Description

2-Hydroxy-5-[[5-Hydroxy-6-[(2-Sodiooxycarbonylphenyl)Azo]-7-Sodiosulfo-2-Naphthalenyl]Azo]Benzoic Acid Sodium Salt is a high-purity, water-soluble azo dye intermediate of significant commercial importance. Its value lies in its role as a key precursor for synthesizing vibrant and stable dyes and pigments, particularly for textiles and specialty inks. This compound is essential for manufacturers and R&D facilities in the dye, pigment, and fine chemical industries seeking reliable intermediates for colorant production.

Application

• Primary Intermediate for Azo Dyes & Pigments: Serves as a crucial building block in the synthesis of complex, high-performance azo dyes, especially for cotton and other cellulose fibers.
• Textile Dye Manufacturing: Used in the production of direct, acid, and reactive dyes that require specific chromophores for color fastness and brightness.
• Specialty Ink Formulation: Employed in the creation of colorants for inks used in packaging, security printing, and other high-value applications.
• Research & Development: A valuable compound for chemical research focused on novel dye structures, color chemistry, and material science.
• Fine Chemical Synthesis: Acts as an intermediate in the multi-step synthesis of other complex organic molecules and functional materials.

Basic Information

Item	Details
Product Name	2-Hydroxy-5-[[5-Hydroxy-6-[(2-Sodiooxycarbonylphenyl)Azo]-7-Sodiosulfo-2-Naphthalenyl]Azo]Benzoic Acid Sodium Salt
CAS No.	6406-36-6
Molecular Formula	C24H13N4Na3O10S
Molecular Weight	658.42 g/mol
Synonyms	Benzoic acid, 2-hydroxy-5-[[5-hydroxy-6-[(2-sodiooxycarbonylphenyl)azo]-7-sodiosulfo-2-naphthalenyl]azo]-, sodium salt; C.I. Acid Yellow 99; Acid Yellow 99; Azo dye intermediate YA; 2-Hydroxy-5-[(5-hydroxy-6-[(2-sodiooxycarbonylphenyl)azo]-7-sodiosulfo-2-naphthyl)azo]benzoic acid sodium salt; 6406-36-6; Sodium 5-[(5-hydroxy-6-[(2-sodiooxycarbonylphenyl)azo]-7-sulphonato-2-naphthyl)azo]salicylate
EINECS	Contact for details

Quality Control

Our 2-Hydroxy-5-[[5-Hydroxy-6-[(2-Sodiooxycarbonylphenyl)Azo]-7-Sodiosulfo-2-Naphthalenyl]Azo]Benzoic Acid Sodium Salt is produced under a strict quality management system. Every batch undergoes rigorous analytical testing to ensure consistent purity, identity, and performance as a dye intermediate. A comprehensive Certificate of Analysis (COA) detailing assay, impurity profile, and physical specifications is provided with each shipment to guarantee traceability and 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). 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 quality and handling.

Specification

Item	Specification
Appearance	Yellow to orange-brown powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Loss on Drying	≤ 5.0%
Sulfated Ash	Contact for details
Heavy Metals (as Pb)	≤ 20 ppm
Solubility (1% in Water)	Clear, yellow to orange solution

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