Description

Disodium 8-(Phenylamino)-5-[[4-(Phenylazo)-6-Sulphonato-1-Naphthyl]Azo]Naphthalene-1-Sulphonate is a high-purity, synthetic organic dye belonging to the azo class, specifically engineered for demanding industrial applications. Its value lies in its strong colorant properties and chemical stability, making it a critical component for manufacturers requiring consistent and reliable pigmentation. This product is essential for industries such as textile dyeing, ink formulation, and specialty coatings, where precise color quality and batch-to-batch uniformity are paramount for product performance.

Application

• Textile Dyeing: Primary application for dyeing natural and synthetic fibers, including cotton, wool, and polyamide, providing vibrant and wash-fast colors.
• Ink Manufacturing: Used as a key pigment in the production of printing inks for packaging, publications, and security printing.
• Industrial Coatings: Imparts color to paints, varnishes, and other surface coatings for plastics, metals, and wood.
• Paper Coloring: Applied in the surface treatment and mass coloration of specialty papers and cardboard.
• Leather Finishing: Employed in the dyeing process for leather goods to achieve consistent and durable coloration.
• Plastics and Polymers: Used for the mass coloration of various plastic resins and polymer materials.
• Biological Staining (Research Grade): Potential use as a histological stain in laboratory research settings, subject to specific purity grades.

Basic Information

Product Name	Disodium 8-(Phenylamino)-5-[[4-(Phenylazo)-6-Sulphonato-1-Naphthyl]Azo]Naphthalene-1-Sulphonate
CAS No.	68227-72-5
Molecular Formula	C32H21N5Na2O7S2
Molecular Weight	705.64 g/mol
Synonyms	Acid Black 210; C.I. 300310; Disodium 8-anilino-5-[[4-(phenylazo)-6-sulphonato-1-naphthyl]azo]naphthalene-1-sulphonate; 1-Naphthalenesulfonic acid, 8-(phenylamino)-5-[[4-(phenylazo)-6-sulfo-1-naphthalenyl]azo]-, disodium salt; Azo Black; Acid Dye Black 210; Leather Black 210; Textile Black 210
EINECS	Contact for details

Quality Control

Our Disodium 8-(Phenylamino)-5-[[4-(Phenylazo)-6-Sulphonato-1-Naphthyl]Azo]Naphthalene-1-Sulphonate is manufactured under a strict quality management system. Every batch undergoes rigorous analytical testing to ensure it meets precise specifications for color strength, purity, and solubility. Certificates of Analysis (COA) documenting key parameters 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 a controlled room temperature (15-25°C). Due to its hygroscopic nature, the container must be kept tightly sealed to prevent moisture absorption, which can affect product performance and handling. Keep away from incompatible materials.

Specification

Item	Specification
Appearance	Dark blue to black powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Color Strength	100 ± 5% (vs. Standard)
Moisture Content	≤ 5.0%
Water Solubility	Clear solution at 1%
Ash Content (Sulfated)	≤ 30.0%
Heavy Metals (as Pb)	≤ 20 ppm

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