Description

Benzoic acid, 2-[[1-amino-7-[[4-[[6-amino-5-[(3-carboxy-4-hydroxyphenyl)azo]-1-hydroxy-3-sulfo-2-naphthalenyl]azo]-2-methoxyphenyl]azo]-8-hydroxy-3,6-disulfo-2-naphthalenyl]azo]-5-[[6-amino-5-[(3-carboxy-4-hydroxyphenyl)azo]-1-hydroxy-3-sul is a complex, high-molecular-weight azo dye intermediate. This compound is engineered for exceptional color strength and specific affinity to substrates like polyamide and protein fibers. It is primarily sought by manufacturers in the textile dyeing and specialty ink industries who require precise, vibrant, and durable coloration. Its multi-sulfonated structure ensures good water solubility and dyeing properties.

Application

• Textile Dyeing: As a key intermediate for synthesizing high-performance dyes for nylon, wool, and silk.
• Leather Coloring: Used in the formulation of dyes for high-quality leather goods.
• Ink Manufacturing: A critical component in producing specialty inks for jet printing and security applications.
• Paper Dyeing: Employed in the production of colored papers requiring specific hue and lightfastness.
• Research & Development: Serves as a reference standard and building block in organic synthesis for novel chromophores.
• Biological Staining: Potential use as a specialized stain in histological applications due to its affinity for proteins.

Basic Information

Item	Detail
Product Name	Benzoic acid, 2-[[1-amino-7-[[4-[[6-amino-5-[(3-carboxy-4-hydroxyphenyl)azo]-1-hydroxy-3-sulfo-2-naphthalenyl]azo]-2-methoxyphenyl]azo]-8-hydroxy-3,6-disulfo-2-naphthalenyl]azo]-5-[[6-amino-5-[(3-carboxy-4-hydroxyphenyl)azo]-1-hydroxy-3-sul
CAS No.	16894-32-9
Molecular Formula	C58H38N14O22S4
Molecular Weight	~1411.23 g/mol (Contact for exact details)
Synonyms	Acid Black 210; C.I. 300317; 2-[[1-Amino-7-[[4-[[6-amino-5-[(3-carboxy-4-hydroxyphenyl)azo]-1-hydroxy-3-sulfo-2-naphthalenyl]azo]-2-methoxyphenyl]azo]-8-hydroxy-3,6-disulfo-2-naphthalenyl]azo]-5-[[6-amino-5-[(3-carboxy-4-hydroxyphenyl)azo]-1-hydroxy-3-sulfo-2-naphthalenyl]azo]benzoic acid; Benzoic acid, 2,2'-(7,7'-iminobis(4-hydroxy-3-sulfo-2-naphthalenylazo))bis(5-((3-carboxy-4-hydroxyphenyl)azo))-; Azo dye intermediate for Acid Black 210
EINECS	Contact for details

Quality Control

Our production of this advanced dye intermediate adheres to strict quality management protocols to ensure batch-to-batch consistency and purity. Each lot undergoes comprehensive analysis including HPLC for purity and identity confirmation, as well as tests for residual solvents and inorganic salts. A Certificate of Analysis (COA) detailing all specifications is provided with every shipment 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). Due to its hygroscopic nature, the container must be kept tightly sealed to prevent moisture absorption, which can affect product performance. Keep away from incompatible materials.

Specification

Item	Specification
Appearance	Dark blue to black powder or solid
Identification (IR)	Conforms to structure
Purity (HPLC)	Min. 95%
Moisture Content	Max. 5.0%
Ash Content (Sulfated)	Max. 1.0%
Water Solubility	Freely soluble
Heavy Metals (as Pb)	Max. 20 ppm

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