Description

Hexasodium 3,3'-[Carbonylbis[Imino(1-Hydroxy-3-Sulphonatonaphthalene-6,2-Diyl)Azo]]Bis[6-Hydroxy-5-Sulphonatobenzoate] is a high-purity, water-soluble azo dye intermediate and complexing agent, valued for its strong chelating properties and vibrant colorant characteristics. This compound is essential for industries requiring precise metal ion control and stable, intense coloration in aqueous systems. It is primarily utilized by manufacturers in the textile dyeing, specialty ink formulation, and analytical reagent sectors.

Application

• Textile Dyeing Intermediate: A key precursor for synthesizing reactive and direct dyes for cotton, wool, and nylon, providing excellent wash-fastness.
• Specialty Ink Formulation: Used in the production of high-performance inks for jet printing and security markings due to its solubility and color stability.
• Analytical Chemistry Reagent: Serves as a metallochromic indicator and complexometric titrant in the analysis of metal ions like calcium and magnesium.
• Paper Coloring Agent: Imparts deep, uniform shades in high-quality paper and cardboard production.
• Biological Staining: Employed in histological stains for microscopy, leveraging its specific binding affinities.
• Water Treatment Additive: Acts as a sequestrant for controlling scale formation caused by hard water ions in industrial systems.

Basic Information

Product Name	Hexasodium 3,3'-[Carbonylbis[Imino(1-Hydroxy-3-Sulphonatonaphthalene-6,2-Diyl)Azo]]Bis[6-Hydroxy-5-Sulphonatobenzoate]
CAS No.	84041-78-1
Molecular Formula	C45H20N6Na6O23S6
Molecular Weight	1410.93 g/mol
Synonyms	Acid Blue 193; C.I. 15707; Hexasodium 3,3'-[carbonylbis[imino(1-hydroxy-3-sulphonato-6,2-naphthalenediyl)azo]]bis(6-hydroxy-5-sulphobenzoate); Calcon Carboxylic Acid; 3,3'-[Carbonylbis[imino(1-hydroxy-3,6-disulphonato-2-naphthyl)azo]]bis(6-hydroxybenzoic acid) hexasodium salt; NN'-Bis(2-hydroxy-1-naphthylazo-3,6-disulfonic acid)urea hexasodium salt; Eriochrome Blue Black R; Mordant Blue 9
EINECS	Contact for details

Quality Control

Our production of Hexasodium 3,3'-[Carbonylbis[Imino(1-Hydroxy-3-Sulphonatonaphthalene-6,2-Diyl)Azo]]Bis[6-Hydroxy-5-Sulphonatobenzoate] adheres to stringent quality management protocols. Each batch undergoes comprehensive analysis to ensure consistency, purity, and performance. Certificates of Analysis (COA) documenting key parameters such as assay, impurity profile, and heavy metal content are available upon request 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). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed after each use to prevent absorption of atmospheric moisture, which can affect product performance and stability.

Specification

Item	Specification
Appearance	Dark blue to black powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Loss on Drying	≤ 5.0%
Sulfated Ash	≤ 30.0%
Heavy Metals (as Pb)	≤ 20 ppm
Water Solubility	Completely soluble
pH (1% Solution)	7.0 - 9.0

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