Description

Disodium 8-[(4-Methylphenyl)Amino]-5-[[4-[(6-Sulphonato-1-Naphthyl)Azo]-1-Naphthyl]Azo]Naphthalene-1-Sulphonate is a high-purity, water-soluble azo dye intermediate of significant commercial importance. This compound is valued for its ability to impart vibrant and stable coloration, making it a critical component in the synthesis of specialized dyes and pigments. It is primarily required by manufacturers in the textile, ink, and specialty coatings industries seeking consistent quality and reliable performance in their formulations.

Application

• Textile Dyeing: As a key intermediate for producing high-grade, wash-fast azo dyes for synthetic and natural fibers.
• Ink Manufacturing: Used in the synthesis of pigments for industrial printing inks, including packaging and security inks.
• Specialty Coatings: Serves as a precursor for colorants in coatings requiring specific lightfastness and chemical resistance.
• Paper Coloring: Employed in the production of dyes for high-quality paper and decorative laminates.
• Leather Finishing: Utilized in dye formulations for achieving deep, uniform colors on leather goods.
• Plastic Masterbatch: Acts as an intermediate for colorants used in coloring plastics and polymers.
• Research & Development: Serves as a standard or reagent in chemical research for developing new chromophores and functional materials.

Basic Information

Product Name	Disodium 8-[(4-Methylphenyl)Amino]-5-[[4-[(6-Sulphonato-1-Naphthyl)Azo]-1-Naphthyl]Azo]Naphthalene-1-Sulphonate
CAS No.	84255-10-7
Molecular Formula	C43H28N6Na2O7S2
Molecular Weight	858.81 g/mol
Synonyms	Disodium 8-[(4-Methylphenyl)amino]-5-{[4-[(6-sulfo-1-naphthyl)azo]-1-naphthyl]azo}naphthalene-1-sulfonate; C.I. Acid Black 210; Acid Black 210; Azo Black 210; Black 210; Disodium 1-amino-4-[[4-[(2,4-dimethyl-6-sulfophenyl)azo]phenyl]amino]-9,10-dihydro-9,10-dioxoanthracene-2-sulfonate (related structure); Azo dye intermediate for black shades; Sulphonated azo dye intermediate.
EINECS	Contact for details

Quality Control

Our Disodium 8-[(4-Methylphenyl)Amino]-5-[[4-[(6-Sulphonato-1-Naphthyl)Azo]-1-Naphthyl]Azo]Naphthalene-1-Sulphonate is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation, to ensure it meets precise specifications for dye intermediate applications. Certificates of Analysis (COA) documenting purity, impurity profile, and physical characteristics 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 a controlled room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept sealed to prevent absorption of atmospheric moisture, which can affect product performance.

Specification

Item	Specification
Appearance	Dark blue to black powder or granules
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Moisture Content	≤ 5.0%
Water Solubility	Freely soluble
Heavy Metals (as Pb)	≤ 20 ppm
pH (1% Solution)	6.0 - 8.0

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