Description

Pentasodium 4-[[4-[(3,6-Disulphonato-1-Naphthyl)Azo]-6-Sulphonato-1-Naphthyl]Azo]-3-Hydroxynaphthalene-2,7-Disulphonate is a high-purity, water-soluble azo dye intermediate known for its excellent chromophore properties and stability. This compound is critical for producing vibrant and durable dyes and pigments, particularly in applications requiring strong color fastness and chemical resistance. It is primarily sought by manufacturers in the textile, ink, and specialty chemical industries for synthesizing high-performance colorants.

Application

• Textile Dyeing: As a key intermediate for producing reactive and direct dyes for cotton, wool, and synthetic fibers.
• Ink Manufacturing: Used in the synthesis of pigments for high-quality printing inks, including packaging and security inks.
• Leather Coloring: Employed in the production of dyes for achieving consistent and deep coloration on leather goods.
• Paper Industry: Acts as a colorant intermediate for specialty papers and decorative laminates.
• Biological Staining: Potential use as an intermediate for histochemical stains and indicators in laboratory settings.
• Research & Development: Serves as a standard or building block in organic synthesis and color chemistry R&D.

Basic Information

Product Name	Pentasodium 4-[[4-[(3,6-Disulphonato-1-Naphthyl)Azo]-6-Sulphonato-1-Naphthyl]Azo]-3-Hydroxynaphthalene-2,7-Disulphonate
CAS No.	13083-09-5
Molecular Formula	C30H13N4Na5O19S5
Molecular Weight	Approx. 1010.8 g/mol
Synonyms	Acid Black 210; C.I. 300310; 4-[[4-[(3,6-Disulfo-1-naphthyl)azo]-6-sulfo-1-naphthyl]azo]-3-hydroxy-2,7-naphthalenedisulfonic acid, pentasodium salt; Pentasodium 4-[[4-[(3,6-disulfonato-1-naphthyl)azo]-6-sulfonato-1-naphthyl]azo]-3-hydroxynaphthalene-2,7-disulfonate; 1-Naphthalenesulfonic acid, 4-[[4-[(3,6-disulfo-1-naphthyl)azo]-6-sulfo-1-naphthyl]azo]-3-hydroxy-2,7-disulfo-, sodium salt (1:5); Black 210; Acid Black 210, sodium salt
EINECS	Contact for details

Quality Control

Our production of Pentasodium 4-[[4-[(3,6-Disulphonato-1-Naphthyl)Azo]-6-Sulphonato-1-Naphthyl]Azo]-3-Hydroxynaphthalene-2,7-Disulphonate adheres to stringent quality management protocols. Each batch undergoes comprehensive analytical testing, including HPLC for purity and spectrophotometry for color strength, to ensure consistency and compliance with customer specifications. Certificates of Analysis (COA) detailing all test results are 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 oxidizing agents. The product is hygroscopic (moisture-sensitive); ensure containers are sealed after each use to prevent moisture absorption.

Specification

Item	Specification
Appearance	Dark brown to black powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Color Strength	100 ± 5% (vs. Standard)
Moisture Content	≤ 5.0%
Water Solubility	Completely soluble
Ash Content (Sulfated)	≤ 30.0%
Heavy Metals (as Pb)	≤ 20 ppm

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