Description

6-[[2,4-Dihydroxy-3-[(2-Hydroxy-3-Nitro-5-Sulphophenyl)Azo]Phenyl]Azo]-4-Hydroxy-3-[(4-Nitrophenyl)Azo]Naphthalene-2-Sulphonic Acid is a complex, high-purity azo dye intermediate of significant industrial importance. Its intricate molecular structure provides unique chromophoric properties, making it a critical precursor for synthesizing specialized dyes and pigments. This compound is essential for manufacturers in the textile, ink, and specialty coatings industries seeking to produce vivid, stable colors with specific performance characteristics.

Application

• Primary Intermediate for Azo Dyes: Key building block for the synthesis of high-performance, polyazo direct dyes and acid dyes, particularly for textile fibers like cotton, wool, and nylon.
• Specialty Pigment Manufacturing: Used in the production of complex organic pigments for applications requiring high color strength and durability.
• Inkjet and Printing Inks: Serves as a precursor for dyes used in advanced digital printing inks, where color purity and stability are paramount.
• Liquid Crystal Display (LCD) Color Filters: Potential use in the synthesis of dyes for color filters in electronic displays, due to its ability to produce specific color hues.
• Biological Staining Reagents: Can be utilized in the development of histological stains for microscopy, leveraging its strong chromogenic properties.
• Research & Development: A valuable compound for academic and industrial R&D in organic synthesis, dye chemistry, and material science.

Basic Information

Product Name	6-[[2,4-Dihydroxy-3-[(2-Hydroxy-3-Nitro-5-Sulphophenyl)Azo]Phenyl]Azo]-4-Hydroxy-3-[(4-Nitrophenyl)Azo]Naphthalene-2-Sulphonic Acid
CAS No.	82599-59-5
Molecular Formula	C28H17N7O13S2
Molecular Weight	723.60 g/mol
Synonyms	6-[[2,4-Dihydroxy-3-[(2-hydroxy-3-nitro-5-sulfophenyl)azo]phenyl]azo]-4-hydroxy-3-[(4-nitrophenyl)azo]naphthalene-2-sulfonic acid; Acid Black 210 (C.I. 300310); C.I. Acid Black 210; Black 210 (Acid); Acid Black 210; Polyazo dye intermediate; Trisazo dye intermediate; Naphthalenesulfonic acid derivative azo dye
EINECS	Contact for details

Quality Control

Our production of this advanced dye intermediate adheres to strict quality management systems, ensuring batch-to-batch consistency and purity. Quality is verified through comprehensive analytical techniques including HPLC, UV-Vis spectroscopy, and titration methods. A Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is provided with each shipment to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at a controlled room temperature (15-25°C). Due to its hygroscopic nature, the container must be kept tightly sealed to prevent moisture absorption, which can affect product stability and performance. Keep away from incompatible materials.

Specification

Item	Specification
Appearance	Dark brown to black powder or solid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Moisture Content (KF)	≤ 5.0%
Sulfated Ash	≤ 2.0%
Heavy Metals (as Pb)	≤ 20 ppm
Solubility (1% in Water)	Complete, clear solution

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