Description

Disodium Hydrogen 4-[[4-[(4,6-Dichloro-1,3,5-Triazin-2-Yl)Amino]-2-Sulphonatophenyl]Azo]-4,5-Dihydro-5-Oxo-1-(4-Sulphonatophenyl)-1H-Pyrazole-3-Carboxylate is a high-purity, reactive dye intermediate and chemical building block. This compound is valued for its ability to form covalent bonds with substrates, making it a critical component in the synthesis of high-performance colorants and functional materials. It is primarily sought by manufacturers in the textile, specialty chemical, and advanced material sectors for creating wash-fast, light-stable dyes and pigments.

Application

• Reactive Dye Synthesis: A key intermediate for manufacturing fiber-reactive dyes, particularly for cotton and other cellulosic textiles, ensuring excellent wash and light fastness.
• Textile Printing and Dyeing: Used in the production of dyes for industrial textile printing and continuous dyeing processes.
• Functional Pigments: Serves as a precursor for creating high-performance pigments used in inks, coatings, and plastics.
• Biomolecule Labeling: Potential application in biochemical research for labeling proteins or other biomolecules due to its reactive triazine chloride groups.
• Cross-linking Agent: Can be utilized in polymer chemistry as a cross-linking agent to modify material properties.
• Research & Development: Employed in chemical R&D for synthesizing novel azo and heterocyclic compounds.

Basic Information

Item	Details
Product Name	Disodium Hydrogen 4-[[4-[(4,6-Dichloro-1,3,5-Triazin-2-Yl)Amino]-2-Sulphonatophenyl]Azo]-4,5-Dihydro-5-Oxo-1-(4-Sulphonatophenyl)-1H-Pyrazole-3-Carboxylate
CAS No.	70865-28-0
Molecular Formula	C20H10Cl2N8Na2O10S2
Molecular Weight	723.37 g/mol
Synonyms	Reactive Red 198 (C.I. 18221); C.I. Reactive Red 198; Disodium 4-[[4-[(4,6-dichloro-1,3,5-triazin-2-yl)amino]-2-sulfophenyl]azo]-4,5-dihydro-5-oxo-1-(4-sulfophenyl)-1H-pyrazole-3-carboxylate; Reactive Red 198 dye intermediate; 4-[[4-[(4,6-Dichloro-1,3,5-triazin-2-yl)amino]-2-sulfophenyl]azo]-4,5-dihydro-5-oxo-1-(4-sulfophenyl)-1H-pyrazole-3-carboxylic acid disodium salt
EINECS	Contact for details

Quality Control

Our production of Disodium Hydrogen 4-[[4-[(4,6-Dichloro-1,3,5-Triazin-2-Yl)Amino]-2-Sulphonatophenyl]Azo]-4,5-Dihydro-5-Oxo-1-(4-Sulphonatophenyl)-1H-Pyrazole-3-Carboxylate adheres to stringent quality management systems. Every batch undergoes rigorous analytical testing to ensure high purity, consistent reactivity, and batch-to-batch uniformity, meeting the demanding specifications of industrial dye synthesis. Certificates of Analysis (COA) detailing purity, assay, and impurity profiles are provided with each shipment.

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). Due to its hygroscopic nature, the container must be kept tightly sealed to prevent moisture absorption, which can affect reactivity and stability. Keep away from incompatible materials.

Specification

Item	Specification
Appearance	Reddish-brown to dark brown powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Moisture Content	≤ 5.0%
Water Solubility	Freely soluble
Heavy Metals (as Pb)	≤ 20 ppm
Related Substances (HPLC)	Total impurities ≤ 3.0%

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