Description

Disodium p-[4,5-Dihydro-4-[3-[5-Hydroxy-3-Methyl-1-(4-Sulphonatophenyl)-1H-Pyrazol-4-Yl]Allylidene]-3-Methyl-5-Oxo-1H-Pyrazol-1-Yl]Benzenesulphonate is a high-purity, water-soluble pyrazolone derivative valued for its specific chromophoric and complexing properties. This compound is critical for applications requiring precise color control and chemical stability in demanding environments. It is primarily utilized by manufacturers in the specialty dyes, analytical chemistry, and advanced material synthesis sectors.

Application

• Specialty Dye Intermediate: A key precursor for synthesizing high-performance azo and reactive dyes for textiles and inks.
• Analytical Reagent: Used as a complexometric agent or indicator in spectrophotometric analysis and metal ion detection.
• Photographic Chemicals: Functions in color coupler formulations for photographic and imaging films.
• Functional Material Synthesis: Serves as a building block for creating advanced polymers and organic electronic materials.
• Biochemical Research: Potential use as a staining agent or probe in specific histochemical and biochemical assays.

Basic Information

Item	Details
Product Name	Disodium p-[4,5-Dihydro-4-[3-[5-Hydroxy-3-Methyl-1-(4-Sulphonatophenyl)-1H-Pyrazol-4-Yl]Allylidene]-3-Methyl-5-Oxo-1H-Pyrazol-1-Yl]Benzenesulphonate
CAS No.	63870-34-8
Molecular Formula	C23H18N4Na2O8S2
Molecular Weight	588.51 g/mol
Synonyms	Disodium 5-Hydroxy-1-(4-sulfophenyl)-3-methyl-4-[(E)-3-[5-hydroxy-3-methyl-1-(4-sulfophenyl)-1H-pyrazol-4-yl]prop-2-en-1-ylidene]-1H-pyrazole-4-carboxylate; Acid Yellow 117; C.I. 24820; Pyrazolone Yellow; 4,4'-(1E,3E)-1,4-Bis(4-sulfophenyl)-3-methyl-1H-pyrazol-5(4H)-ylidene)but-2-enedioic acid disodium salt; 1,4-Bis(4-sulfophenyl)-3-methyl-1H-pyrazol-5(4H)-ylidene)but-2-enedioic acid disodium salt; Disodium 4,4'-(1E,3E)-1,4-Bis(4-sulfophenyl)-3-methyl-1H-pyrazol-5(4H)-ylidene)but-2-enedioic acid
EINECS	Contact for details

Quality Control

Our Disodium p-[4,5-Dihydro-4-[3-[5-Hydroxy-3-Methyl-1-(4-Sulphonatophenyl)-1H-Pyrazol-4-Yl]Allylidene]-3-Methyl-5-Oxo-1H-Pyrazol-1-Yl]Benzenesulphonate is manufactured under a strict quality management system. Every batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation, to ensure it meets precise customer specifications and industry standards. Certificates of Analysis (COA) documenting all critical parameters are available upon request.

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 each use to prevent moisture absorption and degradation.

Specification

Item	Specification
Appearance	Yellow to orange-yellow powder
Identification (IR)	Conforms to reference spectrum
Assay (HPLC)	≥ 95.0%
Water Content	≤ 5.0%
pH (1% Solution)	6.0 - 8.0
Heavy Metals (as Pb)	≤ 20 ppm
Solubility (in Water)	Clear, complete solution

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