Description

Trisodium 4-[[3-(4,5-Dichloro-6-Oxo-6H-Pyridazin-1-Yl)Propionyl]Amino]-5-Hydroxy-6-[(4-Sulphonatophenyl)Azo]Naphthalene-2,7-Disulphonate is a high-purity, water-soluble azo dye intermediate of significant industrial importance. This compound is valued for its role in synthesizing specialized reactive and direct dyes, offering excellent color strength and binding properties. It is primarily required by manufacturers in the textile, leather, and specialty ink industries for producing vivid and durable colorants.

Application

• Primary Intermediate for Reactive Dyes: Key building block in the synthesis of high-performance reactive dyes for cotton, wool, and nylon.
• Direct Dye Production: Used in manufacturing direct dyes for paper coloring and textile applications requiring good wet fastness.
• Leather Dyeing: Employed in the formulation of dyes for leather finishing, providing deep, uniform shades.
• Specialty Ink Formulation: A component in the production of inks for jet printing and other specialty applications.
• Research & Development: Serves as a precise chemical standard and intermediate in organic synthesis and color chemistry R&D.
• Analytical Chemistry: Can be used as a chromatographic standard or reagent in specific analytical methods.

Basic Information

Product Name	Trisodium 4-[[3-(4,5-Dichloro-6-Oxo-6H-Pyridazin-1-Yl)Propionyl]Amino]-5-Hydroxy-6-[(4-Sulphonatophenyl)Azo]Naphthalene-2,7-Disulphonate
CAS No.	85958-98-1
Molecular Formula	C29H18Cl2N6Na3O13S3
Molecular Weight	~951.5 g/mol
Synonyms	Trisodium 4-[[3-(4,5-dichloro-6-oxo-1(6H)-pyridazinyl)propanoyl]amino]-5-hydroxy-6-[(4-sulfophenyl)azo]-2,7-naphthalenedisulfonate; Reactive Dye Intermediate; Azo Dye Intermediate; C.I. Reactive Red 238 intermediate; 4-[[3-(4,5-Dichloro-6-oxo-1,6-dihydropyridazin-1-yl)propanoyl]amino]-5-hydroxy-6-[(4-sulfonatophenyl)diazenyl]naphthalene-2,7-disulfonic acid trisodium salt
EINECS	Contact for details

Quality Control

Our production of this dye intermediate adheres to strict quality control protocols to ensure batch-to-batch consistency and high purity. Quality is verified through advanced analytical techniques including HPLC, UV-Vis spectroscopy, and elemental analysis. A comprehensive Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is provided with every shipment to support your quality assurance processes.

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 (moisture-sensitive) nature, the container must be kept sealed to prevent absorption of atmospheric moisture.

Specification

Item	Specification
Appearance	Dark red to brown powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Moisture Content	≤ 5.0%
Solubility (in Water)	Clear solution
Heavy Metals (as Pb)	≤ 20 ppm

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