenyl)Azo-2-Hydroxybenzeneacetic Acid is a specialized azo dye intermediate and organic synthesis building block. This compound is valued for its precise molecular structure, which serves as a key chromophore and functional group carrier in advanced chemical manufacturing. It is primarily required by manufacturers in the fine chemicals, specialty dyes, and pharmaceutical research sectors for synthesizing high-performance pigments, analytical reagents, and complex organic molecules.

Application

• Dye and Pigment Intermediate: A critical precursor for the synthesis of high-value azo dyes and organic pigments, particularly for applications requiring specific color fastness and stability.
• Pharmaceutical Research: Used as a building block in the research and development of novel active pharmaceutical ingredients (APIs) and diagnostic agents.
• Analytical Chemistry: Employed in the preparation of chromogenic reagents and indicators for complexometric titrations and metal ion detection.
• Functional Material Synthesis: Serves as a monomer or modifier in the production of advanced polymers and materials with specific optical or chemical properties.
• Chemical Research: A versatile intermediate for organic synthesis, particularly in reactions involving azo coupling and carboxylic acid functionalization.

Basic Information

Product Name	5-(4-Carboxyphenyl)Azo-2-Hydroxybenzeneacetic Acid
CAS No.	78028-03-2
Molecular Formula	C15H12N2O5
Molecular Weight	300.27 g/mol
Synonyms	5-[(4-Carboxyphenyl)azo]-2-hydroxybenzeneacetic acid; 2-Hydroxy-5-[(4-carboxyphenyl)azo]benzeneacetic Acid; 4-[(2-Carboxymethyl-4-hydroxyphenyl)azo]benzoic Acid; Azo Dye Intermediate Yellow 5G; Benzoic acid, 4-[(2-carboxymethyl-4-hydroxyphenyl)azo]-; 78028-03-2; 5-(4-Carboxybenzeneazo)salicylic acid
EINECS	Contact for details

Quality Control

Our production of 5-(4-Carboxyphenyl)Azo-2-Hydroxybenzeneacetic Acid adheres to stringent quality management protocols to ensure batch-to-batch consistency and purity. Each lot is analyzed against comprehensive specifications, including identity confirmation, assay, and impurity profile. A Certificate of Analysis (COA) detailing all test results is provided with every shipment to support your quality assurance and regulatory compliance needs.

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 incompatible materials such as strong acids, bases, and oxidizing agents. The product is light-sensitive (store away from light).

Specification

Item	Specification
Appearance	Yellow to orange-yellow powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Loss on Drying	≤ 1.0%
Residue on Ignition	≤ 0.5%
Heavy Metals (as Pb)	≤ 20 ppm

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