Description

2-Naphthalenesulfonic Acid, 6-(2,3-Dibromo-1-Oxopropyl)Amino-3-5-(2,3-Dibromo-1-Oxopropyl)Amino-2-Sulfophenylazo-4-Hydroxy-, Disodium Salt is a high-purity, functionalized azo dye intermediate with a complex, multi-functional molecular structure. This compound matters for its role as a critical precursor in the synthesis of specialized dyes and pigments, offering unique color properties and binding characteristics. Industrial manufacturers and R&D laboratories in the dyestuff, textile, and specialty chemical sectors require this material for developing advanced coloring agents and functional materials.

Application

• Primary Intermediate for Reactive and Direct Dyes: A key building block in the synthesis of high-performance azo dyes used for coloring cotton, wool, and nylon fibers.
• Specialty Pigment Manufacturing: Used in the production of complex organic pigments for inks, coatings, and plastics that require specific color fastness and stability.
• Research & Development: Serves as a sophisticated starting material in chemical research for developing novel chromophores and functional dyes.
• Functional Material Synthesis: Potential applications in creating materials for optical sensors or light-harvesting systems due to its conjugated azo-sulfonate structure.
• Textile Chemical Auxiliaries: May be utilized in formulating specialized dye-fixing agents or textile treatment chemicals.

Basic Information

Item	Detail
Product Name	2-Naphthalenesulfonic Acid, 6-(2,3-Dibromo-1-Oxopropyl)Amino-3-5-(2,3-Dibromo-1-Oxopropyl)Amino-2-Sulfophenylazo-4-Hydroxy-, Disodium Salt
CAS No.	83137-15-9
Molecular Formula	C26H20Br4N4Na2O10S2
Molecular Weight	1019.1 g/mol (approx.)
Synonyms	Disodium 6,6'-(2-hydroxy-5-sulfo-1,3-phenylene)bis(azo)bis(4-amino-5-hydroxy-2,7-naphthalenedisulfonate) tetrabromo derivative; Reactive Dye Intermediate; Tetrabrominated Azo Dye Intermediate; C.I. Reactive Black 5 related intermediate; 6,6'-[(2-Hydroxy-5-sulfophenylene)bis(azo)]bis[4-amino-5-hydroxy-2,7-naphthalenedisulfonic acid] tetrabromo derivative disodium salt; Azo dye precursor CAS 83137-15-9
EINECS	Contact for details

Quality Control

Our production of this advanced intermediate adheres to strict quality management systems to ensure batch-to-batch consistency and purity. Each lot is characterized using advanced analytical techniques including HPLC, UV-Vis spectroscopy, and elemental analysis. A comprehensive Certificate of Analysis (COA) detailing identity, purity, and impurity profiles is provided with every shipment to support your quality assurance and regulatory needs.

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 stability and performance.

Specification

Item	Specification
Appearance	Dark colored powder or solid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Loss on Drying	≤ 5.0%
Heavy Metals (as Pb)	≤ 20 ppm
Residual Solvents (GC)	Meets ICH guidelines
Bromine Content	Contact for details

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