Description

4'-Amino-4-[(3-Sodiosulfophenyl)Azo][1,1'-Azobisnaphthalene]-7-Sulfonic Acid Sodium Salt is a high-purity, water-soluble azo dye intermediate of significant commercial importance. This compound is valued for its ability to impart vivid and stable color properties in demanding industrial applications. It is primarily sought after by manufacturers in the textile, ink, and specialty chemical sectors for the synthesis of high-performance dyes and pigments.

Application

• Primary Intermediate for Azo Dyes: A key building block in the synthesis of acid, direct, and reactive dyes, particularly for textiles like wool, silk, and nylon.
• Textile Dyeing and Printing: Used to produce dyes that offer excellent wash and light fastness on various fabric substrates.
• Ink Manufacturing: Serves as a crucial component in the formulation of inks for packaging, publishing, and specialty printing.
• Paper Coloring: Employed in the production of dyes for coloring paper and paperboard products.
• Leather Dyeing: Utilized in the creation of dyes for achieving deep, uniform colors on leather goods.
• Biological Staining: Potential use as a staining agent in histology and microscopy due to its chromophoric structure.
• Research & Development: Serves as a standard or reagent in chemical research focused on dye chemistry and photophysical properties.

Basic Information

Product Name	4'-Amino-4-[(3-Sodiosulfophenyl)Azo][1,1'-Azobisnaphthalene]-7-Sulfonic Acid Sodium Salt
CAS No.	6527-59-9
Molecular Formula	C32H20N6Na2O7S2
Molecular Weight	726.70 g/mol
Synonyms	Acid Black 210; C.I. 300310; 4-Amino-3-[[4-[(2-hydroxy-1-naphthalenyl)azo]-1-naphthalenyl]azo]-5-hydroxy-2,7-naphthalenedisulfonic Acid Disodium Salt; 1-Naphthalenesulfonic acid, 4-amino-3-[[4-[(2-hydroxy-1-naphthalenyl)azo]-1-naphthalenyl]azo]-5-hydroxy-2,7-naphthalenedisulfonic acid disodium salt; Disodium 4-amino-3-{[4-[(2-hydroxynaphthalen-1-yl)diazenyl]naphthalen-1-yl]diazenyl}-5-hydroxynaphthalene-2,7-disulfonate
EINECS	229-428-4

Quality Control

Our production of 4'-Amino-4-[(3-Sodiosulfophenyl)Azo][1,1'-Azobisnaphthalene]-7-Sulfonic Acid Sodium Salt adheres to stringent quality management protocols. Every batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation, to ensure it meets precise customer specifications and industry benchmarks. A Certificate of Analysis (COA) detailing all relevant parameters is provided with each shipment to guarantee traceability and compliance.

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). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed to prevent absorption of atmospheric moisture, which can affect product quality and performance.

Specification

Item	Specification
Appearance	Dark brown to black powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Moisture Content	≤ 5.0%
Water Solubility	Freely soluble
Heavy Metals (as Pb)	≤ 20 ppm
Sulfated Ash	Contact for details

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