Description

Trisodium 6-Methyl-2-[4-[[2-Oxo-1-[[(4-Sulphonato-1-Naphthyl)Amino]Carbonyl]Propyl]Azo]-3-Sulphonatophenyl]Benzothiazole-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 aqueous formulations. It is primarily utilized by manufacturers in the textile, paper, and specialty ink industries seeking reliable and consistent colorants for their processes.

Application

• Textile Dyeing: Used for dyeing and printing on cellulosic fibers like cotton, providing bright and wash-fast shades.
• Paper Coloring: Imparts color to paper pulp, coatings, and specialty papers where water solubility is essential.
• Inkjet Inks: Serves as a key colorant component in the formulation of high-performance aqueous inks for digital printing.
• Leather Finishing: Applied in the dyeing of leather to achieve uniform and vibrant colors.
• Biological Staining: Potential use as a specialized stain in histological or microbiological applications due to its specific structure.
• Liquid Detergent Colorants: Incorporated to provide stable coloration in liquid soap and detergent formulations.

Basic Information

Product Name	Trisodium 6-Methyl-2-[4-[[2-Oxo-1-[[(4-Sulphonato-1-Naphthyl)Amino]Carbonyl]Propyl]Azo]-3-Sulphonatophenyl]Benzothiazole-7-Sulphonate
CAS No.	40842-88-4
Molecular Formula	C28H18N4Na3O11S3
Molecular Weight	784.68 g/mol
Synonyms	Acid Yellow 219; C.I. 13915; Benzenesulfonic acid, 2-[[1-[[(4-sulfo-1-naphthalenyl)amino]carbonyl]-2-oxopropyl]azo]-5-sulfo-, 6-methylbenzothiazolium deriv., trisodium salt; Trisodium 6-methyl-2-(4-((1-((4-sulfonato-1-naphthyl)carbamoyl)-2-oxopropyl)azo)-3-sulfonatophenyl)benzothiazol-1-ium-7-sulfonate; Reactive Yellow Dye Intermediate; Azo Benzothiazole Dye
EINECS	Contact for details

Quality Control

Our production of this dye intermediate adheres to strict quality management protocols to ensure batch-to-batch consistency and performance. Every lot is analyzed for critical parameters including color strength, hue, and impurity profile. Certificates of Analysis (COA) documenting purity, assay, and specific tests are provided to guarantee the product meets your technical 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). Due to its hygroscopic nature, the container must be kept tightly sealed to prevent moisture absorption, which can affect product performance and handling.

Specification

Item	Specification
Appearance	Yellow to Orange Powder
Identification (IR)	Conforms to Standard
Assay (HPLC)	≥ 95.0%
Moisture Content	≤ 5.0%
Water Solubility	Completely Soluble
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.