Description

2,7-Naphthalenedisulfonic Acid, 5-Dihydroxy(2-Hydroxynitrosulfophenyl)Azophenylazo-4-Hydroxy-3-(4-Nitrophenyl)Azo-, Trisodium Salt is a high-purity, synthetic organic dye intermediate and specialty chemical. This compound is valued for its complex azo and naphthalene disulfonic acid structure, which provides excellent chromophoric properties and water solubility. It is primarily utilized in the production of advanced dyes and pigments for textiles, inks, and specialized analytical reagents.

Application

• Dye and Pigment Manufacturing: A key intermediate for synthesizing high-value, water-soluble azo dyes used in textile coloring.
• Ink Formulation: Used in the production of specialized inks, including those for security printing and high-performance markers.
• Analytical Chemistry: Serves as a chromogenic agent or complexometric indicator in specific laboratory assays and titration methods.
• Research & Development: Employed in chemical research for developing new colored materials and studying azo dye chemistry.
• Specialty Coatings: Potential use in formulating functional coatings where specific colorimetric properties are required.

Basic Information

Product Name	2,7-Naphthalenedisulfonic Acid, 5-Dihydroxy(2-Hydroxynitrosulfophenyl)Azophenylazo-4-Hydroxy-3-(4-Nitrophenyl)Azo-, Trisodium Salt
CAS No.	114599-15-4
Molecular Formula	C34H19N7Na3O16S3 (Tentative, contact for details)
Molecular Weight	Contact for details
Synonyms	Trisodium 5-hydroxy-3-[(E)-(4-nitrophenyl)diazenyl]-4-[(E)-2-[4-[(E)-(2-hydroxy-5-sulfonatophenyl)diazenyl]-2-hydroxyphenyl]diazenyl]-6,8-disulfonatonaphthalene-2-olate; CI 27290; Acid Black 210; Azo Black Dye Intermediate; 2,7-Naphthalenedisulfonic acid, azo dye derivative trisodium salt; 5-Hydroxy-3-[(4-nitrophenyl)azo]-4-[[4-[(2-hydroxy-5-sulfophenyl)azo]-2-hydroxyphenyl]azo]-, trisodium salt
EINECS	Contact for details

Quality Control

Our production of this specialty dye intermediate adheres to strict quality management protocols. Every batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation, to ensure consistency and meet precise customer specifications. A Certificate of Analysis (COA) detailing batch-specific results is provided with each shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). This material is hygroscopic (moisture-sensitive); keep the container tightly sealed to prevent absorption of atmospheric moisture.

Specification

Item	Specification
Appearance	Dark colored powder or solid
Identification (IR)	Conforms to structure
Assay (HPLC)	Min. 95% (or as per customer grade)
Loss on Drying	Max. 5.0%
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.