Description

Disodium 7,7'-Iminobis[3-[[4-(Acetylamino)Phenyl]Azo]-4-Hydroxynaphthalene-2-Sulphonate] is a high-purity, synthetic organic compound belonging to the azo dye class, valued for its specific chromophoric properties and chemical stability. This product is engineered for applications requiring precise color characteristics and consistent performance in demanding industrial environments. It is primarily utilized by manufacturers in the textile, specialty ink, and advanced materials sectors where reliable dye intermediates are critical.

Application

• Textile Dyeing Intermediate: A key precursor for synthesizing specific azo dyes used in coloring natural and synthetic fibers.
• Specialty Ink Formulation: Used in the production of high-performance inks for industrial printing and coding applications.
• Functional Pigment Synthesis: Serves as a building block for creating complex organic pigments with tailored properties.
• Research & Development: Employed in chemical research for developing new chromophores and studying azo compound chemistry.
• Analytical Reagent: Potential use as a colorimetric indicator or reagent in specific analytical chemistry methods.

Basic Information

Product Name	Disodium 7,7'-Iminobis[3-[[4-(Acetylamino)Phenyl]Azo]-4-Hydroxynaphthalene-2-Sulphonate]
CAS No.	94944-84-0
Molecular Formula	C40H28N8Na2O10S2
Molecular Weight	882.79 g/mol
Synonyms	Acid Black 210; C.I. 300310; Disodium 7,7'-(iminobis(4,1-phenylenecarbonylimino(1-hydroxy-6-sulphonato-2-naphthalene)-3,1-diyl))bis(diazene); 7,7'-Iminobis[4-hydroxy-3-[(4-(acetylamino)phenyl)azo]-2-naphthalenesulfonic acid] disodium salt; Azo Dye Intermediate 94944-84-0; Disodium 7,7'-iminobis(3-((4-acetamidophenyl)azo)-4-hydroxy-2-naphthalenesulfonate); Direct Black 210 (related class)
EINECS	Contact for details

Quality Control

Our production of Disodium 7,7'-Iminobis[3-[[4-(Acetylamino)Phenyl]Azo]-4-Hydroxynaphthalene-2-Sulphonate] adheres to stringent quality management protocols. Every batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation, to ensure consistency and compliance with customer specifications. A comprehensive Certificate of Analysis (COA) detailing purity, assay, and impurity profiles is provided with each shipment to guarantee traceability and quality assurance.

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). This material is hygroscopic (moisture-sensitive) and light-sensitive; therefore, containers must be kept tightly sealed when not in use to prevent degradation from moisture absorption and light exposure.

Specification

Item	Specification
Appearance	Dark brown to black powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Loss on Drying	≤ 5.0%
Sulfated Ash	≤ 20.0%
Heavy Metals (as Pb)	≤ 20 ppm
Solubility (1% in Water)	Complete, clear solution

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