Description

8-[(7-Amino-1-Hydroxy-3-Sulpho-2-Naphthyl)Azo]-5-[[4-(Phenylazo)-6-Sulpho-1-Naphthyl]Azo]Naphthalene-2-Sulphonic Acid, Sodium Salt is a high-purity, polyazo naphthalene sulfonate dye intermediate. This compound is valued for its ability to impart strong, vibrant color properties in advanced dye synthesis. It is primarily required by manufacturers in the textile, ink, and specialty pigment industries for producing high-performance dyes and colorants.

Application

• Primary Intermediate for Azo Dyes: A key building block in the synthesis of high-grade, complex azo dyes for textiles and fabrics.
• Specialty Ink Production: Used in formulating inks for high-resolution printing, packaging, and security applications.
• Industrial Pigment Manufacturing: Serves as a precursor for creating organic pigments with excellent color strength and stability.
• Research & Development: Employed in chemical R&D for developing novel chromophores and functional dyes.
• Leather Dyeing: Used in the production of dyes for coloring leather goods with deep, lasting shades.
• Paper Coloring: Applicable in the manufacture of dyes for high-quality paper and specialty paper products.

Basic Information

Product Name	8-[(7-Amino-1-Hydroxy-3-Sulpho-2-Naphthyl)Azo]-5-[[4-(Phenylazo)-6-Sulpho-1-Naphthyl]Azo]Naphthalene-2-Sulphonic Acid, Sodium Salt
CAS No.	85283-64-3
Molecular Formula	C36H22N6Na3O12S3
Molecular Weight	936.81 g/mol
Synonyms	Acid Black 210; C.I. 300317; Sodium 8-[(7-amino-1-hydroxy-3-sulfo-2-naphthyl)azo]-5-[(4-(phenylazo)-6-sulfo-1-naphthyl)azo]naphthalene-2-sulfonate; 8-[(7-Amino-1-hydroxy-3-sulfo-2-naphthyl)azo]-5-[[4-(phenylazo)-6-sulfo-1-naphthyl]azo]naphthalene-2-sulfonic acid trisodium salt; Trisodium 5-[[4-(phenylazo)-6-sulfo-1-naphthyl]azo]-8-[(7-amino-1-hydroxy-3-sulfo-2-naphthyl)azo]naphthalene-2-sulfonate; Azo dye intermediate 85283-64-3; Polyazo naphthalene sulfonate
EINECS	Contact for details

Quality Control

Our production of this dye intermediate adheres to stringent quality control protocols to ensure batch-to-batch consistency and high chemical purity. Quality is verified through advanced analytical techniques including HPLC and spectrophotometry. A Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is provided with every shipment to support your quality assurance processes.

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 nature, the container must be kept tightly sealed to prevent moisture absorption, which can affect product stability and performance.

Specification

Item	Specification
Appearance	Dark brown to black powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Moisture Content	≤ 5.0%
Sulfated Ash	≤ 20.0%
Heavy Metals (as Pb)	≤ 20 ppm
Solubility (in Water)	Clear solution

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