Description

Tripotassium p-[4,5-Dihydro-3-Methyl-4-[5-[3-Methyl-5-Oxido-1-(4-Sulphonatophenyl)-1H-Pyrazol-4-Yl]Penta-2,4-Dienylidene]-5-Oxo-1H-Pyrazol-1-Yl]Benzenesulphonate is a high-purity, water-soluble anionic dye intermediate characterized by its complex pyrazolone-based structure. This compound is essential for synthesizing advanced, high-performance dyes and pigments with excellent color fastness and stability. It is primarily utilized by manufacturers in the textile, ink, and specialty coatings industries seeking to develop vibrant and durable colorants.

Application

• Primary Intermediate for Reactive Dyes: A key building block in the synthesis of high-quality reactive dyes for cotton and other cellulosic fibers.
• Textile Colorant Production: Used in manufacturing dyes for wool, silk, and nylon, offering bright shades and good wash-fastness.
• Inkjet Ink Formulations: Serves as a precursor for pigments in professional and industrial inkjet printing inks.
• Specialty Coatings and Paints: Employed in creating colorants for automotive, industrial, and decorative coatings requiring light and weather resistance.
• Liquid Crystal Display (LCD) Color Filters: Potential use in the production of color filters for electronic displays due to its precise color properties.
• Biological Staining Reagents: Can be used in the development of histological stains for microscopy in life sciences research.

Basic Information

Product Name	Tripotassium p-[4,5-Dihydro-3-Methyl-4-[5-[3-Methyl-5-Oxido-1-(4-Sulphonatophenyl)-1H-Pyrazol-4-Yl]Penta-2,4-Dienylidene]-5-Oxo-1H-Pyrazol-1-Yl]Benzenesulphonate
CAS No.	63811-37-0
Molecular Formula	C26H19K3N4O9S2
Molecular Weight	704.88 g/mol
Synonyms	Benzenesulfonic acid, 4,5-dihydro-3-methyl-4-[(5-{3-methyl-5-oxido-1-[4-(sulfooxy)phenyl]-1H-pyrazol-4-yl}-2,4-pentadien-1-ylidene]-5-oxo-1H-pyrazol-1-yl]-, tripotassium salt; Tripotassium 4-[4,5-dihydro-3-methyl-4-[(5-{3-methyl-5-oxido-1-[4-(sulfonatooxy)phenyl]-1H-pyrazol-4-yl}penta-2,4-dien-1-ylidene]-5-oxo-1H-pyrazol-1-yl]benzenesulfonate; Reactive Dye Intermediate; Pyrazolone-based dye intermediate; CI Reactive Red 198 intermediate (related)
EINECS	Contact for details

Quality Control

Our production of Tripotassium p-[4,5-Dihydro-3-Methyl-4-[5-[3-Methyl-5-Oxido-1-(4-Sulphonatophenyl)-1H-Pyrazol-4-Yl]Penta-2,4-Dienylidene]-5-Oxo-1H-Pyrazol-1-Yl]Benzenesulphonate adheres to stringent quality management systems to ensure batch-to-batch consistency and purity. Each lot is analyzed against rigorous in-house specifications, which are aligned with industry standards for dye intermediates. Certificates of Analysis (COA) detailing purity, identity, and impurity profiles 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 (moisture-sensitive) nature, the container must be kept tightly sealed after opening to prevent absorption of atmospheric moisture, which can affect product performance.

Specification

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

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