Description

Dipotassium p-[4,5-Dihydro-4-[5-[5-Hydroxy-3-Methyl-1-(4-Sulphonatophenyl)-1H-Pyrazol-4-Yl]Penta-2,4-Dienylidene]-3-Methyl-5-Oxo-1H-Pyrazol-1-Yl]Benzenesulphonate is a high-purity, water-soluble pyrazolone derivative valued for its exceptional chromophoric properties and stability. This compound is engineered to deliver consistent performance as a key intermediate in the synthesis of advanced colorants and functional dyes. It is primarily sought by manufacturers in the specialty chemicals, textile dyeing, and high-performance ink sectors for applications demanding precise color characteristics and chemical reliability.

Application

• Key Intermediate for Reactive Dyes: Serves as a critical building block in the synthesis of high-quality reactive dyes for cotton and other cellulosic fibers.
• Specialty Pigment Manufacturing: Used in the production of complex organic pigments for plastics, coatings, and inks requiring bright, stable hues.
• Functional Dye Synthesis: Employed in creating dyes for specialized applications, including laser marking, optical data storage, and non-linear optical materials.
• Textile Auxiliary Chemicals: Can be utilized in formulations for dye-fixing agents or other textile processing chemicals.
• Analytical Chemistry Reagent: Potential use as a chromogenic agent or a standard in analytical methods for dye quantification.
• Research & Development: A valuable compound for academic and industrial R&D focused on novel chromophores and dye chemistry.

Basic Information

Product Name	Dipotassium p-[4,5-Dihydro-4-[5-[5-Hydroxy-3-Methyl-1-(4-Sulphonatophenyl)-1H-Pyrazol-4-Yl]Penta-2,4-Dienylidene]-3-Methyl-5-Oxo-1H-Pyrazol-1-Yl]Benzenesulphonate
CAS No.	70208-51-4
Molecular Formula	C26H20K2N4O9S2
Molecular Weight	666.78 g/mol
Synonyms	Dipotassium 5-hydroxy-1-(4-sulfonatophenyl)-3-methyl-4-[(E)-5-oxo-3-methyl-1-(4-sulfonatophenyl)-4,5-dihydro-1H-pyrazol-4-ylidene]penta-1,3-dien-1-yl-1H-pyrazole-4-sulfonate; Reactive Dye Intermediate; Pyrazolone Sulfonate Derivative; 1,3-Diphenyl-4-benzoyl-5-pyrazolone Sulfonate (Dipotassium Salt); DPS Dye Intermediate; CAS 70208-51-4; 4,5-Dihydro-4-[5-[5-hydroxy-3-methyl-1-(4-sulfophenyl)-1H-pyrazol-4-yl]-2,4-pentadienylidene]-3-methyl-5-oxo-1-(4-sulfophenyl)-1H-pyrazole, Dipotassium Salt
EINECS	Contact for details

Quality Control

Our production of Dipotassium p-[4,5-Dihydro-4-[5-[5-Hydroxy-3-Methyl-1-(4-Sulphonatophenyl)-1H-Pyrazol-4-Yl]Penta-2,4-Dienylidene]-3-Methyl-5-Oxo-1H-Pyrazol-1-Yl]Benzenesulphonate adheres to a stringent quality management system. Every batch is analyzed against rigorous in-house specifications to ensure high purity, consistent chromophore strength, and batch-to-batch reproducibility. A comprehensive Certificate of Analysis (COA) detailing identity, assay, impurity profile, and physical parameters is provided with each shipment.

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). This material is hygroscopic (moisture-sensitive); keep the container tightly sealed when not in use to prevent absorption of atmospheric moisture, which may affect performance.

Specification

Item	Specification
Appearance	Orange to reddish-brown powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Loss on Drying	≤ 5.0%
Sulfated Ash	Conforms
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.