Description

4-Amino-6-[[4'-[(8-Amino-1-Hydroxy-3,6-Disulfo-2-Naphtyl)Azo]-3,3'-Dimethyl-4-Biphenylyl]Azo]-5-Hydroxy-1,3-Naphthalenedisulfonic Acid Tetrasodium Salt is a high-purity, water-soluble azo dye intermediate of significant industrial importance. Its complex polyazo structure provides excellent chromophoric properties, making it a critical precursor for synthesizing high-value dyes and pigments. This compound is essential for manufacturers requiring precise colorants and functional dyes for textiles, inks, and advanced material applications.

Application

• Primary Intermediate for Dyes & Pigments: Serves as a key building block for the synthesis of high-performance direct, reactive, and acid dyes, particularly for textile fibers like cotton, wool, and nylon.
• Functional Dye Manufacturing: Used in the production of specialized dyes for inkjet inks, leather coloring, and paper coloration due to its strong color strength and solubility.
• Research & Development: Employed in chemical R&D for developing novel chromophores, colorimetric sensors, and advanced organic materials.
• Analytical Reagents: Can be utilized as a staining agent or a complexometric indicator in specific analytical chemistry procedures.

Basic Information

Product Name	4-Amino-6-[[4'-[(8-Amino-1-Hydroxy-3,6-Disulfo-2-Naphtyl)Azo]-3,3'-Dimethyl-4-Biphenylyl]Azo]-5-Hydroxy-1,3-Naphthalenedisulfonic Acid Tetrasodium Salt
CAS No.	2150-53-0
Molecular Formula	C34H24N6O14S4 • 4Na
Molecular Weight	~994.86 g/mol (as tetrasodium salt)
Synonyms	Acid Black 210; C.I. 300310; Tetrasodium 4-amino-6-[[4'-[(8-amino-1-hydroxy-3,6-disulphonato-2-naphthyl)azo]-3,3'-dimethyl[1,1'-biphenyl]-4-yl]azo]-5-hydroxynaphthalene-1,3-disulphonate; 4-Amino-5-hydroxy-1,3-naphthalenedisulfonic acid, 6-[[4'-[(8-amino-1-hydroxy-3,6-disulfo-2-naphthalenyl)azo][1,1'-biphenyl]-4-yl]azo]-, tetrasodium salt; Azo dye intermediate 2150-53-0
EINECS	Contact for details

Quality Control

Our production of this advanced dye intermediate adheres to strict quality management protocols to ensure batch-to-batch consistency and high purity. Quality is verified through comprehensive analytical techniques including HPLC, UV-Vis spectroscopy, and titration methods. A detailed Certificate of Analysis (COA) specifying purity, identity, 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). This material is hygroscopic (moisture-sensitive); ensure the container is kept tightly sealed to prevent absorption of atmospheric moisture which may affect product stability and performance.

Specification

Item	Specification
Appearance	Dark brown to black powder or solid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0% (as is basis)
Water Content (KF)	≤ 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.