Description

5-[[aminohydroxy[[4-[(4-nitro-2-sulphophenyl)amino]phenyl]azo]phenyl]azo]-4-hydroxy-3-[[4-[(4-nitro-2-sulphophenyl)amino]phenyl]azo]naphthalene-2,7-disulphonic acid, sodium salt is a high-purity, complex azo dye intermediate of significant industrial importance. This compound is valued for its ability to impart specific color properties and is a critical precursor in the synthesis of high-performance dyes and pigments. It is primarily needed by manufacturers in the textile, ink, and specialty chemical industries seeking reliable and consistent raw materials for their production processes.

Application

• Primary Intermediate for Azo Dyes: Serves as a key building block in the synthesis of high-value, complex azo dyes, particularly for textile fibers like cotton, wool, and nylon.
• Pigment Manufacturing: Used in the production of organic pigments for applications in inks, paints, coatings, and plastics where color fastness is required.
• Specialty Chemical Synthesis: Acts as a precursor for the development of specialized colorants used in research and advanced material science.
• Textile Dyeing: Employed in formulations for dyeing processes that require specific shades with good wash and light fastness properties.
• Laboratory & Research: Utilized as a standard or reagent in chemical research focused on dye chemistry, photochemistry, and material analysis.

Basic Information

Item	Details
Product Name	5-[[aminohydroxy[[4-[(4-nitro-2-sulphophenyl)amino]phenyl]azo]phenyl]azo]-4-hydroxy-3-[[4-[(4-nitro-2-sulphophenyl)amino]phenyl]azo]naphthalene-2,7-disulphonic acid, sodium salt
CAS No.	93839-64-6
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	C.I. Acid Black 210; Acid Black 210; Sodium 5-[[aminohydroxy[[4-[(4-nitro-2-sulphophenyl)amino]phenyl]azo]phenyl]azo]-4-hydroxy-3-[[4-[(4-nitro-2-sulphophenyl)amino]phenyl]azo]naphthalene-2,7-disulphonate; Azo dye intermediate for Acid Black 210; 93839-64-6; 5-[[Aminohydroxy[[4-[(4-nitro-2-sulfophenyl)amino]phenyl]azo]phenyl]azo]-4-hydroxy-3-[[4-[(4-nitro-2-sulfophenyl)amino]phenyl]azo]naphthalene-2,7-disulfonic acid sodium salt
EINECS	Contact for details

Quality Control

Our production of this azo dye intermediate adheres to stringent quality control protocols to ensure batch-to-batch consistency and high purity. Each lot is analyzed using advanced techniques like HPLC to confirm identity and assay. A Certificate of Analysis (COA) detailing purity, impurity profile, and physical specifications 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 each use to prevent degradation from atmospheric moisture.

Specification

Item	Specification
Appearance	Dark colored powder or solid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Loss on Drying	≤ 5.0%
Sulfated Ash	Contact for details
Heavy Metals	≤ 20 ppm

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