Description

Disodium 2-[4-[[1-[[(2-Methoxy-5-Methyl-4-Sulphonatophenyl)Amino]Carbonyl]-2-Oxopropyl]Azo]Phenyl]-6-Methylbenzothiazole-7-Sulphonate is a high-purity, water-soluble anionic dye belonging to the benzothiazole azo class. This compound is valued for its excellent color strength, stability, and compatibility in demanding industrial formulations. It is primarily sought after by manufacturers in the textile, ink, and specialty coatings industries for its reliable performance as a colorant.

Application

• Textile Dyeing: Used for dyeing natural and synthetic fibers, particularly where bright, wash-fast shades are required.
• Inkjet Inks: Serves as a key colorant component in high-performance pigment and dye-based inks for industrial and graphic arts printing.
• Paper Coloring: Employed in the surface coloring and coating of specialty papers and boards.
• Leather Finishing: Applied in the dyeing and finishing processes for leather goods to achieve consistent coloration.
• Functional Coatings: Incorporated into coatings where specific colorimetric properties are needed alongside chemical resistance.
• Biological Staining: Potential use as a histological stain in laboratory settings due to its specific chromophoric structure.

Basic Information

Product Name	Disodium 2-[4-[[1-[[(2-Methoxy-5-Methyl-4-Sulphonatophenyl)Amino]Carbonyl]-2-Oxopropyl]Azo]Phenyl]-6-Methylbenzothiazole-7-Sulphonate
CAS No.	72705-26-1
Molecular Formula	C26H21N4Na2O9S3
Molecular Weight	690.62 g/mol
Synonyms	Acid Yellow 219; C.I. 13995; Disodium 6-methyl-2-[4-[[1-[[(2-methoxy-5-methyl-4-sulfonatophenyl)amino]carbonyl]-2-oxopropyl]azo]phenyl]-1,3-benzothiazole-7-sulfonate; 2-[4-[[1-[[(2-Methoxy-5-methyl-4-sulfophenyl)amino]carbonyl]-2-oxopropyl]azo]phenyl]-6-methylbenzothiazole-7-sulfonic acid disodium salt; C.I. Acid Yellow 219; Benzothiazole, 2-[4-[[1-[[(2-methoxy-5-methyl-4-sulfophenyl)amino]carbonyl]-2-oxopropyl]azo]phenyl]-6-methyl-7-sulfo-, sodium salt (1:2)
EINECS	Contact for details

Quality Control

Our production of Disodium 2-[4-[[1-[[(2-Methoxy-5-Methyl-4-Sulphonatophenyl)Amino]Carbonyl]-2-Oxopropyl]Azo]Phenyl]-6-Methylbenzothiazole-7-Sulphonate adheres to stringent quality management protocols. Every batch undergoes comprehensive analytical testing to ensure consistent purity, color value, and chemical composition. Certificates of Analysis (COA) detailing key parameters are provided with each shipment to guarantee traceability and compliance with your specifications.

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). This material is hygroscopic (moisture-sensitive); the container must be kept tightly sealed after opening to prevent absorption of atmospheric moisture, which can affect product performance.

Specification

Item	Specification
Appearance	Yellow to orange powder
Identification (IR)	Conforms to standard
Assay (HPLC)	≥ 95.0%
Color Strength	100 ± 5% (vs. Standard)
Moisture Content (KF)	≤ 5.0%
Water Solubility	Clear solution at 1%
Ash Content	≤ 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.