Description

Trisodium (4Z)-5-Oxo-1-(4-Sulfonatophenyl)-4-[(4-Sulfonatophenyl)Hydrazinylidene]Pyrazole-3-Carboxylate is a high-purity, water-soluble organic salt characterized by its distinctive pyrazole-based structure and dual sulfonate groups. This compound is valued for its strong chelating properties and its ability to form stable complexes with various metal ions, making it a critical intermediate in advanced chemical synthesis. It is primarily utilized by manufacturers in the production of specialized dyes, analytical reagents, and high-performance chelating agents for industrial and research applications.

Application

• Specialized Dye Intermediate: A key precursor in the synthesis of high-value, water-soluble azo dyes and pigments for textiles, inks, and coatings.
• Analytical Chemistry Reagent: Used as a selective chelating agent and colorimetric indicator in the detection and quantification of specific metal ions.
• Metal Chelation & Sequestration: Employed in formulations for water treatment, industrial cleaning, and scale inhibition due to its effective binding of calcium, magnesium, and transition metals.
• Pharmaceutical Intermediate: Serves as a building block in the research and development of novel active pharmaceutical ingredients (APIs) with complex heterocyclic structures.
• Photographic Chemicals: Utilized in the formulation of certain light-sensitive layers and developing agents.
• Catalyst Ligand: Acts as a ligand in homogeneous catalysis for various organic synthesis reactions.

Basic Information

Product Name	Trisodium (4Z)-5-Oxo-1-(4-Sulfonatophenyl)-4-[(4-Sulfonatophenyl)Hydrazinylidene]Pyrazole-3-Carboxylate
CAS No.	84842-94-4
Molecular Formula	C16H9N4Na3O9S2
Molecular Weight	550.36 g/mol
Synonyms	Trisodium 1-(4-Sulfophenyl)-5-oxo-4-[(4-sulfophenyl)hydrazono]-4,5-dihydro-1H-pyrazole-3-carboxylate; Acid Yellow 117 (C.I. 24820); Food Yellow 5; Trisodium 5-oxo-1-(4-sulfonatophenyl)-4-[(4-sulfonatophenyl)hydrazinylidene]-4,5-dihydro-1H-pyrazole-3-carboxylate; 1-(4-Sulfophenyl)-4-[(4-sulfophenyl)hydrazono]-5-oxo-4,5-dihydro-1H-pyrazole-3-carboxylic Acid Trisodium Salt; C.I. 24820; FD&C Yellow No. 5 Lake precursor.
EINECS	Contact for details

Quality Control

Every batch of Trisodium (4Z)-5-Oxo-1-(4-Sulfonatophenyl)-4-[(4-Sulfonatophenyl)Hydrazinylidene]Pyrazole-3-Carboxylate is manufactured under a strict quality management system and undergoes comprehensive analytical testing to ensure identity, purity, and consistency. Our quality protocols are designed to meet the stringent requirements of industrial and research applications. Certificates of Analysis (COA) documenting key parameters are available upon request to support your quality assurance and regulatory compliance needs.

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 after opening to prevent moisture absorption, which can affect product stability and performance. Keep away from incompatible materials.

Specification

Item	Specification
Appearance	Yellow to orange-yellow powder
Identification (IR)	Conforms to reference spectrum
Assay (HPLC)	≥ 95.0%
Loss on Drying	≤ 5.0%
pH (1% Solution)	7.0 - 9.0
Heavy Metals (as Pb)	≤ 20 ppm
Water Solubility	Freely soluble

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