Description

6'-Amino-1'-Hydroxy-4-[[4-[(3-Sodiosulfophenyl)Azo]-1-Naphthalenyl]Azo][1,2'-Azobisnaphthalene]-3',6-Disulfonic Acid Disodium Salt is a high-purity, water-soluble azo dye intermediate of significant commercial importance. Its complex polyazo structure is engineered to deliver exceptional color strength and thermal stability, making it a critical precursor for high-performance pigments and dyes. This compound is primarily sought by manufacturers in the textile, ink, and specialty coatings industries for producing vivid, durable colors.

Application

• Textile Dyeing: As a key intermediate for synthesizing reactive and direct dyes for cotton, wool, and nylon fibers.
• Ink Manufacturing: Used in the production of high-quality printing inks, including those for packaging and security applications.
• Pigment Synthesis: Serves as a crucial building block for creating organic pigments with enhanced lightfastness and weather resistance.
• Leather Coloring: Employed in the formulation of dyes for the leather tanning and finishing industry.
• Paper Coloring: Used in the manufacture of dyes for specialty and decorative papers.
• Research & Development: Acts as a standard or reagent in chemical research for developing new chromophores and studying azo chemistry.

Basic Information

Product Name	6'-Amino-1'-Hydroxy-4-[[4-[(3-Sodiosulfophenyl)Azo]-1-Naphthalenyl]Azo][1,2'-Azobisnaphthalene]-3',6-Disulfonic Acid Disodium Salt
CAS No.	15792-47-9
Molecular Formula	C32H19N7Na2O10S3
Molecular Weight	819.70 g/mol
Synonyms	Acid Black 210; C.I. 300310; Disodium 6'-amino-1'-hydroxy-4-[[4-[(3-sulfonatophenyl)azo]-1-naphthyl]azo][1,2'-azobisnaphthalene]-3',6-disulfonate; 1,2'-Azobis[6-amino-5-hydroxy-3,8-disulfonaphthalene], diazotized, coupled with diazotized 3-aminobenzenesulfonic acid; Benzenesulfonic acid, 3-[[4-[(7-amino-1-hydroxy-3,6-disulfo-2-naphthalenyl)azo]-1-naphthalenyl]azo]-, disodium salt
EINECS	Contact for details

Quality Control

Our production of this azo dye intermediate adheres to stringent quality management systems to ensure batch-to-batch consistency and purity. Every lot is analyzed using advanced techniques like HPLC and spectrophotometry to verify critical parameters including assay, impurity profile, and color value. A comprehensive Certificate of Analysis (COA) detailing all test results is provided with each shipment to support your quality assurance protocols.

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 to prevent absorption of atmospheric moisture, which can affect product 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
Sulfated Ash	≤ 20.0%
Heavy Metals (as Pb)	≤ 20 ppm

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