Description

Trisodium Hydrogen 4,5-Dihydro-5-Oxo-4-[(3-Phosphonatophenyl)Azo]-1-(4-Sulphonatophenyl)-1H-Pyrazole-3-Carboxylate is a high-purity, water-soluble azo dye intermediate and functional chemical. Its value lies in its unique molecular structure, which combines a pyrazole core with phosphonate and sulfonate groups, offering excellent chelating properties and thermal stability. This compound is essential for manufacturers in the textile, specialty chemical, and advanced material sectors seeking to develop high-performance colorants and functional additives.

Application

• Primary Intermediate for Reactive Dyes: A key building block in the synthesis of high-grade reactive dyes for cotton and cellulose fibers, providing excellent wash and light fastness.
• Functional Additive in Detergents: Used in industrial and institutional cleaning formulations for its metal ion sequestering (chelating) and anti-redeposition properties.
• Specialty Pigment Manufacturing: Serves as a precursor for producing high-performance organic pigments used in inks, coatings, and plastics.
• Water Treatment Chemical: Acts as a scale and corrosion inhibitor in industrial cooling and boiler water systems due to its phosphonate functionality.
• Analytical Reagent: Employed in laboratory settings as a chromogenic agent or metal indicator in complexometric titrations and analytical chemistry.
• Research & Development: A valuable compound for R&D in developing new polymeric materials, metal-organic frameworks (MOFs), and advanced chemical sensors.

Basic Information

Product Name	Trisodium Hydrogen 4,5-Dihydro-5-Oxo-4-[(3-Phosphonatophenyl)Azo]-1-(4-Sulphonatophenyl)-1H-Pyrazole-3-Carboxylate
CAS No.	84051-92-3
Molecular Formula	C16H10N4Na3O10PS
Molecular Weight	574.28 g/mol
Synonyms	4,5-Dihydro-5-oxo-4-[(3-phosphonatophenyl)azo]-1-(4-sulphonatophenyl)-1H-pyrazole-3-carboxylic acid, trisodium salt; Trisodium 4,5-dihydro-5-oxo-4-[(3-phosphonophenyl)azo]-1-(4-sulfophenyl)-1H-pyrazole-3-carboxylate; Reactive Dye Intermediate 84051-92-3; Azo pyrazole phosphonate sulfonate; C.I. Reactive Orange 84 intermediate; Phosphonated azo pyrazole dye; 1H-Pyrazole-3-carboxylic acid, 4,5-dihydro-5-oxo-4-[(3-phosphonatophenyl)azo]-1-(4-sulphonatophenyl)-, trisodium salt
EINECS	Contact for details

Quality Control

Our production of Trisodium Hydrogen 4,5-Dihydro-5-Oxo-4-[(3-Phosphonatophenyl)Azo]-1-(4-Sulphonatophenyl)-1H-Pyrazole-3-Carboxylate adheres to a stringent quality management system. Every batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation, to ensure consistency and compliance with customer specifications. Certificates of Analysis (COA) detailing all critical parameters are provided and available upon request to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). This material is hygroscopic (moisture-sensitive); keep the container tightly sealed to prevent absorption of atmospheric moisture.

Specification

Item	Specification
Appearance	Orange to brown powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Water Content	≤ 5.0%
pH (1% Solution)	7.0 - 9.0
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.