Description

Tetrasodium 3,3'-[Carbonylbis[Imino[2-[(Hydroxyacetyl)Amino]-4,1-Phenylene]Azo]]Bisnaphthalene-1,5-Disulphonate is a high-purity, water-soluble azo dye intermediate of significant commercial importance. This compound is valued for its role in synthesizing specialized dyes and pigments with enhanced color fastness and stability properties. It is primarily required by manufacturers in the textile, ink, and specialty chemical industries for producing high-performance colorants.

Application

• Primary Intermediate for Reactive Dyes: Key building block in the synthesis of high-quality reactive dyes for cotton and other cellulosic fibers.
• Specialty Pigment Manufacturing: Used in the production of complex organic pigments for inks, coatings, and plastics requiring specific hue and durability.
• Textile Colorant Synthesis: Essential for creating dyes that offer excellent wash-fastness and light-fastness in textile finishing.
• Research & Development: Serves as a critical reagent in chemical R&D for developing new chromophoric systems and functional dyes.
• Analytical Chemistry Reagent: Can be utilized as a standard or reagent in colorimetric analysis and diagnostic applications.
• Functional Material Production: Potential use in the synthesis of dyes for non-textile applications, such as in optical data storage or laser dyes.

Basic Information

Item	Detail
Product Name	Tetrasodium 3,3'-[Carbonylbis[Imino[2-[(Hydroxyacetyl)Amino]-4,1-Phenylene]Azo]]Bisnaphthalene-1,5-Disulphonate
CAS No.	83006-46-6
Molecular Formula	C45H28N8Na4O17S4
Molecular Weight	1153.0 g/mol (approx.)
Synonyms	Acid Blue 185; C.I. 74500; Tetrasodium 6,6'-[Carbonylbis[imino(2-acetamido-4,1-phenylene)azo]]bis(1,5-naphthalenedisulfonate); Reactive Blue 2; 83006-46-6; Azo dye intermediate 83006-46-6; C.I. Acid Blue 185
EINECS	Contact for details

Quality Control

Our production of Tetrasodium 3,3'-[Carbonylbis[Imino[2-[(Hydroxyacetyl)Amino]-4,1-Phenylene]Azo]]Bisnaphthalene-1,5-Disulphonate adheres to stringent quality management protocols. Every batch undergoes comprehensive analytical testing to ensure consistent purity, identity, and performance. Certificates of Analysis (COA) detailing specifications such as assay, impurity profile, and physical characteristics are provided and available upon request.

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 sealed to prevent absorption of atmospheric moisture.

Specification

Item	Specification
Appearance	Dark blue to violet 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 (in Water)	Freely soluble

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