Description

4-Amino-5-Hydroxy-3-[[4-[5-[(4-Hydroxyphenyl)Azo]-1H-Benzimidazol-2-Yl]Phenyl]Azo]-6-(Phenylazo)Naphthalene-2,7-Disulphonic Acid is a high-purity, complex azo dye intermediate characterized by its multiple azo and sulphonic acid groups. This compound matters for its role in synthesizing specialized dyes and pigments, offering excellent color fastness and solubility properties. It is primarily needed by manufacturers in the textile, ink, and specialty chemical industries for producing high-performance colorants.

Application

• Textile Dyeing: As a key intermediate for synthesizing reactive and direct dyes for cotton, wool, and synthetic fibers.
• Ink Manufacturing: Used in the production of high-quality printing inks, including those for packaging and security applications.
• Pigment Synthesis: Serves as a precursor for creating organic pigments with enhanced thermal and light stability.
• Research & Development: Employed in chemical research for developing novel chromophores and functional dyes.
• Analytical Reagents: Potential use as a staining agent or indicator in specific analytical chemistry protocols.
• Specialty Coatings: Intermediate for dyes used in coatings requiring specific color properties and durability.

Basic Information

Product Name	4-Amino-5-Hydroxy-3-[[4-[5-[(4-Hydroxyphenyl)Azo]-1H-Benzimidazol-2-Yl]Phenyl]Azo]-6-(Phenylazo)Naphthalene-2,7-Disulphonic Acid
CAS No.	67846-55-3
Molecular Formula	C41H28N10O8S2
Molecular Weight	853.85 g/mol
Synonyms	Acid Black 210; C.I. 300310; 2,7-Naphthalenedisulfonic acid, 4-amino-5-hydroxy-3-((4-((5-((4-hydroxyphenyl)azo)-1H-benzimidazol-2-yl)phenyl)azo)-6-(phenylazo)-; Benzimidazole azo dye intermediate; Tetrakis azo dye intermediate; Azo Benzimidazole Dye; 67846-55-3 (CAS)
EINECS	Contact for details

Quality Control

Our 4-Amino-5-Hydroxy-3-[[4-[5-[(4-Hydroxyphenyl)Azo]-1H-Benzimidazol-2-Yl]Phenyl]Azo]-6-(Phenylazo)Naphthalene-2,7-Disulphonic Acid is produced under a strict quality management system. Each batch undergoes rigorous analytical testing to ensure identity, purity, and consistency. Certificates of Analysis (COA) detailing specific results for assay, impurities, and other critical parameters 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). Keep away from incompatible materials. Due to its light-sensitive nature, containers should be opaque or stored in darkness.

Specification

Item	Specification
Appearance	Dark powder or solid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Loss on Drying	≤ 2.0%
Sulfated Ash	≤ 1.0%
Heavy Metals (as Pb)	≤ 20 ppm
Related Substances (HPLC)	Individual impurity ≤ 1.0%

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