Description

Trisodium 5-[(7-Amino-1-Hydroxy-3-Sulphonato-2-Naphthyl)Azo]-8-[[4-(Phenylazo)-6-Sulphonatonaphthyl]Azo]Naphthalene-2-Sulphonate is a high-purity, water-soluble azo dye intermediate of significant commercial importance. This compound is valued for its role in synthesizing complex, high-performance dyes and pigments, particularly for demanding applications requiring specific color properties and stability. It is a critical raw material for manufacturers in the textile, ink, and specialty coatings industries seeking to produce vivid and durable colors.

Application

• Textile Dyeing: A key intermediate for the synthesis of reactive and direct dyes used for coloring cotton, wool, and nylon fibers.
• Ink Manufacturing: Used in the production of high-quality pigments for printing inks, including those for packaging and security applications.
• Specialty Coatings: Serves as a precursor for pigments in industrial paints and coatings requiring specific lightfastness and chemical resistance.
• Research & Development: Employed in chemical research for developing novel chromophores and studying azo dye chemistry and properties.
• Leather Coloring: An intermediate in the formulation of dyes for the leather tanning and finishing industry.
• Paper Coloring: Used in the synthesis of dyes for specialty paper products where color consistency is paramount.

Basic Information

Item	Details
Product Name	Trisodium 5-[(7-Amino-1-Hydroxy-3-Sulphonato-2-Naphthyl)Azo]-8-[[4-(Phenylazo)-6-Sulphonatonaphthyl]Azo]Naphthalene-2-Sulphonate
CAS No.	10482-42-5
Molecular Formula	C36H21N6Na3O13S3
Molecular Weight	918.80 g/mol
Synonyms	Acid Black 210; C.I. 300310; Trisodium 5-[(7-amino-1-hydroxy-3-sulphonato-2-naphthyl)azo]-8-[[4-(phenylazo)-6-sulphonato-1-naphthyl]azo]naphthalene-2-sulphonate; 5-[(7-Amino-1-hydroxy-3-sulfo-2-naphthyl)azo]-8-[[4-(phenylazo)-6-sulfo-1-naphthyl]azo]-2-naphthalenesulfonic acid trisodium salt; Acid Black 210, trisodium salt; C.I. Acid Black 210; Direct Black 210 (related class); Azo Dye Intermediate 10482-42-5
EINECS	Contact for details

Quality Control

Our Trisodium 5-[(7-Amino-1-Hydroxy-3-Sulphonato-2-Naphthyl)Azo]-8-[[4-(Phenylazo)-6-Sulphonatonaphthyl]Azo]Naphthalene-2-Sulphonate is produced under a stringent quality management system. Every batch undergoes rigorous analytical testing to ensure consistent purity, identity, and performance for your synthesis processes. Certificates of Analysis (COA) detailing key specifications such as assay, impurity profile, and physical properties are available upon request to support your quality assurance protocols.

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 product is hygroscopic (moisture-sensitive); the container must be kept tightly sealed to prevent absorption of atmospheric moisture, which can affect product quality and handling.

Specification

Item	Specification
Appearance	Dark brown to black powder or solid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Loss on Drying	≤ 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.