Description

Sodium 2-[(4-Hydroxyphenyl)Azo]Benzoate is a water-soluble azo compound primarily used as a colorant and intermediate in various industrial processes. This product matters for its ability to provide consistent, vibrant coloration and its utility in synthesizing more complex chemical structures. It is needed by manufacturers in the dye and pigment, textile, and specialty chemical industries seeking reliable intermediates for production.

Application

• Primary intermediate in the synthesis of acid dyes and pigments for textiles and leather.
• Colorant for specialty inks, including those used in packaging and security printing.
• Research and development chemical for novel azo dye synthesis and material science.
• Potential additive in analytical chemistry as a pH indicator or staining agent.
• Starting material for the production of lake pigments used in coatings and plastics.
• Laboratory reagent for educational and quality control purposes in chemical analysis.

Basic Information

Product Name	Sodium 2-[(4-Hydroxyphenyl)Azo]Benzoate
CAS No.	32050-78-5
Molecular Formula	C13H9N2NaO3
Molecular Weight	264.21 g/mol
Synonyms	Benzoic acid, 2-[(4-hydroxyphenyl)azo]-, sodium salt; C.I. 15865; Sodium 4-hydroxyazobenzene-2-carboxylate; 2-(4-Hydroxy-phenylazo)-benzoic acid sodium salt; Azobenzene-4-hydroxy-2-carboxylic acid sodium salt; Azo dye intermediate 32050-78-5; 4-Hydroxyazobenzene-2-carboxylic Acid Sodium Salt
EINECS	Contact for details

Quality Control

Our Sodium 2-[(4-Hydroxyphenyl)Azo]Benzoate is produced under a stringent quality management system. Each batch undergoes rigorous analytical testing to ensure identity, purity, and consistency. A comprehensive Certificate of Analysis (COA) detailing assay, impurity profile, and physical properties is provided with every shipment to guarantee it meets your specific application 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). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed after opening to prevent absorption of atmospheric moisture, which can affect product performance.

Specification

Item	Specification
Appearance	Orange to red powder or crystalline solid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Loss on Drying	≤ 5.0%
Heavy Metals (as Pb)	≤ 20 ppm
Water Solubility	Freely soluble

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