Description

Disodium Hydrogen 4-[[5-[(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, water-soluble reactive dye intermediate of significant commercial importance. Its core value lies in its ability to form stable covalent bonds with cellulose fibers, making it a critical precursor for producing brilliant and wash-fast reactive dyes. This compound is essential for manufacturers in the textile industry seeking to develop high-performance dyes for cotton, viscose, and other cellulosic materials, offering superior color yield and excellent fastness properties.

Application

• Primary Intermediate for Reactive Dyes: Key building block in the synthesis of high-quality reactive dyes, particularly for brilliant shades like yellows and oranges.
• Textile Dyeing and Printing: Used in the production of dyes for exhaust, pad-batch, and continuous dyeing processes of cellulosic fabrics.
• Specialty Colorant Production: Serves as a precursor for creating specialized colorants with enhanced properties like lightfastness and chlorine resistance.
• Research & Development: Utilized in R&D laboratories for developing novel dye structures and studying dye-fiber interaction mechanisms.
• Industrial Ink Formulation: Potential use in formulating inks for specialized printing applications where reactive bonding is advantageous.

Basic Information

Product Name	Disodium Hydrogen 4-[[5-[(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.	14552-81-9
Molecular Formula	C20H10Cl2N8Na2O10S2
Molecular Weight	691.36 g/mol
Synonyms	Reactive Yellow 2 Precursor; C.I. Reactive Yellow 2 Intermediate; 4-[[5-[(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; Disodium 4,5-dihydro-5-oxo-1-(4-sulfophenyl)-4-[(5-[(4,6-dichloro-1,3,5-triazin-2-yl)amino]-2-sulfophenyl)azo]-1H-pyrazole-3-carboxylate; Reactive Dye Intermediate 14552-81-9; Pyrazolone-based reactive dye intermediate; Triazinyl reactive dye intermediate.
EINECS	Contact for details

Quality Control

Our production of Disodium Hydrogen 4-[[5-[(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 a stringent quality management system. Every batch undergoes rigorous analytical testing to ensure high purity, consistent chemical composition, and optimal performance as a dye intermediate. Certificates of Analysis (COA) detailing purity, assay, and impurity profiles are available upon request to support your quality assurance protocols.

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). Keep away from strong oxidizing agents and incompatible materials. The container should be kept tightly sealed to protect from moisture.

Specification

Item	Specification
Appearance	Yellow to orange powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Water Content (KF)	≤ 5.0%
pH (1% Solution)	6.0 - 8.0
Heavy Metals (as Pb)	≤ 20 ppm
Solubility in Water	Freely soluble

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