Description

(3E)-5-amino-3-[[4-[4-[(2E)-2-(8-amino-1-oxo-3,6-disulfo-naphthalen-2-ylidene)hydrazinyl]-3-chloro-phenyl]-2-chloro-phenyl]hydrazinylidene]-4-oxo-naphthalene-2,7-disulfonic acid is a high-purity, complex organic dye intermediate characterized by its multi-sulfonic acid and hydrazone functional groups. This compound is essential for synthesizing specialized dyes and pigments, offering exceptional color strength and stability in demanding formulations. It is primarily utilized by manufacturers in the textile, ink, and specialty chemical industries for producing high-performance colorants.

Application

• Production of Reactive and Direct Dyes: A key intermediate for synthesizing high-value dyes used in textile coloring, particularly for cotton and other cellulose fibers.
• Specialty Ink Manufacturing: Used in the formulation of inks requiring specific lightfastness and chemical resistance properties.
• Functional Pigment Synthesis: Serves as a precursor for creating pigments with enhanced thermal and UV stability for plastics and coatings.
• Analytical Chemistry Reagent: Can be employed as a complexometric agent or a chromogenic substrate in specific analytical and diagnostic applications.
• Research & Development: Used in academic and industrial R&D for developing novel chromophores and studying structure-property relationships in dye chemistry.

Basic Information

Item	Detail
Product Name	(3E)-5-amino-3-[[4-[4-[(2E)-2-(8-amino-1-oxo-3,6-disulfo-naphthalen-2-ylidene)hydrazinyl]-3-chloro-phenyl]-2-chloro-phenyl]hydrazinylidene]-4-oxo-naphthalene-2,7-disulfonic acid
CAS No.	3627-06-3
Molecular Formula	C32H20Cl2N6O11S4
Molecular Weight	875.68 g/mol
Synonyms	Acid Black 210; C.I. 300310; 2,7-Naphthalenedisulfonic acid, 5-amino-3-[[4-[4-[(2E)-2-(8-amino-1-oxo-3,6-disulfo-2-naphthalenylidene)hydrazinyl]-3-chlorophenyl]-2-chlorophenyl]hydrazinylidene]-4-oxo-; 5-Amino-3-{[4-(4-{(E)-[8-amino-1-oxo-3,6-disulfo-2(1H)-naphthylidene]hydrazino}-3-chlorophenyl)-2-chlorophenyl]hydrazono}-4-oxo-3,4-dihydronaphthalene-2,7-disulfonic acid; Reactive Black 5 related intermediate; Bis(azo) naphthalene derivative; Dye intermediate 3627-06-3
EINECS	Contact for details

Quality Control

Our production of (3E)-5-amino-3-[[4-[4-[(2E)-2-(8-amino-1-oxo-3,6-disulfo-naphthalen-2-ylidene)hydrazinyl]-3-chloro-phenyl]-2-chloro-phenyl]hydrazinylidene]-4-oxo-naphthalene-2,7-disulfonic acid adheres to rigorous quality testing protocols to ensure batch-to-batch consistency and compliance with customer specifications. Quality is verified through advanced analytical techniques including HPLC, UV-Vis, and elemental analysis. A comprehensive Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is provided with every shipment.

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 strong acids and organic solvents. The product is light-sensitive (store away from light).

Specification

Item	Specification
Appearance	Dark blue to black powder
Identification (IR)	Conforms to structure
Purity (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.