Description

Trisodium 1-[5-[[(3,6-Dichloropyridazin-4-Yl)Carbonyl]Amino]-2-Methyl-3-Sulphonatophenyl]-4,5-Dihydro-5-Oxo-4-[(2-Sulphonatophenyl)Azo]-1H-Pyrazole-3-Carboxylate CAS NO 94021-09-7 is a high-purity, water-soluble anionic dye intermediate characterized by its complex heterocyclic structure containing a pyrazole core, azo linkage, and multiple sulphonate groups. This compound is engineered for exceptional color strength and stability, making it a critical precursor in the synthesis of high-performance dyes and pigments. It is primarily utilized by manufacturers in the textile, ink, and specialty chemical industries seeking to produce vivid, lightfast, and wash-fast colorants.

Application

• Primary Intermediate for Reactive Dyes: A key building block in the synthesis of high-grade reactive dyes for cotton, wool, and nylon fibers, offering excellent wash and light fastness.
• Production of Acid Dyes: Used in manufacturing acid dyes for silk, wool, and polyamide textiles, providing bright and durable coloration.
• Specialty Ink Formulations: Serves as a crucial component in creating pigments for high-quality inks used in jet printing, packaging, and security applications.
• Functional Colorants: Employed in the development of functional dyes for non-textile applications, including lasers, optical data storage, and liquid crystal displays (LCDs).
• Research & Development: Used in academic and industrial R&D laboratories for exploring novel chromophores and advanced material science applications.

Basic Information

Product Name	Trisodium 1-[5-[[(3,6-Dichloropyridazin-4-Yl)Carbonyl]Amino]-2-Methyl-3-Sulphonatophenyl]-4,5-Dihydro-5-Oxo-4-[(2-Sulphonatophenyl)Azo]-1H-Pyrazole-3-Carboxylate
CAS No.	94021-09-7
Molecular Formula	C23H14Cl2N8Na3O11S2
Molecular Weight	~ 809.42 g/mol (Contact for exact details)
Synonyms	Trisodium 5-[(3,6-dichloro-4-pyridazinyl)carbonylamino]-2-methyl-4-[(2-sulfophenyl)azo]-3-oxo-2,4-dihydropyrazole-1-carboxylate-3-sulfonate; Reactive Dye Intermediate 94021-09-7; Azo Pyrazole Dye Intermediate; CI Reactive Red 198 Intermediate (related); 1H-Pyrazole-3-carboxylic acid, 4,5-dihydro-5-oxo-1-[5-[[(3,6-dichloro-4-pyridazinyl)carbonyl]amino]-2-methyl-3-sulfophenyl]-4-[(2-sulfophenyl)azo]-, trisodium salt; Trisodium salt of an azo pyrazole carboxylic acid dye.
EINECS	Contact for details

Quality Control

Our production of Trisodium 1-[5-[[(3,6-Dichloropyridazin-4-Yl)Carbonyl]Amino]-2-Methyl-3-Sulphonatophenyl]-4,5-Dihydro-5-Oxo-4-[(2-Sulphonatophenyl)Azo]-1H-Pyrazole-3-Carboxylate adheres to stringent quality protocols to ensure batch-to-batch consistency and purity for industrial synthesis. Each lot is analyzed using advanced techniques like HPLC and spectrophotometry to confirm identity, strength, and impurity profiles. Certificates of Analysis (COA) documenting all critical parameters are provided with every shipment to support your quality assurance and regulatory compliance needs.

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). Keep away from strong oxidizing agents. Due to its light-sensitive nature, the container should be opaque or stored in darkness to prevent degradation.

Specification

Item	Specification
Appearance	Reddish-brown to dark brown powder
Identification (IR)	Conforms to structure
Assay (HPLC)	Min. 95%
Water Content	Max. 5.0%
Solubility (in Water)	Freely soluble
Heavy Metals (as Pb)	Max. 20 ppm
Related Substances (HPLC)	Total impurities: Max. 3.0%

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