Description

Tripotassium 2,5-Bis[4-[[4,5-Dihydro-3-Methyl-5-Oxo-1-(4-Sulphonatophenyl)-1H-Pyrazol-4-Yl]Azo]Benzamido]Benzenesulphonate is a high-purity, water-soluble organic salt belonging to the class of disazo pyrazolone dyes. This compound matters for its exceptional color strength and stability, making it a critical component for demanding technical applications. It is primarily needed by manufacturers in the textile, ink, and specialty coatings industries seeking reliable and consistent colorants.

Application

• Textile Dyeing and Printing: As a key dye intermediate for coloring natural and synthetic fibers, particularly where high wash and light fastness are required.
• Ink Formulation: Used in the production of high-performance inks for packaging, security printing, and digital applications.
• Specialty Coatings and Paints: Imparts vibrant and durable coloration to industrial and decorative coatings.
• Paper Coloration: Employed in the manufacture of specialty colored papers and paper products.
• Biological Staining Reagent: Potential use as a specialized stain in histological and cytological applications.
• Functional Dye Intermediate: Serves as a precursor for synthesizing dyes used in liquid crystal displays (LCDs) and other optoelectronic devices.

Basic Information

Item	Detail
Product Name	Tripotassium 2,5-Bis[4-[[4,5-Dihydro-3-Methyl-5-Oxo-1-(4-Sulphonatophenyl)-1H-Pyrazol-4-Yl]Azo]Benzamido]Benzenesulphonate
CAS No.	67875-09-6
Molecular Formula	C48H30K3N10O14S3
Molecular Weight	1184.31 g/mol
Synonyms	Acid Yellow 220 (C.I. 27795); C.I. Acid Yellow 220; Disodium 2,5-bis[4-[[4,5-dihydro-3-methyl-5-oxo-1-(4-sulfophenyl)-1H-pyrazol-4-yl]azo]benzamido]benzenesulfonate (related salt); Tripotassium salt of Acid Yellow 220; 2,5-Bis[4-[[4,5-dihydro-3-methyl-5-oxo-1-(4-sulfonatophenyl)-1H-pyrazol-4-yl]azo]benzamido]benzenesulfonic acid tripotassium salt; Pyrazolone Yellow 220; AY 220
EINECS	Contact for details

Quality Control

Our production of Tripotassium 2,5-Bis[4-[[4,5-Dihydro-3-Methyl-5-Oxo-1-(4-Sulphonatophenyl)-1H-Pyrazol-4-Yl]Azo]Benzamido]Benzenesulphonate adheres to stringent quality protocols. Every batch undergoes comprehensive analytical testing, including HPLC for purity and spectrophotometry for color value, to ensure it meets exacting industry and customer-specific specifications. A detailed Certificate of Analysis (COA) is provided with each shipment to guarantee traceability and compliance.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at 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	Yellow to orange-yellow powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Color Strength	100 ± 3% (vs. Standard)
Moisture (KF)	≤ 5.0%
Ash Content	≤ 20.0%
Water Solubility	Clear solution at 1%
Heavy Metals (as Pb)	≤ 20 ppm

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