Description

Disodium 2'-[4-[[1-Hydroxy-7-(Phenylamino)-3-Sulphonato-2-Naphthyl]Azo]Phenyl]-6-Methyl[2,6'-Bibenzothiazole]-7-Sulphonate is a high-purity, water-soluble anionic dye belonging to the benzothiazole azo class, valued for its intense color and excellent substantivity. This compound matters for its superior performance as a specialized colorant and functional intermediate in demanding technical applications where stability and precise hue are critical. It is primarily needed by manufacturers in the textile, leather, and specialty paper industries, as well as by research and development laboratories focusing on advanced material science and dye chemistry.

Application

• Textile Dyeing: Primary application for dyeing natural and synthetic fibers, particularly where high wash and light fastness are required.
• Leather Finishing: Used in the coloration of leather goods, providing deep, uniform shades with good penetration.
• Specialty Paper & Inks: Acts as a colorant for high-grade papers, security inks, and other specialty printing applications.
• Biological Staining: Potential use as a histological or cytological stain in life science research due to its specific affinity.
• Functional Material Synthesis: Serves as a key intermediate or chromophore in the synthesis of advanced organic materials, sensors, or liquid crystals.
• Analytical Chemistry: Can be employed as a reagent or indicator in specific spectrophotometric analytical methods.

Basic Information

Product Name	Disodium 2'-[4-[[1-Hydroxy-7-(Phenylamino)-3-Sulphonato-2-Naphthyl]Azo]Phenyl]-6-Methyl[2,6'-Bibenzothiazole]-7-Sulphonate
CAS No.	6222-60-2
Molecular Formula	C40H25N5Na2O9S3
Molecular Weight	877.81 g/mol
Synonyms	Acid Black 210; C.I. 300310; Disodium 6-methyl-2'-[4-[(7-phenylamino-1-hydroxy-3-sulphonato-2-naphthyl)azo]phenyl][2,6'-bibenzothiazole]-7-sulphonate; 2,6'-Bibenzothiazole-7-sulfonic acid, 2'-[4-[[1-hydroxy-7-(phenylamino)-3-sulfo-2-naphthalenyl]azo]phenyl]-6-methyl-, disodium salt; Leather Black PV; Acid Leather Black PV; C.I. Acid Black 210
EINECS	Contact for details

Quality Control

Our production of Disodium 2'-[4-[[1-Hydroxy-7-(Phenylamino)-3-Sulphonato-2-Naphthyl]Azo]Phenyl]-6-Methyl[2,6'-Bibenzothiazole]-7-Sulphonate adheres to a stringent quality management system. Every batch undergoes comprehensive analytical testing, including HPLC for purity, spectrophotometry for color strength, and tests for insolubles and heavy metals to ensure it meets precise customer specifications. A Certificate of Analysis (COA) detailing all test results 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 a controlled room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed after each use to prevent absorption of atmospheric moisture, which can affect product performance and handling.

Specification

Item	Specification
Appearance	Dark blue to black powder or granules
Identification (IR)	Conforms to structure
Assay (HPLC)	Min. 95%
Color Strength	100% ± 3% (vs. Standard)
Moisture Content	Max. 5.0%
Water Solubility	Completely soluble
pH (1% Solution)	6.0 - 8.0
Heavy Metals (as Pb)	Max. 20 ppm

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