Description

1H-Pyrazole-3-carboxylic acid, 4-[[5-[(5-chloro-2-fluoro-6-methyl-4-pyrimidinyl)amino]-2-sulfophenyl]azo]-1-(2,5-disulfophenyl)-4,5-dihydro-5-oxo-, trisodium salt is a high-purity, water-soluble azo dye intermediate of significant commercial importance. This compound is valued for its precise chromophoric structure, which enables the synthesis of specialized dyes and pigments with specific color properties and stability. It is primarily sought after by manufacturers in the textile, ink, and specialty chemical industries for producing high-performance colorants.

Application

• Primary Intermediate for Reactive Dyes: Key building block in the synthesis of high-grade reactive dyes for cotton and other cellulose fibers.
• Specialty Ink Formulations: Used in the production of pigments for inks requiring specific lightfastness and chemical resistance, such as those for packaging and security printing.
• Functional Dye Synthesis: Serves as a precursor for dyes used in biological staining, pH indicators, and other analytical applications.
• Research & Development: Employed in chemical R&D for developing novel chromophores and studying azo dye chemistry and properties.

Basic Information

Product Name	1H-Pyrazole-3-carboxylic acid, 4-[[5-[(5-chloro-2-fluoro-6-methyl-4-pyrimidinyl)amino]-2-sulfophenyl]azo]-1-(2,5-disulfophenyl)-4,5-dihydro-5-oxo-, trisodium salt
CAS No.	75198-83-3
Molecular Formula	C21H11ClFN7Na3O12S3
Molecular Weight	809.87 g/mol
Synonyms	Trisodium 4-[[5-[(5-chloro-2-fluoro-6-methylpyrimidin-4-yl)amino]-2-sulfophenyl]azo]-1-(2,5-disulfophenyl)-4,5-dihydro-5-oxo-1H-pyrazole-3-carboxylate; Reactive Dye Intermediate 75198-83-3; Azo Pyrazole Dye Intermediate; C.I. Reactive Orange 107 (related); 1H-Pyrazole-3-carboxylic acid, 4,5-dihydro-5-oxo-4-[[2-sulfo-5-[(5-chloro-2-fluoro-6-methyl-4-pyrimidinyl)amino]phenyl]azo]-1-(2,5-disulfophenyl)-, trisodium salt
EINECS	Contact for details

Quality Control

Our production of this dye intermediate adheres to strict quality management protocols to ensure batch-to-batch consistency and 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 a controlled room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed to prevent absorption of atmospheric moisture, which can affect product performance.

Specification

Item	Specification
Appearance	Dark red to brown powder or crystalline solid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Water Content (KF)	≤ 5.0%
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.