Description

4-Amino-5-Hydroxy-3-[[4'-[[2-Hydroxy-4-[(o-Tolyl)Amino]Phenyl]Azo][1,1'-Biphenyl]-4-Yl]Azo]-6-(Phenylazo)Naphthalene-2,7-Disulphonic Acid, Sodium Salt is a high-purity, complex azo dye intermediate essential for producing vibrant and stable colorants. This compound is valued for its ability to impart specific hue and performance characteristics in demanding applications, ensuring batch-to-batch consistency and reliability. It is primarily required by manufacturers in the textile, ink, and specialty pigment industries seeking advanced chromophores for high-performance products.

Application

• Textile Dyeing: A key intermediate for synthesizing high-grade, wash-fast azo dyes for natural and synthetic fibers.
• Ink Formulation: Used in the production of pigments for industrial printing inks, including packaging and security inks.
• Specialty Pigments: Serves as a precursor for creating complex organic pigments used in plastics, coatings, and automotive finishes.
• Research & Development: Employed in chemical research for developing novel colorants and studying azo dye chemistry.
• Functional Dyes: Potential use in the synthesis of dyes for non-textile applications, such as in optical data storage or liquid crystal displays (LCDs).

Basic Information

Item	Details
Product Name	4-Amino-5-Hydroxy-3-[[4'-[[2-Hydroxy-4-[(o-Tolyl)Amino]Phenyl]Azo][1,1'-Biphenyl]-4-Yl]Azo]-6-(Phenylazo)Naphthalene-2,7-Disulphonic Acid, Sodium Salt
CAS No.	85750-00-1
Molecular Formula	C46H32N8O8S2•2Na
Molecular Weight	~950.90 g/mol (Disodium Salt)
Synonyms	Acid Black 210; C.I. 300310; Sodium 4-amino-5-hydroxy-3-[[4'-[[2-hydroxy-4-[(2-methylphenyl)amino]phenyl]azo][1,1'-biphenyl]-4-yl]azo]-6-(phenylazo)naphthalene-2,7-disulphonate; 2,7-Naphthalenedisulfonic acid, 4-amino-5-hydroxy-3-((4'-((2-hydroxy-4-((2-methylphenyl)amino)phenyl)azo)(1,1'-biphenyl)-4-yl)azo)-6-(phenylazo)-, disodium salt; Azo Dye Intermediate 85750-00-1
EINECS	Contact for details

Quality Control

Our production of this azo dye intermediate adheres to strict quality control protocols to ensure high purity and consistent performance. Every batch is analyzed using advanced techniques like HPLC to verify the assay and impurity profile. A comprehensive Certificate of Analysis (COA) detailing purity, identity, and physical specifications is provided with each shipment to support your quality assurance processes.

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 colored powder or solid
Identification (IR)	Conforms to structure
Assay (HPLC)	Min. 95%
Loss on Drying	Max. 5.0%
Sulfated Ash	Contact for details
Heavy Metals (as Pb)	Max. 20 ppm

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