Description

2,7-Naphthalenedisulfonic Acid,4-Amino-6-[[4-[[[4-[(2,4-Dihydroxyphenyl)Azo]Phenyl]Amino] Sulfonyl]Phenyl]Azo]-5-Hydroxy-3-[(4-Nitrophenyl)Azo]-,Dilithium Salt is a complex, high-purity azo dye intermediate and specialty chemical. This compound is valued for its precise chromophoric structure, which is critical for producing vivid and stable colorants. It is primarily required by manufacturers in the dyes and pigments, textile, and specialty chemical synthesis industries seeking consistent performance in advanced coloring applications.

Application

• Primary Intermediate for Azo Dyes: Serves as a key building block in the synthesis of high-performance, polyazo dyes for textiles and leather.
• Specialty Pigment Manufacturing: Used in the production of complex organic pigments requiring specific shade and fastness properties.
• Functional Dye Synthesis: Potential precursor for dyes used in non-textile applications such as inks, coatings, and plastics.
• Research & Development: Employed in chemical R&D for developing new chromophores and studying structure-property relationships in color chemistry.
• Analytical Chemistry: May be used as a standard or reagent in specific colorimetric analytical methods.

Basic Information

Item	Detail
Product Name	2,7-Naphthalenedisulfonic Acid,4-Amino-6-[[4-[[[4-[(2,4-Dihydroxyphenyl)Azo]Phenyl]Amino] Sulfonyl]Phenyl]Azo]-5-Hydroxy-3-[(4-Nitrophenyl)Azo]-,Dilithium Salt
CAS No.	95727-47-2
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	C.I. Acid Black 210; Dilithium 4-amino-6-[[4-[[[4-[(2,4-dihydroxyphenyl)azo]phenyl]amino]sulfonyl]phenyl]azo]-5-hydroxy-3-[(4-nitrophenyl)azo]-2,7-naphthalenedisulfonate; Acid Black 210; Black 210; C.I. 300310; 4-Amino-6-({4-[(4-{[(4-{2,4-dihydroxyphenyl)diazenyl]phenyl}amino)sulfonyl]phenyl}diazenyl)-5-hydroxy-3-[(4-nitrophenyl)diazenyl]naphthalene-2,7-disulfonic acid dilithium salt
EINECS	Contact for details

Quality Control

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

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed after opening to prevent degradation from atmospheric moisture.

Specification

Item	Specification
Appearance	Dark colored powder or solid
Identification (IR)	Conforms to structure
Assay (HPLC)	Min. 95%
Loss on Drying	Max. 5.0%
Heavy Metals	Max. 20 ppm
Related Substances (HPLC)	Individual impurity: Max. 1.0% Total impurities: Max. 5.0%

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