Description

8-(Phenylamino)-5-[[6-Sulfo-4-[(4-Sulfophenyl)Azo]-1-Naphthalenyl]Azo]-1-Naphthalenesulfonic Acid Trisodium Salt is a high-purity, water-soluble azo dye intermediate of significant commercial importance. This compound is valued for its role in synthesizing vibrant and stable colorants, particularly in applications requiring specific shades and fastness properties. It is primarily sought after by manufacturers in the textile, ink, and specialty dye industries for producing high-performance pigments and dyes.

Application

• Primary Intermediate for Azo Dyes & Pigments: Serves as a key building block in the synthesis of complex, high-value azo colorants for textiles and plastics.
• Textile Dyeing: Used in the production of dyes for coloring natural and synthetic fibers, offering good wash and light fastness.
• Ink Formulation: Employed in the manufacture of colorants for various printing inks, including those for packaging and publications.
• Leather Coloring: Acts as an intermediate for dyes used in the leather tanning and finishing industry.
• Paper Coloring: Utilized in the production of dyes for specialty paper and board products.
• Research & Development: Serves as a critical reagent in chemical research for developing new chromophores and functional materials.

Basic Information

Item	Details
Product Name	8-(Phenylamino)-5-[[6-Sulfo-4-[(4-Sulfophenyl)Azo]-1-Naphthalenyl]Azo]-1-Naphthalenesulfonic Acid Trisodium Salt
CAS No.	38125-00-7
Molecular Formula	C32H20N5Na3O9S3
Molecular Weight	791.68 g/mol
Synonyms	Acid Black 210; C.I. 300310; Trisodium 8-anilino-5-[4-(4-sulfonatophenyl)azo-6-sulfonato-1-naphthyl]azo]naphthalene-1-sulfonate; 1-Naphthalenesulfonic acid, 8-(phenylamino)-5-((6-sulfo-4-((4-sulfophenyl)azo)-1-naphthalenyl)azo)-, trisodium salt; Black 210; Azo Black 210; Dye Intermediate for Acid Black 210
EINECS	Contact for details

Quality Control

Our production of 8-(Phenylamino)-5-[[6-Sulfo-4-[(4-Sulfophenyl)Azo]-1-Naphthalenyl]Azo]-1-Naphthalenesulfonic Acid Trisodium Salt adheres to stringent quality management protocols. Every batch undergoes rigorous analytical testing to ensure consistent purity, color strength, and compositional integrity. Certificates of Analysis (COA) detailing key specifications are available upon request to support your quality assurance and regulatory compliance 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); the container must be kept tightly sealed to prevent absorption of atmospheric moisture, which can affect product quality and handling properties.

Specification

Item	Specification
Appearance	Dark powder or solid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Moisture (KF Titration)	≤ 5.0%
Water Solubility	Freely soluble
Heavy Metals (as Pb)	≤ 20 ppm

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