Description

Azo Blue CAS NO 6420-06-0 is a synthetic organic dye belonging to the azo class, characterized by its vibrant blue color and specific chemical structure. This compound is valued for its strong tinctorial strength and stability, making it a key component in various industrial coloring processes. It is primarily utilized by manufacturers in the textile, ink, and specialty coatings industries seeking consistent and reliable colorants for their products.

Application

• Textile Dyeing: Used for coloring natural and synthetic fibers, including cotton, wool, and polyamide.
• Ink Formulation: Serves as a key pigment in the production of printing inks for packaging and publications.
• Industrial Coatings: Incorporated into paints and coatings for plastics, metals, and wood to provide durable coloration.
• Paper Coloring: Applied in the surface treatment and dyeing of specialty papers and paperboard.
• Leather Finishing: Used in the dyeing process for leather goods to achieve uniform blue shades.
• Biological Staining: May be employed as a histological stain in laboratory settings for microscopic analysis.

Basic Information

Product Name	Azo Blue
CAS No.	6420-06-0
Molecular Formula	C32H26N4Na2O6S2
Molecular Weight	664.68 g/mol
Synonyms	Acid Blue 92; C.I. 13390; Erioglaucine A; Erioglaucine disodium salt; Wool Blue B; Lissamine Blue B; Disodium 2-[[4-[ethyl-[(3-sulfonatophenyl)methyl]amino]phenyl]-[4-[ethyl-[(3-sulfonatophenyl)methyl]azaniumylidene]cyclohexa-2,5-dien-1-ylidene]methyl]benzenesulfonate
EINECS	229-178-8

Quality Control

Our Azo Blue is produced under a strict quality management system to ensure batch-to-batch consistency and high purity. Quality is verified through comprehensive analytical testing, including HPLC for assay and identification. A Certificate of Analysis (COA) detailing purity, heavy metal content, and other critical parameters is provided with every shipment to guarantee compliance with your specifications.

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 incompatible materials and sources of ignition.

Specification

Item	Specification
Appearance	Dark blue powder
Identification (IR)	Conforms to standard
Assay (HPLC)	≥ 95.0%
Loss on Drying	≤ 5.0%
Sulfated Ash	≤ 1.0%
Heavy Metals (as Pb)	≤ 20 ppm
Water Solubility	Freely soluble

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