Description

4-[[4-[(4,6-Dichloro-1,3,5-Triazin-2-Yl)Amino]-2-Sulphophenyl]Azo]-4,5-Dihydro-5-Oxo-1-(4-Sulphophenyl)-1H-Pyrazole-3-Carboxylic Acid, Potassium Sodium Salt is a high-purity, water-soluble reactive dye intermediate of significant commercial importance. Its core value lies in its ability to form covalent bonds with hydroxyl or amino groups in substrates, providing excellent wash and light fastness properties. This compound is essential for manufacturers in the textile, leather, and specialty paper industries seeking to produce vibrant and durable colors.

Application

• Primary Intermediate for Reactive Dyes: Key building block for synthesizing high-performance reactive dyes used in cotton, viscose, and other cellulosic fiber dyeing and printing.
• Leather Coloring Agent: Used in the production of dyes for coloring leather goods, offering good penetration and color fastness.
• Paper Dye Manufacture: Intermediate in creating dyes for specialty papers, including colored tissue, packaging, and decorative papers.
• Ink Formulation: A component in the synthesis of pigments for certain types of industrial inks.
• Research & Development: Serves as a critical reagent in chemical R&D for developing new chromophores and functional dyes.
• Textile Printing Pastes: Incorporated into printing paste formulations for textile applications requiring specific shade and fastness profiles.

Basic Information

Product Name	4-[[4-[(4,6-Dichloro-1,3,5-Triazin-2-Yl)Amino]-2-Sulphophenyl]Azo]-4,5-Dihydro-5-Oxo-1-(4-Sulphophenyl)-1H-Pyrazole-3-Carboxylic Acid, Potassium Sodium Salt
CAS No.	85136-23-8
Molecular Formula	C19H9Cl2N8O9S2 · xK · yNa
Molecular Weight	Contact for details
Synonyms	Reactive Dye Intermediate 85136-23-8; 1H-Pyrazole-3-carboxylic acid, 4,5-dihydro-5-oxo-4-[[4-[(4,6-dichloro-1,3,5-triazin-2-yl)amino]-2-sulfophenyl]azo]-1-(4-sulfophenyl)-, potassium sodium salt; Potassium sodium 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; CI Reactive Red 198 intermediate; Triazinyl reactive dye intermediate; Dichlorotriazine dye intermediate; Sulfonated azo pyrazole carboxylic acid salt.
EINECS	Contact for details

Quality Control

Our production of this reactive dye intermediate adheres to strict quality management systems. Every batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation, to ensure consistent performance and batch-to-batch reliability. A detailed Certificate of Analysis (COA) specifying purity, impurity profile, and other critical parameters is provided with each shipment 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). This product is hygroscopic (moisture-sensitive); the container must be kept tightly sealed after opening to prevent absorption of atmospheric moisture, which can affect performance.

Specification

Item	Specification
Appearance	Dark red to brown powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 95.0%
Moisture Content	≤ 5.0%
Water Solubility	Freely soluble
Heavy Metals (as Pb)	≤ 20 ppm
pH (1% Solution)	6.0 - 8.0

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