Description

4-Amino-3-[[4-[5-[(2,4-Diamino-5-Methylphenyl)Azo]-1H-Benzimidazol-2-Yl]Phenyl]Azo]-5-Hydroxy-6-(Phenylazo)-2,7-Naphthalenedisulfonic Acid is a complex, high-purity azo dye intermediate characterized by its multi-azo and benzimidazole structure. This compound matters for its role as a critical precursor in synthesizing specialized, high-performance dyes and pigments, offering excellent color fastness and thermal stability. It is primarily needed by manufacturers in the textile, ink, and specialty coatings industries seeking to produce vibrant, durable colors.

Application

• Textile Dyeing: As a key intermediate for producing high-grade, wash-fast azo dyes for synthetic fibers like polyester and nylon.
• Ink Manufacturing: Used in the synthesis of pigments for industrial inks, including those for packaging and printing.
• Specialty Coatings: Serves as a precursor for pigments used in automotive, industrial, and decorative coatings requiring UV and chemical resistance.
• Research & Development: Employed in chemical research for developing novel chromophores and studying azo dye chemistry.
• Functional Materials: Potential intermediate in the development of dyes for optical data storage or non-linear optical materials.

Basic Information

Product Name	4-Amino-3-[[4-[5-[(2,4-Diamino-5-Methylphenyl)Azo]-1H-Benzimidazol-2-Yl]Phenyl]Azo]-5-Hydroxy-6-(Phenylazo)-2,7-Naphthalenedisulfonic Acid
CAS No.	68957-65-3
Molecular Formula	C36H28N12O7S2
Molecular Weight	804.81 g/mol
Synonyms	Acid Black 210; C.I. 300310; 2,7-Naphthalenedisulfonic acid, 4-amino-3-((4-((5-((2,4-diamino-5-methylphenyl)azo)-1H-benzimidazol-2-yl)phenyl)azo)-5-hydroxy-6-(phenylazo)-; Benzimidazole Azo Dye Intermediate; Black 210 Dye Intermediate; Azo Benzimidazole Dye; 4-Amino-3,6-bis(arylazo)-5-hydroxy-2,7-naphthalenedisulfonic acid derivative
EINECS	Contact for details

Quality Control

Our production of this dye intermediate adheres to strict quality control protocols to ensure batch-to-batch consistency and high purity. Quality is verified through advanced analytical techniques including HPLC and spectrophotometry. A comprehensive Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is provided with every shipment to support your quality assurance processes.

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.

Specification

Item	Specification
Appearance	Dark brown to black powder or solid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Loss on Drying	≤ 5.0%
Sulfated Ash	≤ 1.0%
Heavy Metals (as Pb)	≤ 20 ppm

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