Description

3-[[4-[[6-[(4-Amino-3-Methylbenzoyl)Amino]-1-Hydroxy-3-Sodiosulfo-2-Naphthalenyl]Azo]-2-Methylphenyl]Azo]Naphthalene-1,5-Disulfonic Acid Disodium Salt is a high-purity, water-soluble azo dye intermediate of significant industrial importance. Its complex molecular structure provides excellent chromophoric properties, making it a critical precursor for synthesizing high-value dyes and pigments. This compound is essential for manufacturers in the textile, ink, and specialty chemical sectors seeking to produce vivid and stable colorants.

Application

• Primary Intermediate for Azo Dyes: Serves as a key building block in the synthesis of high-performance acid dyes and direct dyes for textiles, particularly for nylon, wool, and silk.
• Pigment Manufacturing: Used in the production of organic pigments for inks, coatings, and plastics, where color strength and lightfastness are required.
• Specialty Colorants: Employed in the formulation of specialized dyes for leather, paper, and food packaging inks.
• Research & Development: Utilized in chemical R&D for developing novel chromophores and studying azo coupling reactions.
• Analytical Reagents: Can be used as a standard or reagent in analytical chemistry for colorimetric detection methods.

Basic Information

Product Name	3-[[4-[[6-[(4-Amino-3-Methylbenzoyl)Amino]-1-Hydroxy-3-Sodiosulfo-2-Naphthalenyl]Azo]-2-Methylphenyl]Azo]Naphthalene-1,5-Disulfonic Acid Disodium Salt
CAS No.	5915-62-8
Molecular Formula	C35H26N6Na2O11S3
Molecular Weight	872.77 g/mol
Synonyms	Acid Black 210; C.I. 300310; Disodium 3-[[4-[[6-[(4-amino-3-methylbenzoyl)amino]-1-hydroxy-3-sulfo-2-naphthyl]azo]-2-methylphenyl]azo]naphthalene-1,5-disulfonate; 1,5-Naphthalenedisulfonic acid, 3-[[4-[[6-[(4-amino-3-methylbenzoyl)amino]-1-hydroxy-3-sulfo-2-naphthalenyl]azo]-2-methylphenyl]azo]-, disodium salt; C.I. Acid Black 210; Azo dye intermediate 5915-62-8; 3-[[4-[[6-[(4-Amino-3-methylbenzoyl)amino]-1-hydroxy-3-sulfo-2-naphthyl]azo]-o-tolyl]azo]naphthalene-1,5-disulfonic acid disodium salt
EINECS	227-647-7

Quality Control

Our production of 3-[[4-[[6-[(4-Amino-3-Methylbenzoyl)Amino]-1-Hydroxy-3-Sodiosulfo-2-Naphthalenyl]Azo]-2-Methylphenyl]Azo]Naphthalene-1,5-Disulfonic Acid Disodium Salt adheres to stringent quality management protocols. Every batch undergoes comprehensive analytical testing to ensure high purity, consistent chromophoric strength, and batch-to-batch reproducibility, meeting the exacting standards of the dye manufacturing industry. Certificates of Analysis (COA) detailing purity, assay, and impurity profiles are available upon request.

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) and light-sensitive; therefore, containers must be kept sealed to prevent absorption of atmospheric moisture and degradation from light exposure.

Specification

Item	Specification
Appearance	Dark brown to black powder or crystalline solid
Identification (IR)	Conforms to structure
Assay (HPLC)	Min. 95%
Purity (HPLC Area %)	Min. 98.0%
Water Content (KF)	Max. 5.0%
Sulfated Ash	Max. 20.0%
Heavy Metals (as Pb)	Max. 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.