Description

Disodium 8-Anilino-5-[[4-[(2-Chloro-5-Sulphonatophenyl)Azo]Naphthyl]Azo]Naphthalene-1-Sulphonate is a high-purity, water-soluble azo dye intermediate known for its excellent chromophore properties and stability. This compound is critical for synthesizing high-performance dyes and pigments that require superior color strength, lightfastness, and chemical resistance. It is primarily needed by manufacturers in the textile, ink, and specialty coatings industries seeking to produce vibrant, durable colors for demanding applications.

Application

• Textile Dyeing: A key intermediate for producing high-grade, wash-fast azo dyes for cotton, nylon, and polyester fibers.
• Ink Manufacturing: Used in the synthesis of pigments for industrial inks, including packaging, printing, and textile inks requiring vivid coloration.
• Specialty Coatings: Serves as a precursor for colorants in paints, lacquers, and polymer coatings where durability is essential.
• Plastics and Masterbatch: Employed in creating color concentrates for coloring plastics and synthetic materials.
• Research & Development: Used as a standard or reagent in chemical research focused on dye chemistry and material science.
• Leather Finishing: An intermediate for dyes used in the leather industry to achieve deep, uniform shades.

Basic Information

Product Name	Disodium 8-Anilino-5-[[4-[(2-Chloro-5-Sulphonatophenyl)Azo]Naphthyl]Azo]Naphthalene-1-Sulphonate
CAS No.	97889-95-7
Molecular Formula	C38H23ClN6Na2O7S2
Molecular Weight	829.18 g/mol
Synonyms	Acid Black 210; C.I. 300310; Disodium 8-anilino-1-naphthalenesulfonate-5-azo-4'-[(2-chloro-5-sulfophenyl)azo]naphthalene; 1-Naphthalenesulfonic acid, 8-(phenylamino)-5-[[4-[(2-chloro-5-sulfophenyl)azo]-1-naphthalenyl]azo]-, disodium salt; Azo Black 210; Dye Intermediate 97889-95-7; 2-Chloro-5-sulfo-4'-[(8-anilino-5-sulfo-1-naphthyl)azo]azobenzene disodium salt
EINECS	Contact for details

Quality Control

Our production of Disodium 8-Anilino-5-[[4-[(2-Chloro-5-Sulphonatophenyl)Azo]Naphthyl]Azo]Naphthalene-1-Sulphonate adheres to a stringent quality management system. Every batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation, to ensure consistent composition and performance. Certificates of Analysis (COA) detailing purity, impurity profile, and physical specifications 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). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed after opening to prevent absorption of atmospheric moisture.

Specification

Item	Specification
Appearance	Dark brown to black powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Water Content	≤ 5.0%
Sulfated Ash	≤ 20.0%
Heavy Metals (as Pb)	≤ 20 ppm
Solubility (in Water)	Clear solution

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